To solve the problem associated with a concrete placing jig that: when placing concrete in the concrete form for a hand rail or the like by a conventional method, the concrete overflows outside the concrete form, contaminating a finished concrete in a lower part and the overflowing concrete is applied to the concrete form and hardened, thereby damaging the concrete form when it is disassembled.
A concrete placing jig 1 comprises: a bottomed cylindrical hopper placed on a formed concrete form and movable; a vibration device attached to the hopper and vibrating concrete in the hopper; an opening provided for placing the concrete in the hopper in the concrete form at a bottom part of the hopper; the bottom part of the hopper formed so as to be brought into surface contact with upper parts of reinforcements arranged in the concrete form; and a pipeline feed part formed such that an end of the pipeline for feeding concrete into the hopper is placed in a side wall part of the hopper.
NAKAYAMA MASAHIRO
ONISHI NAOKI
SUENAGA KENJI
KAWABE HIRONOBU
KOBAYASHI TAKUYA
NAGAO SHIGEYOSHI
USUI TAKAYUKI
SAKAMAKI HIROYUKI
HOSOI SHIGERU
IMADA MASAHITO
| JPH10196114A | 1998-07-28 | |||
| JPH08338135A | 1996-12-24 | |||
| JP2000001995A | 2000-01-07 | |||
| JPS6436458U | 1989-03-06 |