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US 2023/0264368 A1Published application
Throwable robot with improved drive system
AssigneeReconRobotics, Inc.
InventorAlex J. Kossett
Life of this patent
Estimating the term…
Abstract
A two wheeled throwable robot comprises an elongate chassis with two ends, a motor at each end, drive wheels connected to the motors, and a tail extending from the elongate chassis. The throwable robot includes a pair of torque limiting mechanisms, each torque limiting mechanism being operatively coupled between a motor and a drive wheel. Each torque limiting mechanism comprises a drive flange portion, a driven flange portion and a plurality of rollers. A spring element provides a ring force that biases the rollers toward the driven flange portion.
Claims21
1-20. (canceled)
A wheeled throwable surveillance robot comprising:
- a chassis supporting a plurality of wheels including at least one drive wheel;
- a motor supported by the chassis and operatively coupled to the drive wheel for selectively rotating the at least one drive wheel;
- and
- a torque limiting mechanism operatively coupled between the motor and the drive wheel, the torque limiting mechanism including a drive member and a driven member disposed along a common rotational axis and urged together by a spring bias, the torque limiting mechanism further comprising a plurality of rollers providing a releasable engagement with respect to the drive member and the driven member, the plurality of rollers disposed in a circular arrangement;
- the torque limiting mechanism allowing relative rotation between the drive member and the driven member when a torque differential is applied across the drive member and the driven member is equal to or greater than a predetermined value.
2 more elements
A wheeled robot weighing comprising:
- a pair of axially aligned drive wheels, each wheel having a maximum diameter;
- a chassis extending between the wheels, the chassis being disposed within a cylinder defined by the maximum diameters of the drive wheels;
- a pair of motors supported by the chassis, each motor being operatively coupled to one of the drive wheels;
- a torque limiting mechanism operatively coupled between each motor and the corresponding drive wheel, each torque limiting mechanism including a drive member and a driven member disposed along a common rotational axis,
- each torque limiting mechanism further comprising a plurality of rollers engaged with each of the drive member and the driven member, the rollers being disposed in a circular spaced arrangement about the rotational axis;
- each torque limiting mechanism allowing relative rotation between the drive member and the driven member when a torque differential is applied across the drive member and the driven member is equal to or greater than a slip torque.
3 more elements
A wheeled robot comprising:
- a plurality of wheels including at least one drive wheel, each of the plurality of wheels having a maximum diameter;
- a chassis supporting the drive wheel, the chassis not extending upwardly above the maximum diameter of the drive wheel, the chassis supporting a receiver, a transmitter and a video camera connected to the transmitter;
- a motor supported by the chassis and operatively coupled to the drive wheel for selectively rotating the at least one drive wheel;
- and
- a torque limiting mechanism operatively coupled between the motor and the drive wheel, the torque limiting mechanism including a drive member and a driven member disposed along a common rotational axis and urged together by a spring bias, the torque limiting mechanism further comprising a plurality of rollers providing a releasable engagement with respect to the drive member and the driven member, the plurality of rollers disposed in a circular arrangement;
- the torque limiting mechanism allowing relative rotation between the drive member and the driven member when a torque differential is applied across the drive member and the driven member is equal to or greater than a slip torque value;
- and
- a spring element providing the spring bias.
5 more elements
Dependencies are inferred from the claim text.