| 摘要 |
PROBLEM TO BE SOLVED: To enable force-feeding of the remainder in a force-feeding pipe with water by connecting a washing pipe connecting portion to the force-feeding pipe so as to force-feed wash water into the washing pipe connecting portion after the stop of a ready mixed concrete force-feeding device. SOLUTION: On a fixing bracket 21 wherein a washing pipe connecting portion 23 and a ready mixed concrete pipe connecting portion 22 are respectively joined on one end side and the other end side, a selecting plate 27 joining a force-feeding pipe connecting portion 29 at one end portion side is connected. The selecting plate is rotatably journalled to the fixing bracket 21 with a shaft 24, and turned over about the shaft 24 to enable selectively joining between the force-feeding pipe connecting portion 29 and the ready mixed concrete pipe connecting portion 22 or the washing pipe connecting portion 23. The force-feeding pipe connecting portion 29 is connected to the washing pipe connecting portion 23 by turning over the selecting plate 27 to force-feed wash water.
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