| 摘要 |
A joint (40) of the present embodiment is a device, provided between an air supply section and a nozzle having a hole through which air is ejected, for checking a position which the air to be ejected is to reach, the joint (40) including: a joint member (41) having (i) an inlet part (41b) through which the air flows in the joint member (41) and (ii) an outlet part (41a) through which the air flows out of the joint member (41); and a holder (43) having (a) an opening (43a) through which a light source section is provided and (b) a light source section provided space (43c) therein in which the light source section is held so as to emit light toward the outlet part (41a). It is thus possible to easily check a position which a fluid to be ejected is to reach, and possible to improve versatility. |
