Blade guard for a robot lawnmower
First Claim
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1. An autonomous robot lawnmower comprising:
- a drive supporting the robot lawnmower 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 movably mounted to a first lateral side of the robot lawnmower, positioned at least partially below a horizontal plane in which the one or more blades of the cutting assembly are located, and extending from the first lateral side of the robot lawnmower toward the lawn, the first blade guard being movable toward the one or more blades of the cutting assembly, wherein the first blade guard has a substantially planar front facing surface forming a non-perpendicular angle with a substantially planar outward facing surface of the first blade guard such that a rearward directed force on the front facing surface moves the first blade guard towards the one or more blades of the cutting assembly; and
a second blade guard movably mounted to a second lateral side of the robot lawnmower and extending from the second lateral side toward the lawn, the second blade guard being movable toward the one or more blades of the cutting assembly, wherein the second blade guard has a front facing surface forming a non-perpendicular angle with an outward facing surface of the second blade guard such that a rearward directed force on the front facing surface of the second blade guard moves the second blade guard towards the one or more blades of the cutting assembly.
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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.
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Citations
32 Claims
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1. An autonomous robot lawnmower comprising:
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a drive supporting the robot lawnmower 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 movably mounted to a first lateral side of the robot lawnmower, positioned at least partially below a horizontal plane in which the one or more blades of the cutting assembly are located, and extending from the first lateral side of the robot lawnmower toward the lawn, the first blade guard being movable toward the one or more blades of the cutting assembly, wherein the first blade guard has a substantially planar front facing surface forming a non-perpendicular angle with a substantially planar outward facing surface of the first blade guard such that a rearward directed force on the front facing surface moves the first blade guard towards the one or more blades of the cutting assembly; and a second blade guard movably mounted to a second lateral side of the robot lawnmower and extending from the second lateral side toward the lawn, the second blade guard being movable toward the one or more blades of the cutting assembly, wherein the second blade guard has a front facing surface forming a non-perpendicular angle with an outward facing surface of the second blade guard such that a rearward directed force on the front facing surface of the second blade guard moves the second blade guard towards the one or more blades of the cutting assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An autonomous robot lawnmower comprising:
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a drive supporting the robot lawnmower above a lawn and configured to maneuver the robot lawnmower about the lawn; a motorized lawn cutting assembly comprising one or more blades; and a blade guard movably mounted to a lateral side of the robot lawnmower, positioned at least partially below a horizontal plane in which the one or more blades of the cutting assembly are located, and extending from the lateral side of the robot lawnmower toward the lawn, the blade guard being movable toward the one or more blades of the cutting assembly; wherein the blade guard has a rear facing surface forming a non-perpendicular angle with an outward facing surface of the blade guard such that a forward directed force on the rear facing surface moves the blade guard towards the one or more blades of the cutting assembly. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An autonomous robot lawnmower comprising:
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a drive supporting the robot lawnmower above a lawn and configured to maneuver the robot lawnmower about the lawn; a motorized lawn cutting assembly comprising one or more blades; and a blade guard movably mounted to a lateral side of the robot lawnmower and extending from the lateral side of the robot lawnmower toward the lawn, the blade guard being movable toward the one or more blades of the cutting assembly; wherein the blade guard has a front facing surface angled away from an outward facing surface of the blade guard such that a rearward directed force on the front facing surface moves the blade guard towards the one or more blades of the cutting assembly; and wherein the blade guard is movable toward the one or more blades such that an inwardly directed force applied to the blade guard positions a portion of the blade guard between a portion of the one or more blades of the cutting assembly and the lawn and below a cutting circumference defined by a rotation of an outer tip of the one or more blades. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification