Abstract:
PROBLEM TO BE SOLVED: To provide a joint in which a flat and thick planar body is formed by tabular elements engaged each other, which is used for the tabular element easily assembled and strong, and which can be easily manufactured.SOLUTION: A rabbet joint 2 is comprised of at least 3 ranges 2a, 2b, 2c, that is, an element side range 2a with surfaces in parallel each other, a range 2c rounded to terminate the rabbet joint 2, and a diameter tapering-off range 2b located between the parallel range 2a and the rounded 2c and having an inclined face extending in a direction mutually approaching. The 3 ranges 2a, 2b, 2c shift to each other without joints. A groove 3 has a shape corresponding to the rabbet joint 2.
Abstract:
PROBLEM TO BE SOLVED: To provide a wall panel which is small in used amount of a material of surface finish plates, facilitates working procedures, exerts sufficient fire resistance and heat resistance, and facilitates coupling thereof to another one, and to provide a method of manufacturing the wall panel. SOLUTION: The wall panel 1 is formed of the pairing surface finish plates 2, 2 and an interior finish material 3 interposed between the same. Each surface finish plate 2 has bent portions 2a obtained by bending both ends thereof inward. The wall panel further has coupling fittings 4 each formed of a projection 4a or a recess 4b and shoulder portions 4c continuously extending from the projection 4a or the recess 4b. Then by coupling the bent portion 2a and the shoulder portion 4c to each other, and fitting the projection 4a into the recess 4b, the wall panels 1, 1 are coupled to each other. Further the coupling fitting 4 is divided into a front side and a rear side at an almost central portion of the projection 4a and the recess 4b. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a floor panel with joint portions to be mutually joined in an optimum fashion for minimizing intrusion of dust and moisture while preventing a gap therebetween, and to provide its manufacturing method. SOLUTION: This floor finishing material is formed of the hard floor panel having the joint portions 4, 5 in a substantial form of a tongue 9 and a groove 10 cooperating each other at the edges of at least two opposed side faces 2, 3. In the joint portions 4, 5, an integrated mechanical lock means is provided for keeping two joined floor panels perpendicular to the relative edges 2, 3 and preventing them from being shifted to the direction parallel to a lower side face 7 of the joined floor panel 1 and departed therefrom. COPYRIGHT: (C)2006,JPO&NCIPI