JPS5297407A - Switch valve apparatus for concrete pump - Google Patents

Switch valve apparatus for concrete pump

Info

Publication number
JPS5297407A
JPS5297407A JP1606777A JP1606777A JPS5297407A JP S5297407 A JPS5297407 A JP S5297407A JP 1606777 A JP1606777 A JP 1606777A JP 1606777 A JP1606777 A JP 1606777A JP S5297407 A JPS5297407 A JP S5297407A
Authority
JP
Japan
Prior art keywords
switch valve
valve apparatus
concrete pump
concrete
clogging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1606777A
Other languages
Japanese (ja)
Inventor
Keijiro Tsuji
Hiroo Okumura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP1606777A priority Critical patent/JPS5297407A/en
Publication of JPS5297407A publication Critical patent/JPS5297407A/en
Pending legal-status Critical Current

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  • Reciprocating Pumps (AREA)

Abstract

PURPOSE: To certainly prevent the clogging of concrete by forming the passage from the end of the concrete cylinder to the Y-shaped tube in the tapered state having the decreasing open area.
COPYRIGHT: (C)1977,JPO&Japio
JP1606777A 1977-02-18 1977-02-18 Switch valve apparatus for concrete pump Pending JPS5297407A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1606777A JPS5297407A (en) 1977-02-18 1977-02-18 Switch valve apparatus for concrete pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1606777A JPS5297407A (en) 1977-02-18 1977-02-18 Switch valve apparatus for concrete pump

Publications (1)

Publication Number Publication Date
JPS5297407A true JPS5297407A (en) 1977-08-16

Family

ID=11906214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1606777A Pending JPS5297407A (en) 1977-02-18 1977-02-18 Switch valve apparatus for concrete pump

Country Status (1)

Country Link
JP (1) JPS5297407A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0381580A (en) * 1989-08-23 1991-04-05 Marushin Shokai:Kk Pump for forced feed of ready-mixed concrete

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0381580A (en) * 1989-08-23 1991-04-05 Marushin Shokai:Kk Pump for forced feed of ready-mixed concrete

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