US Patent No. 10,655,284


Patent No. 10,655,284
Issue Date May 19, 2020
Title Steerable System For Asphalt Milling Attachment
Inventorship J. Tron Haroldsen, Herriman, UT (US)
Matthew H. Taylor, Pleasant Grove, UT (US)
Assignee Asphalt Zipper, Inc., Pleasant Grove, UT (US)

Claim of US Patent No. 10,655,284

1. A steering mechanism to provide steering capability for both a host vehicle and for a milling attachment selectively separable from, but connectable to the host vehicle operated by an operator, the host vehicle providing propelling force to the milling attachment, the steering mechanism comprising:a support bar disposed forward of and connected to a milling attachment forward of a rotating cutting head the support bar further comprising a wheel pivotally mounted to the support bar via a pivot shaft;
a first steering actuator connected to the pivot shaft;
a second steering actuator connected to the pivot shaft;
a laser guidance system positioned on the milling attachment and directed to a tolerance target set to sense the vertical and horizontal position of the milling attachment relative to the tolerance target; and
milling attachment steering controls positionable for access and actuation by a steering operator observing the laser guidance system to steer the milling attachment and the host vehicle allowing the steering operator to maintain a horizontal and vertical compliance, independent of the host vehicle operator, the steering controls being connected to the first steering actuator and second steering actuator of the steering mechanism allowing a steering operator to control steering of both the host vehicle and the milling attachment by activating the first steering actuator and the second steering actuator of the milling attachment.