US 12,066,829 B2
Autonomous modular sweeper robot and dock system
Fei Xie, Palo Alto, CA (US); Dawei Ding, Palo Alto, CA (US); and Gregg Ratanaphanyarat, Palo Alto, CA (US)
Assigned to ViaBot Inc., Sunnyvale, CA (US)
Filed by ViaBot Inc., Sunnyvale, CA (US)
Filed on Apr. 1, 2021, as Appl. No. 17/220,547.
Claims priority of provisional application 63/087,179, filed on Oct. 3, 2020.
Prior Publication US 2022/0104674 A1, Apr. 7, 2022
Int. Cl. G05D 1/02 (2020.01); A47L 9/00 (2006.01); A47L 9/28 (2006.01); A47L 11/24 (2006.01); A47L 11/40 (2006.01); B60P 1/02 (2006.01); G05D 1/00 (2006.01); G05D 1/228 (2024.01); G05D 1/243 (2024.01); G05D 1/246 (2024.01); G05D 1/247 (2024.01); G05D 1/248 (2024.01); G05D 1/617 (2024.01); G05D 1/628 (2024.01); G05D 1/648 (2024.01); G05D 1/65 (2024.01); G05D 1/661 (2024.01)
CPC G05D 1/0225 (2013.01) [A47L 9/009 (2013.01); A47L 9/2852 (2013.01); A47L 9/2873 (2013.01); A47L 11/24 (2013.01); A47L 11/4011 (2013.01); A47L 11/4038 (2013.01); A47L 11/4061 (2013.01); A47L 11/4066 (2013.01); A47L 11/4072 (2013.01); B60P 1/02 (2013.01); G05D 1/0088 (2013.01); G05D 1/0214 (2013.01); G05D 1/0219 (2013.01); G05D 1/0223 (2013.01); G05D 1/0238 (2013.01); G05D 1/0251 (2013.01); G05D 1/0274 (2013.01); G05D 1/0278 (2013.01); G05D 1/028 (2013.01); G05D 1/228 (2024.01); G05D 1/2435 (2024.01); G05D 1/246 (2024.01); G05D 1/247 (2024.01); G05D 1/248 (2024.01); G05D 1/617 (2024.01); G05D 1/628 (2024.01); G05D 1/648 (2024.01); G05D 1/65 (2024.01); G05D 1/661 (2024.01); A47L 2201/022 (2013.01); A47L 2201/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An autonomous sweeper, comprising:
a sweeper module;
a robot chassis having a length along a pair of sides, a front side, a back side and a top side that define an interior space, the sweeper module is configured to fit within the interior space when the robot chassis moves over the sweeper module;
a pair of wheels disposed proximate to the back side of the robot chassis and a single wheel disposed proximate to the front side;
a pair of scissor lifts disposed along said pair of sides;
a lift frame attached to the pair of scissor lifts, the lift frame including alignment pegs that fit into corresponding alignment holes disposed on a top side of the sweeper module, wherein the lift frame is raised and lowered by said pair of scissor lifts;
wherein said scissor lifts assist in lifting the sweeper module while aligning said sweeper module to the robot chassis using said alignment pegs and alignment holes.