US 12,349,845 B2
Floor mopping system for an autonomous cleaning apparatus
Dylan Terntzer Ng, Singapore (SG); Mohan Rajesh Elara, Singapore (SG); Tushar Mohan, Singapore (SG); and Hoong Ching Lim, Singapore (SG)
Assigned to LIONSBOT INTERNATIONAL PTE. LTD., Singapore (SG)
Appl. No. 17/907,848
Filed by LIONSBOT INTERNATIONAL PTE. LTD., Singapore (SG)
PCT Filed Nov. 19, 2020, PCT No. PCT/SG2020/050675
§ 371(c)(1), (2) Date Aug. 29, 2022,
PCT Pub. No. WO2021/173074, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 10202001829Q (SG), filed on Feb. 28, 2020.
Prior Publication US 2023/0131655 A1, Apr. 27, 2023
Int. Cl. A47L 11/282 (2006.01); A47L 11/40 (2006.01)
CPC A47L 11/282 (2013.01) [A47L 11/4011 (2013.01); A47L 11/4016 (2013.01); A47L 11/4041 (2013.01); A47L 11/4044 (2013.01); A47L 11/4055 (2013.01); A47L 11/4069 (2013.01); A47L 11/4088 (2013.01); A47L 2201/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A floor mopping system for an autonomous cleaning apparatus, comprising a mop roller assembly including a mop roller and a drive mechanism for rotatably driving the mop roller about a longitudinal axis thereof, the mop roller assembly comprising a mop roller housing for accommodating the mop roller and the drive mechanism,
wherein the drive mechanism comprises a drive motor, a mop roller drive assembly and a belt drive assembly interconnecting the drive motor and mop roller drive assembly, the mon roller drive assembly being interconnected to the mop roller;
wherein the mop roller assembly is supported on a suspension assembly comprising an adaptive suspension mechanism for providing at least 3 degrees of movement for the mop roller assembly, the adaptive suspension system comprising one or more resilient supports interconnected to the mop roller housing for resiliently supporting the mop roller assembly;
wherein the adaptive suspension system comprises a support plate positioned in a generally parallel adjacent relationship to a top surface of the mop roller housing, the resilient support being located between the support plate and top surface thereof; and
wherein the resilient support comprises a spherical bearing block respectively mounted on the support plate and the top surface, a coil spring located between the support plate and the top surface, and a guide pin extending through the spherical bearing blocks and the coil spring for locating the coil spring in position, wherein the guide pin is angularly displaced and pivots within each spherical bearing blocks.