US 12,262,856 B2
Manual cleaning tool
Hiroshi Ono, Osaka (JP); Yusuke Hino, Osaka (JP); Tsutomu Sato, Osaka (JP); Rio Otsuru, Osaka (JP); Keiko Nishimura, Osaka (JP); and Ryo Iriguchi, Osaka (JP)
Assigned to Nippon Seal Co., Ltd., Osaka (JP)
Appl. No. 17/296,102
Filed by Nippon Seal Co., Ltd., Osaka (JP)
PCT Filed May 14, 2020, PCT No. PCT/JP2020/019222
§ 371(c)(1), (2) Date May 21, 2021,
PCT Pub. No. WO2020/230841, PCT Pub. Date Nov. 19, 2020.
Claims priority of application No. 2019-092564 (JP), filed on May 16, 2019.
Prior Publication US 2022/0007911 A1, Jan. 13, 2022
Int. Cl. A47L 11/22 (2006.01); A47L 11/33 (2006.01)
CPC A47L 11/22 (2013.01) [A47L 11/33 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A manual cleaning tool, comprising:
a casing including a frame main body having a right wall plate and a left wall plate arranged in a left-and-right direction and a front wall plate and a rear wall plate arranged in a front-and-rear direction, which define an internal space, the casing having a discharge port defined by upper ends of the wall plates in an up-and-down direction;
a pair of roller wheels pivotably mounted to the frame main body;
a roller brush provided inside the casing;
a lid pivotably mounted to the frame main body and configured to open and close the discharge port, and
an open-lid holder configured to hold the lid in an open state of the discharge port,
wherein the roller brush includes:
a brush shaft; and
a cleaning brush cloth including a foundation cloth and cut piles raised from a cloth front surface of the foundation cloth wound helically around a shaft outer-peripheral surface of the brush shaft,
wherein the roller brush is provided inside the casing with the shaft center line of the brush shaft being matched with the left-and-right direction and part of the cut piles of the cleaning brush cloth projecting beyond the lower ends of the wall plates,
wherein the the shaft ends of the brush shaft are pivotably supported by the frame main body,
wherein the lid includes:
a right lid plate and a left lid plate arranged in the left-and-right direction; and
an upper lid plate arranged between the right lid plate and the left lid plate and formed integrally with the right lid plate and the left lid plate,
wherein the right lid plate is located on an outer side of the right wall plate, and is pivotably supported in the right wall plate,
wherein the left lid plate is located on an outer side of the left wall plate, and is pivotably supported in the left wall plate,
wherein the lid is pivotably mounted to the frame main body,
wherein the open-lid lid holder includes:
a stopping protrusion formed to project from the right wall plate toward the right lid plate; and
a guide protrusion formed to project from the right lid plate,
wherein, when the lid is rotated from a closed state and in a direction of opening the discharge port, the guide protrusion passes over the stopping protrusion and is brought into abutment against the stopping protrusion, and maintains the open state of the lid.