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US 9,807,930 B1Granted
Blade guard for a robot lawnmower
AssigneeiRobot Corporation
InventorsPeter J. Lydon, Brian W. Doughty
Life of this patent
Estimating the term…
Abstract
An autonomous robot lawnmower includes a chassis, a drive supporting the chassis above a lawn and configured to maneuver the robot lawnmower about the lawn, and a motorized lawn cutting assembly including one or more blades. The robot lawnmower further includes a first blade guard movably mounted to a first lateral side of the chassis and extending from the chassis toward the lawn, and a second blade guard movably mounted to a second lateral side of the chassis and extending from the chassis toward the lawn.
Claims24
An autonomous robot lawnmower comprising:
- a chassis;
- a drive supporting the chassis above a lawn and configured to maneuver the robot lawnmower about the lawn;
- a motorized lawn cutting assembly comprising one or more blades;
- a first blade guard spring-mounted to a first lateral side of the robot lawnmower and extending toward the lawn, the first blade guard being movable toward the one or more blades of the cutting assembly such that a portion of the first blade guard is positioned between a first portion of the one or more blades of the cutting assembly and the lawn when an inwardly directed force is applied to the first blade guard;
- and
- a second blade guard spring-mounted to a second lateral side of the robot lawnmower and extending toward the lawn, the second blade guard being movable toward the one or more blades of the cutting assembly such that a portion of the second blade guard is positioned between a second portion of the one or more blades of the cutting assembly and the lawn when an inwardly directed force is applied to the second blade guard.
3 more elements
Dependencies are inferred from the claim text.