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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-5163804-A, on 17 November 1992. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000003392

Attachment for loading and unloading constructional material

Published
Permanent URL
Classification
Lifting, Positioning & Manipulation › Hoists and Cranes
Inventors
KOBAYASHI SHOICHI
Assignee
SK KK
Original source
US-5163804-A, the United States Patent and Trademark Office, 17 November 1992
Document SHA-256
3fcd5099e6090ceb751c8a5f5d9da35bba9a27ead264cfa94b4f4f86d4b26774

An attachment for loading and unloading a constructional material capable of substantially improving working efficiency and accomplishing labor saving. A pair of holding arm are pivotally mounted in a manner to be laterally spaced from each other on an arm mounting bracket arranged on a lower surface of a bracket mounted on an arm of a hydraulic shovel, between which a hydraulic cylinder is arranged, resulting in a constructional material being supported between or on the holding arms. Thus, force required for supporting the constructional material can be finely controlled as desired to prevent the material from being broken or damaged due to the application of excessive force thereto.

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Abstract

An attachment for loading and unloading a constructional material capable of substantially improving working efficiency and accomplishing labor saving. A pair of holding arm are pivotally mounted in a manner to be laterally spaced from each other on an arm mounting bracket arranged on a lower surface of a bracket mounted on an arm of a hydraulic shovel, between which a hydraulic cylinder is arranged, resulting in a constructional material being supported between or on the holding arms. Thus, force required for supporting the constructional material can be finely controlled as desired to prevent the material from being broken or damaged due to the application of excessive force thereto.

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Publication information

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Citation

OpenTechnical Publication OT-2026-000003392, “Attachment for loading and unloading constructional material,” published September 15, 2026 at 20:21:02 UTC, https://opentechnical.org/p/OT-2026-000003392.

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Terms

This record reproduces a document published elsewhere and is provided for reference and study. Rights in the original remain with its owner. See the publication policy.