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US 7,546,797 B2Granted
One piece slipper holddown device
AssigneeSauer-Danfoss Inc.
InventorsMichael A. Betz, Daryl I. Rober, Robert Klinkel
Life of this patent
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Abstract
A holddown pin mechanism for hydraulic power units is a ball guide with a cylindrical flat base having a central opening, a plurality of spaced elongated holddown pins have one end rigidly secured to one side of said ball guide. The pins extend outwardly at right angles from the side of said washer to which they are secured. The holddown pin mechanism is placed in a hydraulic cylinder block having a center bore, with the pins extending into holes in the block. A flat washer on a shaft extending through the block engages the free ends of the pins.
Claims3
A ball guide for a hydraulic unit comprising:
- a body having a first rounded end and a second flat end;
- a plurality of spaced elongated holddown pins having one end rigidly secured to one side of said second flat end;
- and
- said pins protruding outwardly at right angles from the side of said body they are secured;
- wherein said pins and said body are of integral construction;
- wherein the pins are spaced and have a maximum transverse width to slip fit longitudinally into a hole in a cylinder block while simultaneously fitting within a space of a spline of a shaft disposed through the cylinder block.
3 more elements
Dependencies are inferred from the claim text.