Track kit for two wheeled balancing ground vehicle

Patent metadata

Field	Value
Publication number	US-9809264-B1
Application number	US-201514734817-A
Country	US
Kind code	B1
Filing date	Jul 20, 2015
Priority date	Jul 20, 2015
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

A dynamically balanced, tracked robot, which can switch between dynamically balanced (wheeled) operation and tracked operation, can include a body and at least one wheel rotatably mounted to the body. At least one strut can also be mounted to the body so that it extends therefrom, and an idler wheel can be fixed to the distal end of the strut. A track can be slipped over the wheel and that idler wheel, so that the track frictionally engages both the wheel and the idler wheel. The robot can have a defined vertical reference vector and a processor. The processor can have non-transitory written instructions that, when accomplished, cause the vertical reference vector to be parallel with a vector defined by the robot axis and the revised post-installation center of gravity, to continue to allow for dynamic balancing of the newly-tracked robot.

First claim

What is claimed is:

1. A dynamically balanced robot, said robot comprising:
a body;
at least one wheel rotatably mounted to said body on a body axis;
at least one strut extending from said body;
at least one idler wheel mounted to an end of said strut distal to said body;
a track slipped over said at least one wheel and said at least one idler wheel, said track frictionally engaging said at least one wheel and said at least one idler wheel; and,
said robot having a vertical reference vector and a revised center of gravity due to installation of said at least one strut, said at least one idler wheel and said track,
wherein said robot is switchable between wheeled operation and tracked operation during operation of the robot; and,
a processor, said processor containing non-transitory written instructions that, when accomplished, maintain said vertical reference vector parallel to a vector defined by said axis and said revised center of gravity during said wheeled operation;
wherein said end of said at least one strut distal to said body is u-shaped, said at least one idler wheel is fixed inside said end of said at least one strut distal to said body, and the robot further comprises at least one other idler wheel fixed outside said end of said at least one strut distal to said body.

2. A kit for converting a dynamically balanced wheeled robot to a dynamically balanced tracked robot, said dynamically balanced robot having a vertical reference vector, a body and at least one wheel mounted to an axis that is rotatably mounted to said body, said kit comprising:
at least one strut having a first end fixed to said body and a second end;
at least one idler wheel fixed to said second end;
a track slipped over said at least one wheel and said at least one idler wheel, said track frictionally engaging said at least one wheel and said at least one idler wheel;
said robot having a revised center of gravity and being switchable between wheeled operation and tracked operation during operation once said at least one strut, said at least one idler wheel and said at least one track are installed; and,
a processor, said processor containing non-transitory written instructions that, when accomplished, maintain said vertical reference vector parallel to a vector defined by said axis and said revised center of gravity during wheeled operation of said robot;
wherein said second end of said at least one strut is u-shaped, said at least one idler wheel is fixed inside said second end of said at least one strut, and the kit further comprises at least one other idler wheel fixed outside said second end of said at least one strut.

3. A method for converting a dynamically balanced, wheeled robot to a tracked robot, said robot having a chassis, an axis rotatably mounted to said chassis, at least one wheel mounted to said axis, a pre-installation center of gravity and a vertical reference vector, said method comprising the steps of:
A) providing a strut having a proximal end and a u-shaped distal end;
B) rotatably attaching at least one idler inside said u-shaped strut distal end and rotatably attaching at least one other idler outside said u-shaped strut distal end;
C) attaching said proximal end of said strut to the original chassis of said robot;
D) deflating the tires of said robot;
E) slipping a track over said strut and said wheel so that said track frictionally engages said tire and said idler, said robot having a revised center of gravity once said step E) is accomplished;
F) inflating said tires; and,
G) aligning said vertical reference vector that said vertical reference vector is coincident with a vector defined by said axis and said revised center of gravity, wherein said robot, such that said robot is switchable between wheeled operation and tracked operation during operation of said robot.

Assignees

• Talke Kurt A
• Burmeister Aaron Bruce
• Jones Anthony Douglas
• Us Navy

Inventors

• Talke Kurt A
• Burmeister Aaron Bruce
• Jones Anthony Douglas

Classifications

• B62D55/32

  Assembly, disassembly, repair or servicing of endless-track systems · CPC title

• B62D55/084 Primary

  Endless-track units or carriages mounted separably, adjustably or extensibly on vehicles, e.g. portable track units (B62D55/07 takes precedence) · CPC title

• B62D55/04 Primary

  with tracks and alternative ground wheels, e.g. changeable from endless track vehicle into wheeled vehicle and vice versa {(for multi-purpose tractors B62D49/0635)} · CPC title

• B62D55/14

  Arrangement, location, or adaptation of rollers · CPC title

• G05D1/0891

  specially adapted for land vehicles · CPC title