US 10,967,380 B2Granted

Heavy duty material processor

AssigneeStanley Black & Decker, Inc.

InventorsKarl Johnson, Clayton Sederberg, Shane Bubacz, Matthew George Mecklin

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Abstract

Heavy-duty material processors (e.g., shears, concrete crushers) include a jaw that pivotally connects to another jaw. A hydraulic cylinder extends between the jaws to open and close the jaws in a shearing motion. Cutting/shearing/crushing blade inserts mount to detachable blade holders, which in turn mount to one of the jaws. Wedge blocks securely and detachably attach the blade inserts to the remainder of their associated jaw, and rely on force-amplifying wedge surfaces to ensure a secure attachment. The detachable blade holders may include lateral flanges that extend across an otherwise exposed face of their respective underlying jaw bodies to protect the jaw bodies during use. A blade on one of the jaws is laterally adjustable, which helps to free a jam if one of the jaws gets jammed into the space between blades in the other jaw.

Claims23

Dependent claims

A material processor comprising:

a first jaw with a first material-processing surface feature;
and
a second jaw with a second material-processing surface feature,
wherein the first and second jaws are pivotally connected such that at least one of the jaws is pivotally movable relative to the other jaw,
wherein the first jaw comprises:
a first jaw body with a blade seat surface,
a blade seated on the blade seat surface, the blade defining at least a portion of the first material-processing surface feature,
a wedge block having (a) a first wedge surface that engages a surface of the first jaw body, and (b) a second wedge surface that engages a surface of the blade, and
a fastener that mounts the wedge block to the first jaw, the fastener applying a force to the wedge block in a force-applying direction that is angled relative to one of the first and second wedge surfaces such that (1) the force urges the blade into engagement with blade seat surface in the force-applying direction, and (2) the force urges, via the first and second wedge surfaces, the blade into engagement with the blade seat surface in a direction different from the force-applying direction.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/765,676Filed 29 Mar 2018 · us provisional application
Priority: 31 Mar 2017
Published: US 2019/0085531 A121 Mar 2019
Granted: 6 Apr 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B02C 1/06
Jaw crushers or pulverisers: with double-acting jaws
B02C 1/10
Jaw crushers or pulverisers: shape or construction of jaws
B23D 17/06
Characterised by drives or gearings therefor: actuated by fluid or gas pressure
B23D 35/002
Tools for shearing machines or shearing devices; Holders or chucks for shearing tools: means for mounting the cutting members