| 摘要 |
PROBLEM TO BE SOLVED: To provide a coating tool produced at low production cost and capable of properly adjusting the inner pressure of a coating liquid and stably discharging the coating liquid. SOLUTION: This coating tool comprises a tip 3 holding and supporting a spherical coating body 4 in a freely rotatable manner and a coating liquid tank 1 filled with a coating liquid and to which the tip 3 is connected. In this case, a circular recessed part 53 having an arc-like cross-section surface is formed in a small diameter part 51 in the rear end of the coating liquid tank 1 and a cylinder member 5 having a ventilation hole 52 in the diameter direction of the recessed part 53 is installed in the recessed part 53, an O-ring 6 for closing the ventilation hole 52 is fitted in the outer circumferential face of the small diameter part 51, and a piston member 7 having a through hole 71 is installed in the cylinder member 5. By pushing the piston member 7 forward while closing the through hole 71 with a finger tip, the pressurized air in the inside of the cylinder member 5 opens the O-ring 6 and enters the coating liquid tank 1 through the ventilation hole 52 and pressurizes the inside of the coating liquid tank 1. |
