High-power rescue tool
First Claim
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1. A rescue tool, comprising:
- a frame,a pair of substantially flat arms, the arms being pivotably mounted in a common yoke, the yoke being attached to a piston means disposed within the frame, the frame defining a region within which the piston means can move upward and downward, wherein upward movement of the piston means causes the arms to separate, and wherein downward movement of the piston means causes the arms to come together,the arms being connected to the frame by a pair of links, the links being spaced equidistant from the yoke, the links being pivotably mounted to the frame and to the arms,hydraulic means for moving the piston means upward and downward within the frame, andblade means attached to the arms, the blade means being distinct from the arms,wherein both of the arms have the general shape of a solid right triangle, and wherein the arms, when together, form a substantially soild triangular shape, the arms being constructed of a graphite laminate composite material.
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Abstract
The invention comprises a hydraulic rescue tool which is useful in extricating victims form traffic accidents. The tool can perform three basic functions: pushing, pulling, and cutting. The tool comprises a pair of pivotably mounted arms connected to each other within a common yoke. The arms are forced together or apart by a hydraulically operated piston. Attached to the arms are a pair of cutting blades. The arms are made of a graphite laminate composite material for increased strength.
39 Citations
11 Claims
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1. A rescue tool, comprising:
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a frame, a pair of substantially flat arms, the arms being pivotably mounted in a common yoke, the yoke being attached to a piston means disposed within the frame, the frame defining a region within which the piston means can move upward and downward, wherein upward movement of the piston means causes the arms to separate, and wherein downward movement of the piston means causes the arms to come together, the arms being connected to the frame by a pair of links, the links being spaced equidistant from the yoke, the links being pivotably mounted to the frame and to the arms, hydraulic means for moving the piston means upward and downward within the frame, and blade means attached to the arms, the blade means being distinct from the arms, wherein both of the arms have the general shape of a solid right triangle, and wherein the arms, when together, form a substantially soild triangular shape, the arms being constructed of a graphite laminate composite material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A high power rescue tool, comprising:
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a frame, a pair of arms connected to the frame, the arms being pivotably mounted within a yoke and also pivotably mounted to the frame by a pair of pivot links disposed on the periphery of the frame, the yoke being connected to a piston, the piston being movable upwards and downwards within a cylindrical space defined by the frame, wherein upward movement by the piston tends to force the arms to separate, and wherein downward movement by the piston tends to force the arms to come together, the arms comprising similar, substantially solid, right triangular members, the arms being constructed of graphite laminate composite material, a pair of blades attached to the arms, the blades being distinct from the arms, wherein the arms are mounted within two yoke members, the arms having recesses shaped to receive each of the blades, each combination of arm and blade forming a substantially flat surface, the surfaces being urged together by fastening means on the exterior of the yoke.
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Specification