Rotary abrading or polishing tool
AssigneeHutchins Manufacturing Company
InventorDonald Hutchins
Life of this patent
Estimating the term…
Abstract
An abrading or polishing tool comprises a housing that contains a pneumatically drive motor mounted therein. A drive assembly is contained at least partially in the housing and is engaged with the motor to be driven by the motor during operation. A head is engaged with the drive assembly and includes a spindle portion, the head and spindle being rotated during operation of the motor. The head is further configured to engage a working pad for abrading or polishing a work surface. A double bearing assembly is contained within the housing and is engaged with a portion of the spindle adjacent the lower end of the spindle to substantially prevent radial play of the spindle during operation of the tool.
Claims17
An abrading or polishing tool comprising:
- a housing;
- a motor mounted in the housing;
- a drive assembly contained at least partially in the housing and engaged with the motor to be driven by the motor, the drive assembly including a planetary gear assembly;
- a head engaged with the drive assembly and including a spindle, the spindle being rotated during operation of the motor, the head being configured to engage a working pad;
- and
- a double bearing assembly engaged with a portion of the spindle adjacent the lower end of the spindle;
- the drive assembly including a drive shaft comprising a portion driven by the motor, the drive shaft further including a pinion gear portion engaged with the planetary gear assembly, the drive shaft being journaled to the housing for rotation relative to the housing;
- the drive assembly still further including a driver engaged to the head for rotation therewith;
- and
- the planetary gear assembly including plural satellite gears journaled on the driver and a planet gear meshed with the respective satellite gears, the pinion gear portion of the drive shaft being engaged to the satellite gears, whereby rotation of the drive shaft causes the satellite gears to orbit relative to the planet gear and causes the drive and head to rotate.
An abrading or polishing tool comprising:
- a housing;
- a motor contained in the housing;
- a drive assembly engaged to said motor, said drive assembly including a drive shaft that is rotated by said motor and a planetary gear assembly engaged with the drive shaft;
- a head engaged with the drive assembly to be rotated by the drive assembly, the head including a spindle and configured to engage a working pad;
- and
- a bearing assembly including two rows of ball bearings spaced axially from one another, the bearing assembly being engaged with the spindle;
- the drive assembly including a driver engaged to the head for rotation therewith;
- and
- the planetary gear assembly including plural satellite gears journaled on the driver and a planet gear meshed with the respective satellite gears, the drive shaft having a pinion gear portion engaged with the satellite gears, whereby rotation of the drive shaft causes the satellite gears to orbit about the planet gear and causes the driver and head to rotate.
An abrading or polishing tool comprising:
- a housing;
- a motor mounted in the housing;
- a drive assembly contained at least partially in the housing and engaged with the motor, the drive assembly including a drive shaft that is rotated by said motor and a planetary gear assembly engaged with the drive shaft;
- a head engaged with the drive assembly and including a spindle, the head and spindle being rotated during operation of the motor, the head being configured to engage a working pad to abrade or polish a work surface;
- and
- a bearing assembly engaged with a portion of the spindle to substantially prevent radial play of the spindle;
- the drive assembly including a driver engaged to the head for rotation therewith;
- and
- the planetary gear assembly including plural satellite gears journaled on the driver and a planet gear meshed with the respective satellite gears, the drive shaft having a pinion gear portion engaged with the satellite gears, whereby rotation of the drive shaft causes the satellite gears to orbit about the planet gear and causes the driver and head to rotate.
Dependencies are inferred from the claim text.