| 摘要 |
<p>PURPOSE: To facilitate separately connecting while ensuring fluid-tightness in the case of connecting a pipe. CONSTITUTION: Between an L-shaped pipe 260 in a side of a washing nozzle unit 245 for an outliquid conveying part of a crossover rack 218 and a pipe 282 in the upstream on a wash water supply source side, a fluid passes through an inrush cylinder part 278 of a connecting pipe 274 from the upstream pipe 282 to flow into a seal pipe 284, to force feed the fluid to the L-shaped pipe 260 from the seal pipe 284. The fluid gives an internal pressure to the seal pipe 284, to diametrically spread the seal pipe 284 in swollen parts 288, 290 by this internal pressure, and the swollen parts 288, 290 are brought into pressure contact with an internal peripheral surface of a cylinder body 276 of the connecting pipe 274, to achieve fluid-tightness between the seal pipe 288 and the connecting pipe 274. In accordance with increasing higher a pressure of the force fed fluid, the internal pressure of the seal pipe 284 rises higher to increase higher also the fluid-tightness.</p> |
