Omni-directional treads

Patent metadata

Field	Value
Publication number	US-10093367-B2
Application number	US-201615230232-A
Country	US
Kind code	B2
Filing date	Aug 5, 2016
Priority date	Mar 21, 2014
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A robotic device includes multiple sprockets coupled to a tread module. The robotic device also includes multiple first drive gears coupled to a drive shaft gear of the tread module. The robotic device further includes a second drive gear coupled to a carousel gear of the tread module.

First claim

What is claimed is:

1. A non-transitory computer-readable medium having program code recorded thereon for operation of a robotic device, the program code comprising:
program code to control a first plurality of drive gears to drive a first plurality of drive shafts that move a first tread of the robotic device in a forward direction or a reverse direction; and
program code to control a second plurality of drive gears to drive a first plurality of carousel gears that rotate the first tread in at least one orthogonal direction relative to the forward direction and the reverse direction.

2. The non-transitory computer-readable medium of claim 1 , in which the program code further comprises:
program code to move the first tread by rotating a plurality of sprockets coupled to a tread module, encompassed by the first tread, in the forward direction or the reverse direction with one of the first plurality of drive gears driving one of the first plurality of drive shafts; and
program code to move the robotic device in the forward direction or the reverse direction with the first tread.

3. The non-transitory computer-readable medium of claim 1 , in which the program code further comprises:
program code to rotate a carousel coupled to one of the first plurality of carousel gears by rotation of one of the first plurality of carousel gears; and
program code to rotate the first tread in the at least one orthogonal direction relative to the forward direction and the reverse direction based on the rotation of the carousel.

4. The non-transitory computer-readable medium of claim 1 , in which the program code further comprises program code to control a third plurality of drive gears to drive a second plurality of drive shafts that move a second tread of the robotic device in the forward direction or the reverse direction.

5. The non-transitory computer-readable medium of claim 4 , in which the program code further comprises program code to control the third plurality of drive gears such that the second tread moves in a same direction as the first tread.

6. The non-transitory computer-readable medium of claim 1 , in which the program code further comprises program code to control a fourth plurality of drive gears to drive a second plurality of carousel gears that rotate a second tread of the robotic device in at least one orthogonal direction relative to the forward direction and the reverse direction.

7. The non-transitory computer-readable medium of claim 6 , in which the program code further comprises program code to control the fourth plurality of drive gears to drive the second plurality of carousel gears such that the second tread rotates in a same direction as the first tread.

8. The non-transitory computer-readable medium of claim 6 , in which the program code further comprises program code to control the fourth plurality of drive gears to drive the second plurality of carousel gears such that the second tread rotates in at least one orthogonal direction relative to movement of the first tread.

9. The non-transitory computer-readable medium of claim 1 , in which the first plurality of drive gears, the first plurality of drive shafts, the second plurality of drive gears, and the first plurality of carousel gears are encompassed by the first tread.

Assignees

• Qualcomm Inc

Inventors

• Hutson Donald Bolden

Classifications

• B62D15/00

  Steering not otherwise provided for · CPC title

• B62D55/18

  Tracks (self-cleaning track links B62D55/088) · CPC title

• G05D17/02

  characterised by the use of electric means · CPC title

• B62D11/00

  Steering non-deflectable wheels; Steering endless tracks or the like · CPC title

• B62D55/125 Primary

  Final drives · CPC title