JPS5559231A - Construction machine with horizontal push-out mechanism - Google Patents

Construction machine with horizontal push-out mechanism

Info

Publication number
JPS5559231A
JPS5559231A JP13003378A JP13003378A JPS5559231A JP S5559231 A JPS5559231 A JP S5559231A JP 13003378 A JP13003378 A JP 13003378A JP 13003378 A JP13003378 A JP 13003378A JP S5559231 A JPS5559231 A JP S5559231A
Authority
JP
Japan
Prior art keywords
bucket
change
cylinder
arm
boom
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
JP13003378A
Other languages
Japanese (ja)
Inventor
Takeshi Takahama
Tatsuo Nitta
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries 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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP13003378A priority Critical patent/JPS5559231A/en
Publication of JPS5559231A publication Critical patent/JPS5559231A/en
Pending legal-status Critical Current

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  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE: To make it possible to simply and easily push out horizontally bucket of construction machine having loading shovel and the like without impairing single operations of boom, arm, and bucket of the machine by additionally arranging change-over valve in hydraulic system.
CONSTITUTION: Boom operating cylinder 4 and arm operating cylinder 6 for loading shovel have their respective change-over valves 16 and 19 connected through pipes 17, 17' and 20, 20' respectively. Branch pipes 22, 22' and 23, 23' branched respectively from pipes 17, 17' and 20, 20' are all connected to bucket push-out change- over valve 24. The additionally arranged change-over valve 24 is functional to connected boom operating cylinder 4 and arm operating clinder 6 not only in series but also in such a way that when piston rod of cylinder 4 is extended, piston rod of cylinder 6 is extracted, and vice versa, therefore, by merely operating the change- over valve 24, bucket 7 of the machine can be horizontally pushed out without simultaneously moving boom 3 and arm 5 which are usully moved simultaneously with bucket 7 in prior art.
COPYRIGHT: (C)1980,JPO&Japio
JP13003378A 1978-10-24 1978-10-24 Construction machine with horizontal push-out mechanism Pending JPS5559231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13003378A JPS5559231A (en) 1978-10-24 1978-10-24 Construction machine with horizontal push-out mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13003378A JPS5559231A (en) 1978-10-24 1978-10-24 Construction machine with horizontal push-out mechanism

Publications (1)

Publication Number Publication Date
JPS5559231A true JPS5559231A (en) 1980-05-02

Family

ID=15024478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13003378A Pending JPS5559231A (en) 1978-10-24 1978-10-24 Construction machine with horizontal push-out mechanism

Country Status (1)

Country Link
JP (1) JPS5559231A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262904A (en) * 1975-11-20 1977-05-24 Komatsu Mfg Co Ltd Bucket controller
JPS5262903A (en) * 1975-11-20 1977-05-24 Komatsu Mfg Co Ltd Bucket controller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262904A (en) * 1975-11-20 1977-05-24 Komatsu Mfg Co Ltd Bucket controller
JPS5262903A (en) * 1975-11-20 1977-05-24 Komatsu Mfg Co Ltd Bucket controller

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