STUD WITH LARGE HEAD

STUD WITH LARGE HEAD

PROBLEM TO BE SOLVED: To provide a stud with a large head enhancing bearing strength to concrete to increase a drawing load using a general-purpose bolt member and preventing the early crack of the concrete near the head by preventing the stress concentration of bearing pressure at the hexagonal fac...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: IKEO RYOICHI, HIRASHIRO KOICHI
Format: Patent
Sprache:eng
Schlagworte:
BUILDING
CEILINGS
FIXED CONSTRUCTIONS
FLOORS
GENERAL BUILDING CONSTRUCTIONS
INSULATION OR OTHER PROTECTION OF BUILDINGS
ROOFS
WALLS, e.g. PARTITIONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a stud with a large head enhancing bearing strength to concrete to increase a drawing load using a general-purpose bolt member and preventing the early crack of the concrete near the head by preventing the stress concentration of bearing pressure at the hexagonal face of the head. SOLUTION: This stud with the large head comprises the bolt member 1 and a stud base member 3 welded to a base material 4 provided with an internal thread thread-connected to the bolt member 1. The bolt member 1 is fastened to the base material 4 by the stud base member 3. A circular washer member 2 formed in a diameter larger than the diameter of the head 12 of the bolt member 1 and formed with a hole 21 in the center to fittingly insert a shank 11 of the bolt member 1 is fitted to the bolt member 1 under the head and integrated with the bolt member 1. COPYRIGHT: (C)2004,JPO&NCIPI