JPS6444388A - Caterpillar tractor - Google Patents
Caterpillar tractorInfo
- Publication number
- JPS6444388A JPS6444388A JP20070887A JP20070887A JPS6444388A JP S6444388 A JPS6444388 A JP S6444388A JP 20070887 A JP20070887 A JP 20070887A JP 20070887 A JP20070887 A JP 20070887A JP S6444388 A JPS6444388 A JP S6444388A
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- cylinder
- pressing
- turning
- roughness
- 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
Links
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
PURPOSE:To absorb the external force caused by the roughness of a road surface by vertically movable supporting a wheel pressing a crawler center section in its turning and also energizing it downward with energizing means. CONSTITUTION:The piston rod 4 of a cylinder 3 is connected to a rotatable wheel 6 through a link 5, which is swingable around a fulcrum 5a in E and F directions, and the wheel 6 is vertically moved along with the swing of the link 5. The cylinder 3 is provided with a spring 22, by which the rod 4 is energized, the wheel 6 is energized in the pressing direction. In its turning hydraulic oil is supplied in the cylinder 3 to press the piston rod 4 for pressing the wheel 6 in the direction of A, and as a result a crawler center section is pressed, which facilitates its turning. When external force, is applied the wheel 6 is vertically swung maintaining an earthing state constant by means of the spring 22, which absorbs the roughness of the road surface for making steering stability excellent.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20070887A JPS6444388A (en) | 1987-08-10 | 1987-08-10 | Caterpillar tractor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20070887A JPS6444388A (en) | 1987-08-10 | 1987-08-10 | Caterpillar tractor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6444388A true JPS6444388A (en) | 1989-02-16 |
Family
ID=16428901
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20070887A Pending JPS6444388A (en) | 1987-08-10 | 1987-08-10 | Caterpillar tractor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6444388A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5066072A (en) * | 1989-08-23 | 1991-11-19 | Jidosha Kiki Co., Ltd. | Hydraulic brake pressure control valve |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4841003B1 (en) * | 1970-09-18 | 1973-12-04 | ||
JPS6131976B2 (en) * | 1974-07-04 | 1986-07-24 | Sorensen Eyunaaru |
-
1987
- 1987-08-10 JP JP20070887A patent/JPS6444388A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4841003B1 (en) * | 1970-09-18 | 1973-12-04 | ||
JPS6131976B2 (en) * | 1974-07-04 | 1986-07-24 | Sorensen Eyunaaru |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5066072A (en) * | 1989-08-23 | 1991-11-19 | Jidosha Kiki Co., Ltd. | Hydraulic brake pressure control valve |
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