To provide an easy-disassemble type bolt securing the sufficient fastening force to a fastened member by structurally forming a large area on a part corresponding to a seat face, of a header (head part).
This easy-disassemble type bolt 1 has a male screw part 4 screwed in a screw hole of a female screw part 10 from its tip side through an insertion hole formed on the fastened member 8, to be fitted and held as is done in a conventional bolt, and a header 2 of large diameter is integrally extended from a pipe-shaped body part 3 of small diameter connected in a state of being extended from the male screw part 4. A slit is formed on the body part 3 and the header 2 in a state of being radially penetrated to the inside over the entire longitudinal length, and the headers 2 are connected by an approximately annular center part 5 having a diameter approximately same as the body part 3 and a plurality of long arm parts 6 extended in the approximately radial direction among a plurality of peripheral edge parts 7 coaxially separated from the center part 5 to provide a structure not disturbing the radial expanding and contracting motion of the body part 3.
TANIGAWA MASANOBU
SHARP KK
Kenho Ikeda
Keisuke Yamamoto
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