Scraper Device, As Well As Construction Machine

A construction machine, comprising:

• a machine frame;
• a milling drum connected to the machine frame to rotate about a milling drum axis;
• a scraper blade located behind the milling drum with reference to a direction of travel of the construction machine;
• an actuator assembly configured to lift the scraper blade relative to the machine frame through a vertical adjustment range and to swivel the scraper blade relative to the machine frame after the scraper blade is raised past the vertical adjustment range;
• and
• a retainer including a first locking part, a second locking part, and an automatic release, the first locking part extending parallel to the milling drum axis from a lateral edge of the scraper blade, the second locking part being associated with the machine frame, the first locking part interacting with the second locking part when the scraper blade is in the vertical adjustment range, the automatic release releasing the first locking part from the second locking part when the scraper blade is raised past the vertical adjustment range.

A construction machine, comprising:

• a machine frame;
• a milling drum connected to the machine frame to rotate about a milling drum axis;
• a scraper blade located behind the milling drum with reference to a direction of travel of the construction machine;
• an actuator assembly configured to lift the scraper blade relative to the machine frame through a vertical adjustment range and to swivel the scraper blade relative to the machine frame after the scraper blade is raised past the vertical adjustment range;
• and
• a retainer engaging the scraper blade when the scraper blade is in the vertical adjustment range, the retainer being automatically disengaged from the scraper blade when the scraper blade is above the vertical adjustment range.

A method of operating a scraper blade of a construction machine having a working drum supported from a machine frame, the method comprising:

• (a) adjusting an operating depth of the scraper blade within a vertical adjustment range;
• (b) moving the scraper blade to an open position to allow access to the working drum by pivoting the scraper blade about a pivotal axis relative to the machine frame after the scraper blade is raised past the vertical adjustment range;
• (c) retaining the scraper blade against pivoting motion during step (a);
• and
• (d) automatically releasing the scraper blade to allow pivoting motion when the scraper blade is raised past the vertical adjustment range.