Track chain assembly with integral pin and link

Details Track chain assembly with integral pin and link Track chain assembly with integral pin and link

1979-03-16

1981-04-21

Marmor, Charles A.

Wheel substitutes for land vehicles

Combined or convertible

305 39, 305 54, 403152, 474223, B62D 5520

Patent

active

042629713

ABSTRACT:
A track chain construction (10) wherein a pair of link chains (11 and 12) are maintained in spaced parallel relationship by shoes (13) secured to the respective links (16,17) of the link chains. The shoes define central lugs (18) for engagement by the drive sprocket in operating the track chain. Each link (16,17) defines an integral unitary structure including a socket portion (23) and a pin portion (24). The pin defines a reservoir (27) for containing lubricating oil for lubricating the pivot joint defined by the pin (24) received in the socket bore (23). A crescent seal (36) defines a moving seal for cooperation with a fixed seal (30,31) between an end cap (29) and the socket end (21) of the link for sealingly maintaining the oil against leakage from the pivot joint (20). A removable plug (28) permits recharging the oil reservoir (27) when desired. The seal (36) includes an improved wear member (42) adhesively bonded to the pin (24) and defining the surface against which one leg (41) of the seal movably engages. Structure (33,34) is provided for limiting the axial movement of the pin (24) relative to the socket (23).

REFERENCES:
patent: T978007 (1979-01-01), Livesay
patent: 1293606 (1919-02-01), Young
patent: 2598828 (1952-06-01), Phelps
patent: 3601454 (1971-08-01), Reinsma
patent: 3628834 (1971-12-01), Anderson
patent: 3829173 (1974-08-01), Stedman
patent: 4150856 (1979-04-01), Hakkenberg et al.

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