IP Library Granted Patent US 10,458,078
Granted Patent B2
US 10,458,078 · App. 15/880,165 · Granted Oct 29, 2019

Road milling machine and method for measuring the milling depth

Inventors: Christian Berning (Zulpich, DE); Dieter Simons (Buchholz, DE)
Assignee: Wirtgen GmbH
E01C23/088E01C23/127G01B5/18
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Quick Facts
Patent No.
US 10,458,078
App. No.
15/880,165
Granted
Oct 29, 2019
Kind
B2
Abstract

A method is provided for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller. The method includes measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track.

Claims (7)

1. A method for measuring the milling depth of a road milling machine, the machine being operative to mill a ground surface with a milling roller lowered to a milling depth to create a milling track, the machine including at least one side plate located to at least one side of the milling roller to engage an untreated ground surface, and the machine including a stripping plate operative to be lowered onto the milling track generated by the milling roller, the method comprising:

measuring the milling depth of the milling track, the measuring including detecting a measurement value of a ground engaging sensor engaging the milling track; and

correcting the measured milling depth in dependence on an offset distance between the ground engaging sensor engaging the milling track and a rotational axis of the milling roller, when the machine frame does not extend parallel to the untreated ground surface.

2. The method of claim 1 , wherein:

the measuring step further includes detecting another measurement value of another ground engaging sensor engaging the untreated ground surface, and wherein both measurement values are detected in relation to a machine frame of the road milling machine.

3. The method of claim 1 , wherein:

the measuring step further includes detecting the measurement value of the ground engaging sensor engaging the milling track in relation to another ground engaging sensor engaging the untreated ground surface.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2021
From: WIRTGEN GMBH
To: WIRTGEN AMERICA, INC.
Reel/Frame 056901/0837 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 14, 2018
From: BERNING, CHRISTIAN; SIMONS, DIETER
To: WIRTGEN GMBH
Reel/Frame 045544/0243 →
Priority Claims (1)
DE 10 2006 062 129 · Dec 22, 2006 · national
Continuity (5)
Continuation 15376023 · Dec 12, 2016
Continuation 14341191 · Jul 25, 2014
Continuation 13557729 · Jul 25, 2012
Division 12003094 · Dec 20, 2007
Related Publication 20180282954A1 · Oct 4, 2018