TIP TO ADAPTER INTERFACE

WIPO Patent Application WO/1995/027102

A1

Tooth assemblies having a tip attached to an adapter by a retaining mechanism is normally utilized in order to readily replace the tip which is a high wear element. It is advantageous to have a tip that due to its interface with the adapter allows effective transfer of forces being subjected to the tip directly to the adapter without creating undesired resultant forces trying to force the tip from the adapter. In the subject arrangement, a tip (12) has a cavity (24) with a load bearing bottom surface (26) at the bottom of the cavity (24) and a pair of parallel spaced apart load bearing surfaces (36) adjacent thereto. The tip (12) also has an ear (38) extending from one of the side walls (32, 34) thereof, a longitudinally extending groove (48) defined therein, and a pin receiving opening (56) defined therein that extends through a top wall (28), the one sidewall (32) and a bottom wall (30) of the tip (12) and intersects the longitudinally extending groove (48). The adapter (14) has a forward end (72) which mates with the load bearing bottom surface (26) and the pair of parallel spaced apart load bearing surfaces (36) of the tip (12) and has a raised lug (90) on one side thereof which is disposed, upon assembly, in the longitudinally extending groove (50). A pin (108) is forced through a pin receiving opening (56) and contacts the raised lug (90) to secure the tip (12) to the adapter (14).

LIVESAY RICHARD E
ROZENBOOM NATHAN G

PCT/US1995/003802

October 12, 1995

March 27, 1995

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CATERPILLAR INC (US)

E02F9/28; (IPC1-7): E02F9/28

US2689419A	1954-09-21
US3021627A	1962-02-20
US4231173A	1980-11-04
US5272824A	1993-12-28

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