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US 9,809,959 B2Granted
Retention system having double-ended expandable pin
AssigneeCaterpillar Inc.
InventorsSusan Marie Graham, Stephen John Pierz, Ronald Mark Ginn
Life of this patent
Estimating the term…
Abstract
A retention system is provided for use in connecting a replaceable tool to a work implement. The retention system may have a generally cylindrical pin with a first hollow end, and a second hollow end located opposite the first hollow end. The retention system may also have a first fastener configured to engage the first hollow end and cause the first hollow end to flare radially outward. The retention system may further have a second fastener configured to engage the second hollow end and cause the second hollow end to flare radially outward.
Claims3
A tool assembly, comprising:
- a work implement having a protruding nose portion and a bore passing transversely through the protruding nose portion;
- a replaceable tool configured to receive the protruding nose portion of the work implement and having apertures at opposing sides that are generally aligned with each other and with the bore of the work implement;
- a pin extending through the apertures of the replaceable tool and the bore of the work implement, and having a plurality of axially extending fingers located at each of two opposing ends;
- a first tapered fastener configured to engage the axially extending fingers at a first of the two opposing ends;
- and
- a second tapered fastener configured to engage the axially extending fingers at a second of the two opposing ends,
- wherein:
- engagement of the first and second tapered fasteners with the axially extending fingers causes the axially extending fingers to flare radially outward and engage the work implement;
- and
- heads of the first and second tapered fasteners engage walls of the apertures in the replaceable tool.
7 more elements
Dependencies are inferred from the claim text.