Patent ID: 7628858

Claim:
A coating film forming apparatus, which applies a paint to an outer circumferential face of an object to be coated to form a coating film, the coating film forming apparatus, comprising: a retention section which retains the object to be coated in a state in which the outer circumferential face is exposed and in which an axial core of the object to be coated is in parallel with a vertical direction; an applying nozzle formed in an annular shape, arranged to oppose the outer circumferential face and to have an interval therebetween, and coaxially arranged with the object to be coated retained by the retention section, the applying nozzle having a first slit which discharges the paint throughout a whole circumference of an inner circumferential face thereof; a movement section which relatively moves the retention section and the applying nozzle along the axial core; a paint supply section which supplies the paint to the applying nozzle; and a gas discharger including: a gas supply section which supplies a gas; a gas storage room which stores the gas supplied from the gas supply section; and a second slit which discharges the gas in the gas storage room towards the paint discharged in a conic shape from the first slit, evenly throughout a whole circumference in a circumferential direction of the discharged paint, to change a discharging direction of the paint.