Patent ID: 8641321
Filing Date: 2014-02-04
Classification: E01C,G05G

Abstract:
1. Road finishing machine comprising a screed having at least one hydraulically movable extendable screed part, an electronic control device, and at least one control panel linked to the control device the control panel having a control that can be manually operated by at least one operator of the road finishing machine for adjusting the control current for a proportional magnet of at least one proportional control valve and wherein the control comprises an actuation instrument that is manually movable between a zero position and a maximum position to produce a noticeable increase in kinetic resistance that can be overcome by an increase in the exerted operation force generated at least once within the movement path of the actuation instrument, the increase at least noticeably signaling either reaching a predetermined speed or a transition between two different speeds of the movement actuator of the extendable screed part.