초록 ▼

A vehicle such as a combine harvester or the like includes a main frame, a track roller frame pivotally connected to the main frame, a drive wheel including a hydraulic drive motor having a housing and a rotatable shaft assembly, and an equalizer bar connected in a first embodiment to the shaft asse

A vehicle such as a combine harvester or the like includes a main frame, a track roller frame pivotally connected to the main frame, a drive wheel including a hydraulic drive motor having a housing and a rotatable shaft assembly, and an equalizer bar connected in a first embodiment to the shaft assembly by a coupling device including an anti-friction bearing and a trunnion member having a pair of pivot pins arranged along a substantially horizontal and longitudinally extending axis. In a second embodiment the equalizer bar is connected to the housing by another coupling device including a trunnion member having a pair of similarly oriented pivot pins. In each instance the transversely oriented equalizer bar is arranged along the transversely oriented central axis of the drive wheel, which provides a very stable 3-point frame suspension that is also rugged and economical and has a minimal tendency to collect mud or debris on the upper surfaces thereof in use.

대표청구항 ▼

A suspension structure for a vehicle including a main frame, a track-type undercarriage having a track roller fame, and pivot means for connecting the track roller frame to the main frame for pivotal movement about a first axis, comprising: the undercarriage including a wheel having inner and outer

A suspension structure for a vehicle including a main frame, a track-type undercarriage having a track roller fame, and pivot means for connecting the track roller frame to the main frame for pivotal movement about a first axis, comprising: the undercarriage including a wheel having inner and outer wheel portions and support means extending between the wheel portions for connecting the wheel to the track roller frame for rotation about a second axis; and a pivoting support apparatus including a cross member having a central portion and opposite distal ends, first coupling means for pivotally connecting the central portion of the cross member to the main frame, and second coupling means for coupling one of the distal ends of the cross member to the wheel substantially along the second axis while permitting the support means to maintain the second axis substantially parallel with the first axis.