Title:
PISTON TYPE CONCRETE PUMP
Document Type and Number:
Japanese Patent JP2018105260
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a piston type concrete pump capable of increasing a hydraulic oil amount to a pump cylinder, and having an advantage even of maintenance including hose replacement work.SOLUTION: A pair of pump drive cylinders 23, 24 driven in a reverse phase manner by hydraulic oil from a hydraulic pump each includes: a drive piston reciprocatively moved; two hydraulic oil chambers configured to reciprocatively move the drive piston; and ports 231a, 231b, 241a, 241b, ... for connection of two hoses, which are configured to supply/discharge hydraulic oil to/from the two hydraulic oil chambers. A set of ports 231a, 231b, 241a, 241b, ... is positioned above a reference line L passing through axial cores X1, X2 of the pump drive cylinders 23, 24.SELECTED DRAWING: Figure 5
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Inventors:
MITSUI MINORU
SUDA TOMOYUKI
KATAOKA SOTA
SUDA TOMOYUKI
KATAOKA SOTA
Application Number:
JP2016253955A
Publication Date:
July 05, 2018
Filing Date:
December 27, 2016
Export Citation:
Assignee:
KYOKUTO KAIHATSU KOGYO CO
International Classes:
F04B15/02
Attorney, Agent or Firm:
Noboru Fujimoto
Hiroaki Nakatani
Akira Kitada
Hiroaki Nakatani
Akira Kitada
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