JPS57116836A - Hydraulic shovel - Google Patents

Hydraulic shovel

Info

Publication number
JPS57116836A
JPS57116836A JP161581A JP161581A JPS57116836A JP S57116836 A JPS57116836 A JP S57116836A JP 161581 A JP161581 A JP 161581A JP 161581 A JP161581 A JP 161581A JP S57116836 A JPS57116836 A JP S57116836A
Authority
JP
Japan
Prior art keywords
arm
level cylinder
cylinder
point
hydraulic shovel
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.)
Granted
Application number
JP161581A
Other languages
Japanese (ja)
Other versions
JPS6237184B2 (en
Inventor
Kiyonobu Hirose
Takeshi Furuichi
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.)
Hitachi Construction Machinery Co Ltd
Original Assignee
Hitachi Construction Machinery Co 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 Hitachi Construction Machinery Co Ltd filed Critical Hitachi Construction Machinery Co Ltd
Priority to JP161581A priority Critical patent/JPS57116836A/en
Publication of JPS57116836A publication Critical patent/JPS57116836A/en
Publication of JPS6237184B2 publication Critical patent/JPS6237184B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE: To increase the tortional rigidity of the arm of a horizontal push type hydraulic shovel as well as to reduce the weight of the arm by providing a close structure with a concavity for the arm in such a way as to avoid the collision of the level cylinder and the arm cylinder of the shovel.
CONSTITUTION: The arm 28 of a bucket horizontal push type hydraulic shovel, having a close structure using upper, lower, and outside plates, is provided with a concaved portion 31 on its down side to which a level cylinder 9 and an arm cylinder are attached in such a way as to avoid their mutual collision. Also, the distance between the fitting point 14 of the boom of the level cylinder 9 and the rotary support point 10 of the arm 28 is made shorter than that between the arm fitting point 15 of the level cylinder 9 and the rotary fulcrum point 10 of the arm. Also, the boom fitting point 14 of the level cylinder 9 is positioned backwards from the vertical position of the arm 28 and also fforwards from the connecting line between the arm fitting point 15 of the level cylinder 9 and the rotary fulcrum point 10 of the arm.
COPYRIGHT: (C)1982,JPO&Japio
JP161581A 1981-01-10 1981-01-10 Hydraulic shovel Granted JPS57116836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP161581A JPS57116836A (en) 1981-01-10 1981-01-10 Hydraulic shovel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP161581A JPS57116836A (en) 1981-01-10 1981-01-10 Hydraulic shovel

Publications (2)

Publication Number Publication Date
JPS57116836A true JPS57116836A (en) 1982-07-21
JPS6237184B2 JPS6237184B2 (en) 1987-08-11

Family

ID=11506413

Family Applications (1)

Application Number Title Priority Date Filing Date
JP161581A Granted JPS57116836A (en) 1981-01-10 1981-01-10 Hydraulic shovel

Country Status (1)

Country Link
JP (1) JPS57116836A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62185925A (en) * 1986-02-12 1987-08-14 Hitachi Constr Mach Co Ltd Boom structure of oil-pressure shovel
JPS62169048U (en) * 1986-03-18 1987-10-27

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62185925A (en) * 1986-02-12 1987-08-14 Hitachi Constr Mach Co Ltd Boom structure of oil-pressure shovel
JPH0428056B2 (en) * 1986-02-12 1992-05-13 Hitachi Construction Machinery
JPS62169048U (en) * 1986-03-18 1987-10-27

Also Published As

Publication number Publication date
JPS6237184B2 (en) 1987-08-11

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