JPH01169488U

JPH01169488U -

Info

Publication number: JPH01169488U
Application number: JP6739288U
Authority: JP
Priority date: 1988-05-20
Filing date: 1988-05-20
Publication date: 1989-11-29

Description

[Brief explanation of drawings]

第１図は本考案の実施例である要部の一部の側
面図、第２図はコンバインの側面図、第３図は要
部の一部の側面図、第４図は第１図の作動説明図
、第５図は他の例を示し、第６図はさらに別の実
施例を示し、第７図はその一部の平面図、第８図
は第６図の作動説明図を示す。１……クローラ、２……駆動スプロケツト、４
……転輪、５……アイドラ、６……トラツクフレ
ーム、７……油圧シリンダ、８ａ，８ｂ……平行
リンク、４ａ……第１転輪。 Fig. 1 is a side view of a part of the main part of an embodiment of the present invention, Fig. 2 is a side view of the combine harvester, Fig. 3 is a side view of a part of the main part, and Fig. 4 is a side view of a part of the main part of the combine harvester. Fig. 5 shows another example, Fig. 6 shows another embodiment, Fig. 7 is a plan view of a part thereof, and Fig. 8 shows an explanatory drawing of the operation of Fig. 6. . 1...Crawler, 2...Drive sprocket, 4
... Road wheel, 5 ... Idler, 6 ... Track frame, 7 ... Hydraulic cylinder, 8a, 8b ... Parallel link, 4a ... First road wheel.

Claims

[Scope of utility model registration request]

In a work vehicle in which both crawlers 1 on both sides of the lower part of the machine body are movable up and down, the drive bracket 2 that hangs the front upper part of the crawler 1 is mounted on an axis so that its position does not change, and each rotation on the ground side is A horizontal track frame 6 supporting the wheels 4 and the rear idler 5 is operatively connected to both parallel links 8a and 8b which are pivoted at the lower part of the fuselage and are actuated by telescopic members such as hydraulic cylinders 7,
The first roller 4a, which is located diagonally below the rear side of the drive sprocket 2 and is located at the frontmost of the rollers 4 during the ascent, is mounted on a shaft on the machine body in a fixed position. Crawler vertical movement device.