Backhoe with foam filled composite plastic dipper stick

A high strength polymeric composite material Dipper Stick (10) which comprises a box shaped structure including an outer casing member (11) formed of a high strength polymeric composite materials, and an inner filler comprising polyurethane foam and disposed inside said outer casing member in order...

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Bibliographic Details
Main Authors CHUN KON KIM, JIN KIM, JAE IN KO, JAE WON LEE, EU JIN JEON, YOON MOK LEE
Format Patent
LanguageEnglish
Published 22.01.1992
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
DREDGING
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS
PERFORMING OPERATIONS
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
SOIL SHIFTING
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Summary:A high strength polymeric composite material Dipper Stick (10) which comprises a box shaped structure including an outer casing member (11) formed of a high strength polymeric composite materials, and an inner filler comprising polyurethane foam and disposed inside said outer casing member in order to be integrated with said outer casing member, and a plurality of bushing holders (13 to 18) made of polymeric composite material and disposed at connecting portions of said box shaped structure in order to be integrated with said structure. The present invention provides the weight reduction of about 50%-60% in comparison with the conventional structural steel Dipper Stick, and also about 6.8%-13.9% in comparison with the conventional structural steel Dipper Stick on the basis of the weight ratio of the excavated earth.
Bibliography:Application Number: GB19910014723