JPH0359288U

JPH0359288U -

Info

Publication number: JPH0359288U
Application number: JP12002289U
Authority: JP
Priority date: 1989-10-14
Filing date: 1989-10-14
Publication date: 1991-06-11

Description

[Brief explanation of drawings]

第１図はこの考案にかかる保護装置をそなえた
履帯調整装置を示す側面図、第２図は第１図のＢ
−Ｂより見た断面図、第３図は従来技術の履帯調
整装置をそなえた下部走行体の一部切欠き側面図
、第４図は第３図のＡ−Ａより見た従来技術履帯
調整装置の断面図である。１，２３……履帯調整装置、７，２４……ヨー
ク、８，２５……シリンダ体、９，２６……グリ
ースシリンダ、１０，２７……ロツド、１２……
スプリング、１７，２９……センタボス、２０，
３０……ボス、２２……保護装置、３１……ベロ
ー部材、３２……前側取付部、３３……後側取付
部。 Figure 1 is a side view showing a crawler track adjustment device equipped with a protection device according to this invention, and Figure 2 is B of Figure 1.
3 is a partially cutaway side view of an undercarriage equipped with a conventional crawler track adjustment device, and FIG. 4 is a sectional view taken from A-A in FIG. 3. FIG. 2 is a cross-sectional view of the device. 1, 23... Crawler belt adjustment device, 7, 24... Yoke, 8, 25... Cylinder body, 9, 26... Grease cylinder, 10, 27... Rod, 12...
Spring, 17, 29...Center boss, 20,
30... Boss, 22... Protective device, 31... Bellows member, 32... Front attachment part, 33... Rear attachment part.

Claims

[Scope of utility model registration request]

Insert the rod at the front of the cylinder body into the center boss hole of the yoke, provide a locking part to prevent the yoke from coming off at the tip of the rod, and compress the spring between the spring seat of the cylinder body and the spring seat of the yoke shoulder. In the installed crawler track adjustment device of the undercarriage, a water-resistant and corrosion-resistant cylindrical bellows member surrounds the spring of the track adjustment device, and the front and rear mounting portions of the bellows member are connected to the center boss of the yoke, respectively. A protection device for a crawler track adjustment device, characterized in that the protection device is configured to be watertightly attached to the outer periphery of each boss of a cylinder body.