Title:
CONCRETE SKELETON MOLDING METHOD AND COUNTERBORE TOOL
Document Type and Number:
Japanese Patent JP2021098980
Kind Code:
A
Abstract:
To provide a concrete skeleton molding method and a counterbore tool capable of preventing the filler from falling out from a counterbore hole on a concrete surface leading to an embedded insert.SOLUTION: A counterbore 10 of the present invention is formed by combining a first counterbore forming tool 20 formed of an elastic material and a second counterbore forming tool 30 made of steel. The first counterbore forming tool 20 has a first end surface 20a that has a tubular shape and is in contact with a formwork 90 into which concrete is poured, a second end surface 20b on the opposite end side, and an outer peripheral side surface 20c connecting the first end surface 20a and the second end surface 20b. The outer peripheral side surface 20c has a tapered shape that tapers from the second end surface 20b toward the first end surface 20a. The second counterbore forming tool 30 has a fitting portion 30A that fits into an inner hole 20d of the first counterbore forming tool 20.SELECTED DRAWING: Figure 1
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Inventors:
YAMAKAWA TORU
YANAKA YASUNORI
SHIBA SATOSHI
YANAKA YASUNORI
SHIBA SATOSHI
Application Number:
JP2019231127A
Publication Date:
July 01, 2021
Filing Date:
December 23, 2019
Export Citation:
Assignee:
SMC PRECONCRETE CO LTD
International Classes:
E04B1/41; E04B9/18; E04G9/10
Domestic Patent References:
| JPH0667690U | 1994-09-22 | |||
| JPS6073744U | 1985-05-24 |
Foreign References:
| US5468105A | 1995-11-21 |
Attorney, Agent or Firm:
Kuribayashi Mitsuo
Osamu Nitta
Kazuki Kuribayashi
Atsushi Miura
Osamu Nitta
Kazuki Kuribayashi
Atsushi Miura