Blade tilt assembly for a front end loader
OwnerFrank P. Staben, Jr.inventor
Life of this patent
Estimating the term…
Abstract
An improved blade tilt assembly is provided for adjusting the lateral tilt of a scoop or bucket mounted on a front end loader. The front end loader normally includes frame arms supporting the scoop at the front of the vehicle, in combination with at least one hydraulic lift unit and an hydraulic fore-aft pitch control unit. The blade tilt assembly includes a pair of hydraulic tilt units of reinforced construction, and connected between the frame arms and the scoop respectively at laterally opposite ends thereof. The tilt units are operated in tandem to respectively raise and lower the opposite ends of the scoop in substantially equal increments, thereby adjusting the lateral tilt angel of the scoop.
Claims11
A blade tilt assembly for a front end loader having a lift frame adapted for connection to a work attachment and including lift means for operating the lift frame to raise and lower the work attachment, said blade tilt assembly comprising:
- a pair of hydraulic tilt units each including a ram slidably mounted within a cylinder housing and respectively disposable generally at laterally opposite ends of the work attachment;
- means for connecting each of said tilt units between the lift frame and the work attachment whereby displacement of said ram within said cylinder housing of each of said tilt units displaces the work attachment relative to the lift frame, said connecting means comprising coaxially aligned and generally laterally extending link pin means for pivotally connecting said tilt units to the lift frame, and trunnion bearing means oriented to extend generally perpendicular to said link means, said trunnion bearing means for pivotally connecting said tilt units to the work attachment;
- and
- control means for supplying hydraulic fluid under pressure to said tilt units to displace the rams of said tilt units in substantially equal increments in opposite directions.
A blade tilt assembly for a front end loader having a lift frame including a pair of lift arms with front ends disposed generally at a front end of the loader, said lift arms being adapted for connection to a work attachment, and means for operating the lift frame to raise and lower the work attachment, said blade tilt assembly comprising:
- a pair of hydraulic tilt units connectable respectively between the work attachment and the pair of lift arms, said hydraulic tilt units each including a ram slidably mounted within a cylinder housing and said hydraulic tilt units being disposable generally at opposite ends of the work attachment;
- means for connecting said tilt units between the work attachment and a respective one of the lift arms, whereby displacement of said rams within said housings displaces the work attachment relative to said rams, said connecting means comprising coaxially aligned and generally axially extending link pin means for pivotally connecting said tilt units to said lift arms, and trunnion bearing means oriented to extend generally perpendicular to said link pin means, said trunnion bearing means for pivotally connecting said tilt units to the work attachment;
- control means for supplying a hydraulic fluid under pressure to said tilt units to displace said rams within said housings;
- said rams of said tilt units each having a piston mounted generally at one end thereof within the respective cylinder housing, and extending from said piston to an opposite end disposed outside said respective cylinder housing, and further including an elongated sleeve bearing within said respective cylinder housing for slidably supporting a major portion of the length of said ram.
A blade tilt assembly for a front end loader having a lift frame including a pair of lift arms with front ends disposed generally at a front end of the loader, said lift arms being adapted for connection to a work attachment, and means for operating the lift frame to raise and lower the work attachment, said blade tilt assembly comprising:
- a pair of hydraulic tilt units connectable respectively between the work attachment and the pair of lift arms;
- said hydraulic tilt units each including a ram slidably mounted within a cylinder housing and said hydraulic tilt units being disposable generally at opposite ends of the work attachment;
- means for connecting said tilt units between the work attachment and a respective one of said lift arms, whereby displacement of said rams within said housings displaces the work attachment relative to said rams, said connecting means comprising coaxially aligned and generally axially extending link pin means for pivotally connecting said tilt units to the lift frame, and trunnion bearing means oriented to extend generally perpendicular to said link pin means, said trunnion bearing means for pivotally connecting said tilt units to the work attachment;
- and
- control means for supplying hydraulic fluid under pressure to said tilt units to displace the rams of said tilt units in substantially equal increments in opposite directions;
- said rams of said tilt units each having a piston mounted generally at one end thereof within said housing and said ram extending from said piston to an opposite end disposed outside said cylinder housing, and further including an elongated sleeve bearing within said cylinder housing for slidably supporting a major portion of the length of said ram.
Dependencies are inferred from the claim text.