Kabushiki Kaisha Komatsu Seisakusho

Yasuo Fujiwara

Haruhiko Umeda

Eiichi Muramoto

Nobuo Fujita

Kazuyuki Onohara

Hidemi Maeo

Keiji Bando

A sprocket assembly is disclosed for use as a drive or idler wheel for the endless tracks of a track type vehicle. Included is an inner rim rigidly and concentrically mounted to a hub and having a series of studs projecting radially outwardly therefrom at constant circumferential spacings. Each stud has fitted thereon a universal shock absorber having two or more concentric tubes of rigid material with a preloaded elastic member or members engaged therebetween. Disposed concentrically outwardly of the studded inner rim is an outer rim having a series of sprocket teeth formed on its circumference and defining an annular row of radial, inwardly open cavities to closely receive the respective shock absorbers on the studs of the inner rim. The shock absorbers damp the forces exerted between the inner and outer rims in all of the axial, radial, and rotational directions of the sprocket assembly. Preferably, a pair of annular end covers are rigidly mounted to the inner rim and are held against the opposite axial ends of the outer rim via elastic sealing members which are also effective to elastically bear the forces exerted between the inner and outer rims in the axial, radial, and rotational directions of the sprocket assembly.

Sprocket assembly for a track type vehicle

A track roller suspension apparatus for a track-type vehicle having a track frame and a track assembly mounted on the track frame, which includes a shaft rotatably mounted on the track frame, a first arm rotatably mounted on the shaft, a second arm rotatably mounted on the shaft, the first and second arms being arranged crossing each other, and a pair of track rollers each mounted on the respective arms. Resilient pads are disposed between the first and second arms to absorb shock loads.

Track roller suspension apparatus for a track-type vehicle

Growing community of inventors

Hirakata, Japan

Yasuo Fujiwara