| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a safely-usable joint device for a floor, which can prevent an excessive load from being imposed on a corner joint plate even in an angle-like joint portion. <P>SOLUTION: This joint device 1 for the floor comprises: a joint plate supporting recess 5 which is formed on the joint portion-side of an inside floor skeleton provided via the angle-like joint portion, and which has an upper contour shape with a trapezoidal corner portion; a joint plate slide supporting recess 7 of a corresponding outside floor skeleton; the corner joint plate 10, the leading end of which is supported in an upward rotatable manner by a pin 8 and supported in a covering manner; right and left trapezoidal joint plates 12 and 11, the leading ends of which are supported in an upward rotatable manner in a joint plate supporting recess formed in such a shape that both side surfaces and one side surface abut on the joint plate 10, by means of a pin 8, and in which the other side surface for supporting the leading end in such a manner as to cover it is formed in a trapezoidal shape perpendicular to an upside and a downside; and right and left joint plate connecting implements 14 which are connected via a spring 13 in such a manner as to abut on both the side surfaces of the corner joint plate 10. <P>COPYRIGHT: (C)2009,JPO&INPIT |
