Side loader for fork lift trucks
AssigneeMissouri Research Laboratories, Inc.
InventorsRaymond H. Fiehler, Thomas E. Quick, Kenneth A. Frees
Life of this patent
Estimating the term…
Abstract
A side loader for use with fork lift trucks or the like having a support frame and a rotatable frame mounted on the support frame for rotation with respect to the support frame about a vertical axis. A reach apparatus is mounted at its inner end upon the rotatable frame for extending and retracting movement along a substantially horizontal axis, and a fork bar frame carried upon the reach apparatus includes fluid actuated means for tilting the fork bars thereon. A unique actuator system is provided for rotating the rotatable frame with respect to the support frame.
Claims15
A side loader for use with fork lift trucks comprising a first support frame, a second frame, means for mounting said second frame on said first frame and for providing swingable movement of the latter about a vertical axis, a reach apparatus mounted on said second frame for extending and retracting movement along an axis normal to the swing axis of said second frame, said reach apparatus having a normally outer end, and a fork bar support frame carried upon said outer end of said reach apparatus;
- said means including first and second control linkages, each having one end pivotally secured to said first frame and each having an opposite end pivotally secured to said second frame, first and second selectively extensible elongated members having one end pivotally connected to said first and second control linkages respectively and the opposite ends thereof pivotally connected to said first frame whereby extension of said first extensible member and corresponding retraction of said second extensible member causes rotation of said second frame in one direction, and extension of said second extensible member and corresponding retraction of said first extensible member causes rotation of said second frame in the direction opposite said one direction.
In combination with a fork lift truck having a mast, a carriage mounted on said mast for movement therewith and means for elevating and lowering said mast, a side loader comprising:
- a first frame, means interengaging said first frame and said carriage for rendering said side loader movable with said mast, a second frame, rotative means suspending said second frame from said first frame and rendering same swingable about a vertical axis, a reach apparatus mounted on said second frame for extending and retracting movement along an axis normal to the said swing axis, a fork bar support frame carried upon said reach apparatus and load-receiving fork bars adjustably mounted on said fork bar support frame, said rotative means including first and second control linkages, each having one end pivotally secured to said first frame and each having an opposite end pivotally secured to said second frame, first and second selectively extensible elongated members having one end pivotally connected to said first and second control linkages respectively and the opposite ends thereof pivotally connected to said first frame whereby extension of said first extensible member and corresponding retraction of said second extensible member causes rotation of said second frame in one direction, and extension of said second extensible member and corresponding retraction of said first extensible member causes rotation of said second frame in the direction opposite said one direction.
Dependencies are inferred from the claim text.