| 摘要 |
PROBLEM TO BE SOLVED: To provide a discharge width variable device where fluctuation of discharge pressure hardly occurs even if discharging width is changed and a coating device having the discharge width variable device.SOLUTION: A discharge width variable device 100 comprises: a hollow outer tube section 112 where the inside and the outside of the outer tube section 112 are connected through a discharge opening 116; and an inner tube section 130 adapted so that the inner tube section 130 can rotate in the outer tube section 112 along a circumferential wall of the outer tube section. The inner tube section 130 comprises a circumferential opening 138 where a fluid object can be introduced therein, and is formed in a circumferential wall 136 so as to communicate the inside with the outside of the inner tube section 130. The circumferential opening 138 is formed in such a manner that width of opening thereof changes in a circumferential direction of the inner tube section. The discharge width variable device 100 is adapted so that the device 100 can discharge from a communication region 148 the fluid object which is introduced into the inner tube section 130, the communication region 148 being formed when the circumferential opening 138 and the discharge opening 116 are overlapped with each other. |
