Combination bucket/breaker apparatus for excavator boom stick
OwnerLowell Underwoodinventor
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OwnerLowell Underwoodinventor
Estimating the term…
An excavating machine, representatively a tracked excavator has a boom stick portion on which both an excavating bucket and a hydraulic breaker are mounted for hydraulically driven pivotal movement between first and second limit positions. The bucket may be operated independently of the breaker for digging operations. Similarly, the breaker may be operated independently of the bucket for refusal material-breaking operations. The same excavating machine may now use the bucket and breaker in a rapid and continuous exchange, to frequently remove small quantities of broken refuse material with the bucket, exposing and breaker to fresh refuse material. A deployment system is disclosed having a bracket for closely aligned pivotal support of both the breaker and a single hydraulic cylinder on a single mounting bracket. An end stop and latching assembly are also disclosed to increase the control and reliability of the device. An extension stop is disclosed to stabilize the device during operation. A specially designed electrical and hydraulic circuit is provided which permits the positional control of both the bucket and the breaker with the same control device typically used to control the pivotal orientation of an excavating bucket.
An excavating machine, comprising:
An excavating machine, comprising:
A boom stick assembly for us e on an excavating machine, comprising:
An excavating tool system for use on an excavating machine, comprising:
A boom stick assembly for use on an excavating machine, comprising:
Dependencies are inferred from the claim text.