US 11,839,904 B2
Cleaning apparatus
Hiroki Haremaki, Uozu (JP); Yoshiteru Kawamori, Itasca, IL (US); Taiki Matsui, Uozu (JP); and Kodai Nakazaki, Uozu (JP)
Assigned to SUGINO MACHINE LIMITED, Uozu (JP)
Filed by SUGINO MACHINE LIMITED, Uozu (JP)
Filed on May 25, 2021, as Appl. No. 17/329,628.
Claims priority of application No. 2020-097655 (JP), filed on Jun. 4, 2020; and application No. 2021-021993 (JP), filed on Feb. 15, 2021.
Prior Publication US 2021/0379628 A1, Dec. 9, 2021
Int. Cl. B08B 3/02 (2006.01); B08B 13/00 (2006.01); B25B 5/16 (2006.01); B08B 3/00 (2006.01)
CPC B08B 3/024 (2013.01) [B08B 13/00 (2013.01); B08B 3/006 (2013.01); B25B 5/16 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A cleaning apparatus, comprising:
a cleaning chamber;
a table rotation shaft having a hollow shape, the table rotation shaft configured to rotate about a first axis;
a first swivel fitting including
a first swivel housing rotatably disposed inside the table rotation shaft, and
a first swivel shaft disposed inside the first swivel housing, the first swivel shaft being restricted from rotating;
a table disposed inside the cleaning chamber and fixed to the table rotation shaft, the table on which a cleaning workpiece is configured to be placed;
a first motor configured to rotate the table rotation shaft;
a propeller shaft configured to rotate about a second axis that is parallel to the first axis;
a second swivel fitting including
a second swivel housing disposed at an end of the propeller shaft inside the cleaning chamber, the second swivel housing being restricted from rotating, and
a second swivel shaft disposed inside the second swivel housing, the second swivel shaft configured to rotate integrally with the propeller shaft; and
a first nozzle configured to rotate integrally with the second swivel shaft inside the cleaning chamber, the first nozzle configured to eject a first, cleaning fluid in a direction different from the second axis toward the cleaning workpiece,
a clamping device including a fluid cylinder, the clamping device disposed on the table;
a first, cleaning-fluid source;
a second, working-fluid source; and
a valve connected to the second, working-fluid source;
wherein the first swivel fitting includes
a first annular flow path disposed between the first swivel housing and the first swivel shaft,
a first flow path connecting the first annular flow path and the valve, the first flow path disposed in the first swivel shaft, and
a second flow path connecting the first annular flow path and the fluid cylinder, the second flow path disposed in the first swivel housing,
the second swivel fitting includes
a second annular flow path disposed between the second swivel housing and the second swivel shaft,
a third flow path connecting the second annular flow path and the first, cleaning-fluid source, the third flow path disposed in the second swivel housing, and
a fourth flow path connecting the second annular flow path and the first nozzle, the fourth flow path disposed in the second swivel shaft.