ANCHOR, INSTALLATION TOOL FOR ANCHOR, AND EARTHQUAKE PROOF REINFORCEMENT CONSTRUCTION METHOD FOR CONCRETE SUPPORT COLUMN USING THESE

Japanese Patent JP2023058769

A

To provide a construction method allowing an inner diameter of a blockout part (seat digging part) in a concrete structure in which an anchor is installed to be minimized.SOLUTION: An anchor is provided with an anchor body part 30 in a rod shape inserted in an anchor insertion hole 81; a fixing part 40 arranged at a tip side of the anchor body part 30 and fixing the anchor body part 30 in the anchor insertion hole 81 by being pressed on an inner wall surface of the anchor insertion hole 81 through being enlarged in a state it is inserted to a deep part of the anchor insertion hole 81; and a nut 20 having a circular cross section attached on a head part of the anchor body part 30. The anchor body part 30 comprises a male screw part 31 on an outer peripheral surface at its head side as well as a groove part 32 in a radial direction in a tip surface of the head part. The nut 20 is provided with an insertion hole 22 for insertion of the head part of the anchor body part 30 as well as a female screw part 23 in an inner surface of the insertion hole 22 and an engagement part 21 for engaging a fastening tool 50 on its upper surface.SELECTED DRAWING: Figure 1

JP2842836	INDUSTRIAL APPLICABILITY [Invention title] Member for insert instrument
JP2001107927	ANCHOR NUT AND ANCHORING METHOD OF ANCHOR NUT

IMANISHI HIDEKIMI
SUZUKI AKIKAGE
HAMAGAMI SEIICHIRO
UEDA TAKUMI

JP2021168467A

April 26, 2023

October 14, 2021

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MAEDA CONSTRUCTION
FUJIMI KOKEN KK
FBS CO LTD
KOUKEN TECH CO LTD

E04B1/41; E04G23/02; F16B13/06

Ogawa Yoshihide

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