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US 4,638,703 AGranted
Shear for different structural shapes
OwnerKarl-Heinz Muhrinventor
Life of this patent
Estimating the term…
Abstract
A shear for structural shapes in which the shear body is pivotal on the machine body between an erect position and an inclined position to bring respective pairs of blades into play at one and the same working plane for cutting the different structural shapes for which the blades are provided. The machine body can have a punch whose working height can correspond to that of the blades.
Claims18
A shear for severing at least two different structural shapes, comprising:
- a machine body;
- a shear slide pivotally mounted on said machine body to swing about a horizontal axis between a first operating position and a second operating position angularly offset from said first position about said axis, said shear slide being capable of rectilinear movement;
- a pair of fixed blades spaced apart in the direction of said rectilinear movement when said slide is in said first operating position and oriented to cut respective structural shapes;
- and
- a respective movable blade on said slide juxtaposed and paired with each of said fixed blades and cooperating with the respective fixed blade to sever the respective structural shape upon said rectilinear movement of said slide, said blades being positioned with respect to said axis so that each pair of blades is disposed at a common given working height in a respective severing position thereof.
2 more elements
A shear for severing at least two different structural shapes, comprising:
- a machine body comprising a pair of plates;
- a shear body pivotably mounted on said machine body between said plates to swing about a horizontal axis between a first operating position and a second operating position angularly offset from said first position about said axis;
- a slide mounted on said shear body for rectilinear movement thereon;
- means on said shear body for imparting said rectilinear movement to said slide;
- a pair of fixed blades on said shear body spaced apart in said direction of rectilinear movement when said shear body is in said first operating position and oriented to cut respective structural shapes;
- and
- a respective movable blade on said slide juxtaposed and paired with each of said fixed blades and cooperating with the respective first blade to sever the respective structural shape upon said rectilinear movement of said slide, said blades being positioned with respect to said axis so that each pair of blades is disposed at a common given working height in a respective severing position thereof.
4 more elements
Dependencies are inferred from the claim text.