BRUSHLESS DC DRIVE MECHANISM FOR SELD PROPELLED APLICANCE
First Claim
Patent Images
1. An upright cleaning device comprising:
- an actuator for receiving a user input;
an upper assembly to which the actuator is mounted;
a base assembly, wherein the upper assembly is pivotally mounted to the base assembly;
a rear wheel, mounted to the base assembly, configured to support the rear portion of the base assembly; and
a drive mechanism located in the base assembly having its major diameter in contact with a surface to be cleaned wherein the drive mechanism is configured to operate at one of;
full speed in one direction, no speed and full speed in the opposite direction, according to the relative position of the actuator.
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Accused Products
Abstract
An upright cleaning device comprising, an actuator for receiving a user input, an upper assembly, a base assembly, a rear wheel mounted to the base assembly, configured to support the rear portion of the base assembly, and a drive mechanism located in the base assembly. The actuator is mounted to upper assembly, and the upper assembly is pivotally mounted to the base assembly. The drive mechanism has its major diameter in contact with a surface to be cleaned, and the drive mechanism is configured to operate at one of: full speed in one direction, no speed and full speed in the opposite direction, according to the relative position of the actuator.
78 Citations
29 Claims
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1. An upright cleaning device comprising:
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an actuator for receiving a user input;
an upper assembly to which the actuator is mounted;
a base assembly, wherein the upper assembly is pivotally mounted to the base assembly;
a rear wheel, mounted to the base assembly, configured to support the rear portion of the base assembly; and
a drive mechanism located in the base assembly having its major diameter in contact with a surface to be cleaned wherein the drive mechanism is configured to operate at one of;
full speed in one direction, no speed and full speed in the opposite direction, according to the relative position of the actuator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A self-propelled upright cleaning device comprising:
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a nozzle base;
an upper housing section pivotally mounted to the nozzle base;
a handle actuator, for receiving a user input, mounted on the upper housing section;
a wheel for supporting the nozzle base; and
a drive mechanism located in the nozzle base and having its major diameter in contact with a surface to be cleaned wherein the drive mechanism comprises;
a stationary shaft, a stationary armature mounted on said shaft, a tubular motor housing rotatably mounted on said shaft, and a plurality of magnets mounted to an inner face of the tubular motor housing and spaced from said armature. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A self-propelled upright cleaning device comprising:
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a nozzle base, an upper housing section pivotally mounted to the nozzle base;
a handle actuator for receiving user input, said handle actuator being mounted on the upper housing section; and
,a drive mechanism located in the nozzle base and having its major diameter in contact with the surface to be cleaned, wherein the drive mechanism comprises;
a rotating motor shaft, a rotating armature mounted on said shaft, a stationary motor housing encircling at least a portion of the rotating shaft, a sun gear mounted on at least one end of the motor shaft, a planetary gear train comprising at least one planet gear engaging said sun gear; and
a ring gear engaging said at least one planet gear, said ring gear being connected to a sleeve comprising a driven surface of said drive mechanism. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A method of propelling an upright cleaning device comprising:
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sensing a user input from a handle actuator;
operating a drive mechanism located in a base assembly having its major diameter in contact with a surface to be cleaned wherein the drive mechanism is configured to operate at one of;
full speed in one direction, no speed and full speed in the opposite direction, according to sensed user input. - View Dependent Claims (27, 28, 29)
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Specification