Tooth system

Details Tooth system Tooth system

2011-07-05

2011-07-05

Beach, Thomas A (Department: 3671)

Excavating

Digging edge

Tooth or adaptor

C037S452000, C037S450000, C299S102000, C299S085200

Reexamination Certificate

active

07971375

ABSTRACT:
A tooth system for a tool for earth moving machinery that includes a holder located on the tool and a front tooth portion that is detachably arranged on and in relation to the holder, which tooth portion is in the form of a replaceable wear/replacement part with a rear leg and the holder embodies a cavity designed to receive the leg of the tooth portion. This achieves a unified joint for assimilation of occurring loads via a predetermined connection geometry embodying special, opposite, mutually interacting contact surfaces and clearance surfaces arranged along the tooth portion and holder. The joint includes a multi-armed, preferably cruciform, cross section comprising at least four projection arms and at least four grooves each that interact with each projecting arm. Each projection arms includes a vertically arranged, upper arm, lower heel and two, essentially horizontally and laterally arranged, wing portions, with a tensioning device.

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International Search Report No. PCT/SE2004/001075, dated Oct. 4, 2004, 3 pages.

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