JPS577770A - Truck structure for construction vehicle - Google Patents
Truck structure for construction vehicleInfo
- 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
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
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)
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 |
-
1980
- 1980-06-18 JP JP8139380A patent/JPS5858267B2/en not_active Expired
Cited By (3)
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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