Title:
SPECIAL NAIL
Document Type and Number:
Japanese Patent JP03069806
Kind Code:
A
Abstract:
PURPOSE: To make it possible to drive a nail into foaming concrete smoothly and increase pull-out strength by forming a film which melts by friction heat which is generated when a nail is driven on the surface of a nail shaft.
CONSTITUTION: A film 3 made of vinyl chloride synthetic resin which melts by friction heat which is generated when a nail is driven is formed on the circumferential surface of a nail shaft 2. The nail can be smoothly driven accordingly owing to friction heat which is generated when it is driven into foaming concrete 4. After it is cooled, it is solidified, thus increasing pull-out strength.
Inventors:
Tanaka, Yoshiharu
Application Number:
JP1989000205119
Publication Date:
March 26, 1991
Filing Date:
August 08, 1989
Export Citation:
Assignee:
TAKUKEN SHOJI KK
International Classes:
E04B1/41; B21G3/28; F16B15/00; (IPC1-7): B21G3/28; E04B1/41; F16B15/00