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1. (WO1979000966) HINGE JOINT FOR TRACK LINK ASSEMBLIES
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Claims

1. A track link assembly comprising:
two meshed track links (10,12) one having a narrow end (20) received in a notch in an enlarged end (24) in the other;
aligned bores (26,28) in said links;
a hinge pin (30) received in said bores for pivoting said links together;
annular grooves (42) at opposite ends of said pin;
retaining rings (44) in said grooves;
recesses (40) in said other link about the bore therein adjacent the ends of said pin and defining shoulders substantially abutted by said retaining rings; and
caps (50,52) closing said- recesses and having axial portions about the periphery of the respective retaining ring for preventing radial movement thereof.

2. The track link of claim 1 wherein said caps have radial portions (56) in substantial adjacency " to the respective ring opposite of the associated should to axially restrain the respective ring.

3. The track link of claim 1 wherein said cap are cup-shaped and press fitted into respective ones of said recesses.

4. The track link of claim 3 wherein said pin includes an axially extending lubricant receiving passag (32) and one of said caps includes a sealable conduit (5 projecting into said passage.

5. The track link of claim 1 wherein said pin

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OMP includes an axial through bore (32) and one of said caps includes an opening to said through bore.

6. The track link of claim 1 further including a shim (46) interposed between each ring and the associ-ated shoulder.

7. A hinged joint comprising: two meshed
hinge members; (10,12) aligned bores (26,28) in said
hinge members; a hinge pin (30) received in said bores for pivoting said members together; annular grooves (42) in said pin at opposite ends thereof; recesses (40) in at least one of said members about the bore therein
adjacent the ends of said pin and defining shoulders;
retaining rings (44) in said groove and substantially abutting said shoulders; and caps (50,52) closing said recesses and having axial portions (54) about the periphery of the respective retaining ring for preventing radial movement thereof.

8. The hinged joint of claim 7 wherein said caps are cup-shaped and press fitted into respective
ones of said recesses.

- UREAIT
OMPI