Title:
CONCRETE PUMPING DEVICE
Document Type and Number:
Japanese Patent JP2023022474
Kind Code:
A
Abstract:
To provide a concrete pumping device capable of feeding a concrete material to a pipe by alternately smoothly connecting a connection pipe in a hopper to two pumps, even when a coarse aggregate in a concrete material is large.SOLUTION: A concrete pumping device 1 comprises a pipe 20 extending from a hopper 10 to the outside, and two pumps 30A, 30B having a cylinder 31 opening to the inner surface of the hopper 10. The concrete pumping device 1 also comprises a connection pipe 40 whose front end is connected to the pipe 20, and a switching device 50 that alternately connects the rear end part of the connection pipe 40 to the end parts of the cylinders 31, 31. A sheet 70 that is a plate-like elastic body is arranged on the inner surface of the hopper 10 below a moving area A of the connection pipe 40.SELECTED DRAWING: Figure 3
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Inventors:
KOBAYASHI HIDEYUKI
FUSE JUN
KOSUGE NORIMASA
KUROKI HIROSHI
FUSE JUN
KOSUGE NORIMASA
KUROKI HIROSHI
Application Number:
JP2021127371A
Publication Date:
February 15, 2023
Filing Date:
August 03, 2021
Export Citation:
Assignee:
AKTIO CORP
TAISEI CORP
TAISEI CORP
International Classes:
F04B15/02; E02B7/00; E04G21/02
Attorney, Agent or Firm:
Patent Attorney Corporation Isono International Patent and Trademark Office