Mobile wood and tire shear
First Claim
1. A heavy duty mobile shear for workpieces, such as wood, for connection to the dipper stick and hydraulic cylinder of a mobile machine such as a hydraulic excavator, comprising:
- (a) a lower stationary jaw rigidly attachable to the dipper stick having a forwardly extending face plate for receiving and supporting the workpiece with two tines extending forwardly from the face plate; and
(b) an upper C-shaped swingable jaw having a cutting blade with a knife-like edge, the upper jaw being pivotally mounted to the lower jaw and connected to the hydraulic cylinder as to swing the upper jaw between opened and closed positions relative to the lower jaw and to bring the cutting blade down upon the face plate as to penetrate and shear through wood.
1 Assignment
0 Petitions
Accused Products
Abstract
A heavy duty mobile wood and tire shear having a lower stationary jaw rigidly attachable to the dipper stick of a hydraulic excavator. The lower jaw has a forwardly extending face plate for receiving and supporting the workpiece with two forwardly extending tines. An upper C-shaped swingable jaw is pivotally mounted to the lower jaw and connected to the hydraulic cylinder of the dipper stick. The swingable jaw has a cutting blade with a knife-like edge. The upper jaw swings between open and closed positions relative to the lower jaw as to bring the cutting blade down upon the face plate as to penetrate and shear through wood. Shearing blades are releasably affixable along the knife-like edge of the cutting blade and along the face plate as to bring the shearing blades into shearing relation as the upper jaw approaches the closed position as to also shear through tires.
49 Citations
32 Claims
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1. A heavy duty mobile shear for workpieces, such as wood, for connection to the dipper stick and hydraulic cylinder of a mobile machine such as a hydraulic excavator, comprising:
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(a) a lower stationary jaw rigidly attachable to the dipper stick having a forwardly extending face plate for receiving and supporting the workpiece with two tines extending forwardly from the face plate; and (b) an upper C-shaped swingable jaw having a cutting blade with a knife-like edge, the upper jaw being pivotally mounted to the lower jaw and connected to the hydraulic cylinder as to swing the upper jaw between opened and closed positions relative to the lower jaw and to bring the cutting blade down upon the face plate as to penetrate and shear through wood. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A heavy duty mobile wood and tire workpiece shear for connection to the dipper stick and hydraulic cylinder of a mobile machine such as a hydraulic excavator, comprising:
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(a) a lower stationary jaw rigidly attachable to the dipper stick having a forwardly extending face plate for receiving and supporting the workpiece; (b) an upper C-shaped swingable jaw having a cutting blade with a knife-like edge, the upper jaw being pivotally mounted to the lower jaw and connected to the hydraulic cylinder as to swing the upper jaw between opened and closed positions relative to the lower jaw and to bring the cutting blade down upon the face plate as to penetrate and shear through wood; and (c) a first shearing blade releasably affixable along the knife-like edge of the cutting blade and a second shearing blade releasably affixable along the face plate as to bring the shearing blades into shearing relation as the upper jaw approaches the closed position as to also shear through tires. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A heavy duty mobile shear for workpieces, such as wood, for connection to the dipper stick and hydraulic cylinder of a mobile machine such as a hydraulic excavator, comprising:
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(a) a lower stationary jaw rigidly attachable to the dipper stick having a forwardly extending face plate for receiving and supporting the workpiece with two tines extending forwardly from the face plate with a slot therebetween; (b) an upper C-shaped swingable jaw having a nose tine and a cutting blade with a knife-like edge, the upper jaw being pivotally mounted to the lower jaw and connected to the hydraulic cylinder as to swing the upper jaw between opened and closed positions relative to the lower jaw and to bring the nose tine into the slot and the cutting blade down upon the face plate as to penetrate and shear through wood; and (c) a reversible first shearing blade releasably affixable along the knife-like edge of the cutting blade and a reversible second shearing blade releasably affixable along the face plate as to bring the shearing blades into shearing relation as the upper jaw approaches the closed position as to also shear through tires. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. A heavy duty mobile shear for workpieces, such as wood, tires and the like, for connection to the dipper stick and hydraulic cylinder of a mobile machine such as a hydraulic excavator, comprising:
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(a) a lower stationary jaw rigidly attachable to the dipper stick having a forwardly extending face plate for receiving and supporting the workpiece with two tines extending forwardly from the face plate with a slot therebetween; (b) an upper C-shaped swingable jaw having a nose tine and cutting blade with a knife-like edge, the upper jaw being pivotally mounted to the lower jaw and connected to the hydraulic cylinder as to swing the upper jaw between opened and closed positions relative to the lower jaw and to bring the nose tine into the slot and the cutting blade down upon the face plate as to penetrate and shear through wood; (c) releasable mounting means for affixing a first shearing blade along knife-like edge of the cutting blade and for affixing a second shearing blade along the face plate as to bring the shearing blades into shearing relation as the upper jaw approaches the closed position as to shear through the tires; and (d) guide means extending from the face plate into the slot guide adjacent one tine for guiding engagement with the nose tine on the upper C-shaped jaw as the upper jaw swings from opened to closed positions.
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Specification