Patent ID: 8387633
Filing Date: 2013-03-05
Classification: B08B,C23G,C25D

Abstract:
1. A pressure-resistant surface treatment equipment being sealed from atmospheric pressure so as to enable said pressure resistance, said equipment comprising: a pressure-resistant tank capable of being in a vacuum thereinside; a pressure-resistant casing, having a cylindrical shape and including a top wall at a top end thereof and a bottom wall at a bottom end thereof, inserting a lower end side thereof into the pressure-resistant tank while protruding an upper end side thereof outwardly from the pressure-resistant tank and capable of moving vertically by integrally connecting a vertical movement mechanism to adjacent the upper end side of the pressure-resistant casing; a rotation drive mechanism disposed adjacent the upper end side of the pressure-resistant casing so as to protrude outwardly from the pressure-resistant casing and the pressure-resistant tank; a drive shaft penetrating the pressure-resistant casing, and which is capable of rotating by connecting to the rotation drive mechanism; a pressure-resistant storage unit that receives a bottom portion of the drive shaft and that is fixed to a bottom portion of the pressure-resistant casing; a working mechanism transmitting driving force of the drive shaft to a connected first driven shaft of a rotation transmission mechanism stored in the pressure-resistant storage unit to a second driven shaft for performing a surface treatment operation; a pressure-resistant vacuum sealing member adjacent a first outside air communication portion positioned between the pressure-resistant tank and the pressure-resistant casing for maintaining air-tightness inside the pressure-resistant tank throughout vertical movement of the pressure-resistant casing, the pressure-resistant vacuum sealing member being disposed within a pressure-resistant housing portion adhered to the pressure-resistant tank on a top face thereof and adjacent the first air communication portion, said pressure-resistant vacuum sealing member being positioned against an outer circumferential face of the pressure-resistant casing and within the pressure-resistant housing portion so that an outer circumferential face of the pressure-resistant sealing member is in close contact with an inner circumferential face of pressure-resistant housing and an inner circumferential face of the pressure-resistant housing is in close contact with an outer circumferential face of the pressure-resistant casing; and a drive vacuum sealing member adjacent a second outside air communication portion positioned between the pressure-resistant casing and the rotation transmission mechanism for maintaining the air-tightness inside the pressure-resistant tank throughout rotation of the drive shaft, an inner circumferential face of the drive vacuum sealing member being in close contact with an outer circumferential surface of the second driven shaft one end of which is inserted within a drive housing portion storing the drive vacuum sealing member, the drive housing portion being disposed adjacent the second outside air communication portion, and an outer circumferential face of the drive vacuum sealing member being in close contact with an inner face of the drive housing portion.