Patent ID: 6131005
Filing Date: 2000-10-10
Classification: E04C,G03G

Abstract:
A structure member comprising:a first plate member formed by press working of a thin metal plate and having a plurality of truncated cone-shaped projections; anda second plate member formed by press working of a thin metal plate and having a plurality of truncated cone-shaped projections,wherein said first and second plate members are stacked in such a manner that a surface of said first plate member on which said plurality of truncated cone-shaped projections are provided is opposite to a surface of said second plate member on which said plurality of truncated cone-shaped projections are provided and that tip ends of said plurality of truncated cone-shaped projections of said first and second plate members are not overlapped with each other so that said plurality of truncated cone-shaped projections of said first and second plate members are arranged in a staggered fashion, and wherein contacted portions of said first and second plate members are joined together to form a single plate body.