Double acting demolition device and utility machine for demolishing structures
AssigneeSavonlinnan PR-Urakointi Oy
InventorJarkko Brunou
Life of this patent
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Abstract
The application relates to a double acting demolition device according to one embodiment for demolishing structures. The device includes a first crushing jaw for crushing operation, a first cutting jaw for cutting operation, and a combination jaw. The first jaws are separate jaws. The combination jaw is attachable to the first cutting jaw for constructing a second crushing jaw and to the first crushing jaw for constructing a second cutting jaw. The second crushing jaw is used jointly with the first crushing jaw in crushing operation and the second cutting jaw is used jointly with the first cutting jaw in cutting operation. In crushing operation, the first crushing jaw rotates around a fulcrum other than that of the second cutting jaw in cutting operation.
Claims10
A double acting demolition device for demolishing structures, comprising
- a first crushing jaw for crushing operation,
- a first cutting jaw for cutting operation, and
- a combination jaw,
- wherein the first crushing and cutting jaws are separate jaws,
- wherein the combination jaw is configured to be attached to the first cutting jaw for establishing a second crushing jaw and to the first crushing jaw for establishing a second cutting jaw,
- wherein the second crushing jaw is configured to be used jointly with the first crushing jaw in the crushing operation and the second cutting jaw is configured to be used jointly with the first cutting jaw in the cutting operation,
- wherein said first crushing jaw comprises a cutting pivot aperture for attaching the combination jaw to the first crushing jaw and said first cutting jaw comprises a crushing pivot aperture for attaching the combination jaw to the first cutting jaw, and
- wherein attachments of the cutting and crushing pivot apertures of the first crushing and cutting jaws are configured to enable the first crushing jaw to rotate alone around a first fulcrum and to rotate as a part of the second cutting jaw around a second fulcrum, which is a different fulcrum than the first fulcrum, in such a way that the first and second crushing jaws are configured to attain a maximum attainable force in the crushing operation at an opening angle between the first and second crushing jaws, which is greater than an opening angle between the first and second cutting jaws where the first and second cutting jaws are configured to attain a maximum attainable force in the cutting operation.
Dependencies are inferred from the claim text.