| 摘要 |
PROBLEM TO BE SOLVED: To easily make a structure in producing the structure of building, vehicle, etc., by connection through frictional grip. SOLUTION: This hollow member is provided with protruded parts 37a, 38a protruding to a surface side in a connection part of two hollow mold materials 31, 32. That is, thickness in the connection part is thickened. A height of the protruded parts 37a, 38a is formed equal. A plate 36 and a protruded piece 37 are formed in a little thinned thickness. In this way, volume of the protruded parts 37a, 38a buries a clearance by friction grip even when it is provided between the protruded parts 37a, 38a before friction grip. Consequently, outward appearance is attractive, an amount of putty can be decreased. |
