US 5,544,435 AGranted

Brush rake

OwnerNick Someroinventor

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Abstract

A brush rake for attachment to an excavator arm equipped with a bucket and a thumb having inner and outer pairs of teeth. The brush rake has a parallel array of rake teeth attached to a rake bar, and a mounting plate having one end thereof attached to the rake bar. An opposite end of the mounting plate is adapted to overlie the body of the thumb and to be received between the outer pair of teeth of the thumb. A parallel pair of apertured ears attached to the rake bar is so disposed thereon that when the rake bar is placed adjacent and transversely with respect to the teeth of the thumb, the ears lie adjacent and on opposite sides of the inner teeth of the thumb. Mounting holes are provided in the mounting plate and matching holes are bored through the body of the thumb. The brush rake is attached to the thumb by inserting pins through the ears and through holes bored through the inner teeth of the thumb, and by inserting mounting bolts through the mounting holes and matching holes in the thumb.

Claims5

Dependent claims

A brush rake for mounting on an excavator equipped with a boom, an arm, a bucket, and a thumb operably connected to said arm having inner and outer teeth reinforced by gussets, and a hydraulic system for controlling movements of the boom and the thumb, comprising:

(a) a rake bar;
(b) a plurality of spaced-apart, parallel, rake teeth each having a first end attached to the rake bar and a second, opposite, pointed free end extending away from the rake bar in a longitudinal direction;
(c) a mounting plate having a first portion attached to the rake bar, a second, opposite portion that extends away from the rake bar in a reverse longitudinal direction, and a third portion intermediate the first and second portions and integral therewith;
and
(d) means for attaching the brush rake to the thumb without requiring removal of the bucket from the arm;
wherein the rake bar is a tube sealed by caps inserted into the opposite ends thereof, and the first end of each rake tooth has a bore through which is inserted the rake bar, whereby each rake tooth is rigidly attached to the rake bar.

3 more elements

Dependencies are inferred from the claim text.