Back to results
US 4,382,625 AGranted
Grapple shear
OwnerRoy E. LaBountyinventor
Life of this patent
Estimating the term…
Abstract
A grapple shear having a lower jaw with three widely spaced forwardly projecting tines, the outer tines having upper ends mounting the upper jaw with a pair of tines to swing into interleaving relation with the tines of the lower jaw, the outer tines of the lower jaw having forwardly opening angular bights, a swingable shear blade on the central tine of the lower jaw which carries an upright mast and a hydraulic ram on the top of the mast and driving the shear blade downwardly in a cutting motion.
Claims9
A grapple shear for attachment onto the boom of a vehicle to reduce and handle lengths of scrap metal, comprising
- a lower jaw adapted for mounting on the boom of the vehicle and having forwardly projecting tine means to be capable of moving forwardly along the ground, the tine means including a lower tine with a top cutting edge extending toward the forward tip of the tine,
- a powered upper jaw with mounting means swingably connected to the lower jaw at a location above said tine means, the upper jaw having a pair of spaced tines which swing along said lower tine and receives said lower tine therebetween, and
- a powered shear blade lying along said lower tine and swingably mounted on the tine to swing downwardly along said top cutting edge in a shearing motion, the shear blade also swinging upwardly to cooperate with the lower tine in defining a scrap reducing shear with a forwardly opening angular bight into which such lengths of metal scrap are pushed, are oriented transversely of the lower tine and shear blade, and are held by the tines of the upper jaw.
A grapple shear for attachment onto the boom of the vehicle to reduce and handle lengths of metal scrap, comprising
- a lower jaw adapted for mounting on the boom of the vehicle and having forwardly projecting tine means to be capable of moving forwardly along the ground, the tine means including a pair of outer tines widely spaced from each other and having forwardly extending tip ends, and said tine means also including a central tine affixed to said outer tines and located therebetween, said central tine having a forwardly extending tip end and also having a top cutting edge extending toward the forward tip end,
- a powered upper jaw with mounting means swingably connected to the lower jaw at a location above said tines to swing into the lower jaw for gathering, pushing and orienting lengths of metal scrap rearwardly along said tines,
- and a powered shear blade lying along said central tine and swingably mounted on the tine to swing downwardly along said top cutting edge in a shearing motion, the shear blade also swinging upwardly to cooperate with the central tine in defining a scrap reducing shear having a forwardly opening angular bight into which such lengths of metal scrap are pushed, oriented and held by the upper jaw.
A grapple shear for attachment onto the boom of a vehicle to reduce and handle lengths of metal scrap, comprising
- a lower jaw adapted for mounting on the boom of the vehicle and having forwardly projecting tine means to be capable of moving forwardly along the ground, the tine means including a lower tine with a top cutting edge extending toward the forward of the tine,
- a powered upper jaw with mounting means swingably connected to the lower jaw at a location above said tine means, the upper jaw having an opening intermediate its width to receive the lower tine therein to accommodate an interleaving relation between the lower and upper jaws as the upper jaw pushes and orients the lengths of scrap transversely of said lower tine,
- a shear blade lying along said lower tine and swingably mounted on the tine to swing downwardly along said top cutting edge in a shearing motion, the shear blade also swinging upwardly to cooperate with the lower tine in defining a scrap reducing shear with a forwardly opening angular bight into which such lengths of metal scrap are pushed, oriented and held by the upper jaw,
- and an upright mast affixed to the lower tine located rearwardly of the forward tip thereof, and an upright hydraulic ram connected between the top of the mast and the shear blade and swinging the blade to produce a shearing of scrap supplied by the upper jaw and to reopen the bight of the shear for orienting and receiving additional metal scrap.
1 more element
A grapple shear for attachment onto the boom of a vehicle to reduce and handle length of metal scrap, comprising
- a lower jaw adapted for mounting on the boom of the vehicle and having forwardly projecting tine means to be capable of moving forwardly along the ground, the tine means including a pair of widely spaced outer tines with forwardly extending tip ends and obliquely extending upper ends, said outer tines having forwardly opening angular bights between said upper and forward ends thereof, the tine means also including a central tine between said outer tines and having a forwardly extending tip end and a top cutting edge extending toward the forward tip end,
- a powered upper jaw with mounting means swingably connected to the lower jaw at a location above the forwardly extending tip ends and the upper jaw having a pair of spaced tines which swing between and interleave with the tines of the lower jaw, and
- a powered shear blade lying along said lower tine and swingably mounted on the tine to swing downwardly along said top cutting edge in a shearing motion, the shear blade also swinging upwardly to cooperate with the lower tine in defining a scrap reducing shear with a forwardly opening angular bight into which such lengths of metal scrap are pushed by the upper jaw, the tines of the upper jaw traversing the bight of the shear and the bight of the outer jaws to cooperate with the shear and outer tines in orienting and holding the lengths of metal scrap in the shear for cutting.
Dependencies are inferred from the claim text.