JPS577770A - Truck structure for construction vehicle - Google Patents

Truck structure for construction vehicle

Info

Publication number
JPS577770A
JPS577770A JP8139380A JP8139380A JPS577770A JP S577770 A JPS577770 A JP S577770A JP 8139380 A JP8139380 A JP 8139380A JP 8139380 A JP8139380 A JP 8139380A JP S577770 A JPS577770 A JP S577770A
Authority
JP
Japan
Prior art keywords
hydraulic cylinder
wheel track
side frame
pin
direction change
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
JP8139380A
Other languages
Japanese (ja)
Other versions
JPS5858267B2 (en
Inventor
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 JP8139380A priority Critical patent/JPS5858267B2/en
Publication of JPS577770A publication Critical patent/JPS577770A/en
Publication of JPS5858267B2 publication Critical patent/JPS5858267B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Body Structure For Vehicles (AREA)

Abstract

PURPOSE: To facilitate expansion and contraction of wheel track and reinforce fastening portions by providing a wedgelike block and taper on an end of a beam and a side frame respectively.
CONSTITUTION: When a direction change-over valve 23 is in position B, pressurized oil in a source 22 of oil pressure is supplied to the rod side of a hydraulic cylinder 11 so that the hydraulic cylinder 11 is contracted to move a side frame 2 inward and reduce wheel track. When a pin 25 is inserted into bracket holes 20, 21 under such condition, a truck frame 1 can be coupled with the side frame 2. Further, to expand the wheel track, the direction change-over valve 23 needs merely to be placed in position A to extend the hydraulic cylinder 11 after removing the pin 25.
COPYRIGHT: (C)1982,JPO&Japio
JP8139380A 1980-06-18 1980-06-18 construction vehicle truck structure Expired JPS5858267B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8139380A JPS5858267B2 (en) 1980-06-18 1980-06-18 construction vehicle truck structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8139380A JPS5858267B2 (en) 1980-06-18 1980-06-18 construction vehicle truck structure

Publications (2)

Publication Number Publication Date
JPS577770A true JPS577770A (en) 1982-01-14
JPS5858267B2 JPS5858267B2 (en) 1983-12-24

Family

ID=13745050

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8139380A Expired JPS5858267B2 (en) 1980-06-18 1980-06-18 construction vehicle truck structure

Country Status (1)

Country Link
JP (1) JPS5858267B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681376A (en) * 1985-03-05 1987-07-21 Liebherr-Werk Telfs Ges M.B.H. Apparatus for tensioning a track chain of a tracklaying vehicle
US7654621B2 (en) * 2006-06-23 2010-02-02 Liebherr-Werk Nenzing Gmbh Tracked traveling gear with two drive units per chain
CN103273973A (en) * 2013-06-08 2013-09-04 徐工集团工程机械股份有限公司 Car frame structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4681376A (en) * 1985-03-05 1987-07-21 Liebherr-Werk Telfs Ges M.B.H. Apparatus for tensioning a track chain of a tracklaying vehicle
US7654621B2 (en) * 2006-06-23 2010-02-02 Liebherr-Werk Nenzing Gmbh Tracked traveling gear with two drive units per chain
CN103273973A (en) * 2013-06-08 2013-09-04 徐工集团工程机械股份有限公司 Car frame structure

Also Published As

Publication number Publication date
JPS5858267B2 (en) 1983-12-24

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