Screw-type rebar joint structure of deformed rebar and manufacturing method thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11274446
APP PUB NO 20190177976A1
SERIAL NO

16279390

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Abstract

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A threaded reinforcing bar coupling structure comprises a pair of reinforcing bars and a tubular coupler connecting the pair of reinforcing bars. Each of the reinforcing bars is a deformed reinforcing bar having spiral node portions on an outer periphery of a reinforcing bar main body having a round shaft shape. A cylindrical portion with node portions removed is formed on an end portion of the reinforcing bar, and a male threaded portion is formed on the cylindrical portion. The male threaded portion has hardness or tensile strength greater than that of a remaining portion of the reinforcing bar. The pair of reinforcing bars is connected by the screw tubular coupler that is screwed onto the male threaded portions.

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Patent Owner(s)

Patent OwnerAddress
FUKUDA AKIRA1-1-305 SANWA-CHO 2-CHOME TOYONAKA-SHI OSAKA 561-0828

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukuda, Akira Osaka, JP 54 846
Hirai, Keiji Fukuoka, JP 17 208
Wakiyama, Kozo Osaka, JP 5 11

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