SEPARATOR HOLE COLLAR

• Main Authors: HORINAKA TOSHIHARU, TAKADA KAZUTAKA, HORI TOMOAKI, KAWAGUCHI NOBUHIRO, YAMASHITA MASAMI, KAJIWARA HIDEKI, MATSUZAKI MOTOSUKE, KOBAYASHI MASAKI, MIWA AKIHIRO, IWANAMI KOICHI, WATANABE RIKUO, SAKAGUCHI MASAYUKI
• Format: Patent
• Language: English
• Published: 09.09.1997
• Edition: 6
• Subjects: BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; FIXED CONSTRUCTIONS; FORMS; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHUTTERING

PROBLEM TO BE SOLVED: To improve execution property by continuously fitting a smooth inner peripheral face to the separator hole of a form in the thickness direction of the hollow form, pressing a contact piece arranged on the surface side of the form with a separator tip, and removing it from the separator hole to be repeatedly used. SOLUTION: When hollow forms 12 are arranged at constant intervals on an earth retaining wall, the inner peripheral face of the hole 10a of a separator hole collar 10 fitted to the form 12 is smoothly installed. When a separator 18 is arranged obliquely to the vertical direction of the earth retaining wall, the hooking of a rib on the heat insulating layer 12a and water guide layer 12b of the form 12 is excluded, and the inner peripheral face of the hole 10 a is smoothly inserted. When a support material and a separator part 18b are removed after concrete is placed, multiple holes 10a are formed on the principal plane of the heat insulating layer 12a of the form 12. Plugs having the outer diameter slightly larger than the diameter of the holes 10a and the length of about the thickness of the form 12 are inserted into the holes 10a. The collar 10 is expanded in diameter, the watertightness of the portion of a separator hole 14 formed on the form 12 is improved, and the leak of excess water to the surface side from concrete is prevented.