Patent ID: 9113981
Filing Date: 2015-08-25
Classification: A61C,B05C

Abstract:
1. An ejection device comprising: a filling chamber formed in a cylindrical member for containing a material to be filled; a discharge portion having a discharge nozzle for pouring out the filled material to the exterior; a piston that pushes said filled material toward a front end side of said filling chamber to discharge the filled material through said discharge nozzle; and a main body for removably containing the cylindrical member that is forming said filling chamber, said main body and said discharge portion being integrally formed together, wherein said discharge portion is formed separately from said cylindrical member and in a manner to be fitted to an opening on one end side of said cylindrical member, said opening is formed in a manner to be connected to an extrusion port of a stock container which pours said material to be filled into said filling chamber as a filling port for filling said material to be filled, a gap between an outer periphery surface of the piston and an inner periphery surface of the cylindrical member is so formed as to maintain sealing to a degree that permits air to be released without letting the material to be filled escape, and after said discharge portion is arranged in said opening on the one end side and said material to be filled is poured into said filling chamber through said filling port while pushing the piston back with said material to be filled extruded from said filling chamber, said discharge portion is coupled to said opening of said cylindrical member.