| 摘要 |
A rumble strip cutter machine having a nonoscillating main frame supported on round, ground-engaging operational support wheels with an oscillating moving frame generally coplanar within the main frame, moving slightly out of the common plane during oscillatory motion effected through crank action driven by an operational support wheel. A grinder brush is mounted central under the moving frame between the frame pivot pin and the crank connection. An engine is mounted over the brush also on the moving frame drives the brush and by its weight forces the brush into pavement below. For nonoperational transport at highway speeds the main frame is lifted off of its operational support wheels by a pair of hydraulically-actuated auxiliary wheels at the main frame rear end. The front operational wheels are lifting off of the ground by rotating and locking a trailer tongue on the main frame front end toward the frame.
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