Patent ID: 7444922
Filing Date: 2008-11-04
Classification: B23Q,F15B,F16B,Y10T

Abstract:
1. A fastening assembly comprising: two members, on each of which a connection surface is formed and in each of which a communication groove extending and opened in a longitudinal direction along each of said connection surfaces, and an engagement groove provided with an engagement surface parallel with each of said connection surfaces and communicating with said communication groove are formed; and a fastener including, in a state in which said communication grooves are opposed to each other and said two members are made to contact through each of said connection surfaces, a first engaging piece having a first fastening surface formed in the longitudinal direction and which is inserted into said engagement groove of one of said members in the longitudinal direction, a second engaging piece having a second fastening surface opposed to said first fastening surface and formed in the longitudinal direction and which is inserted into said engagement groove of the other of said members in the longitudinal direction, and a connecting portion which has a width smaller than those of said engaging pieces and at whose base end each of the engaging pieces are connected, wherein when said fastener is embedded in said two members and said engagement surfaces and said fastening surfaces contact with each other, said two members are connected, said fastener is an intermediate fastener which is installed at a longitudinal-directional middle position of said communication groove and said engagement groove, and said connecting portion is formed into a cylindrical shape with a diameter capable of being inserted into said communication groove, and a width in a state in which at least one of said first engaging piece and said second engaging piece is rotated about a central axis of said connecting portion by a predetermined angle is formed smaller than the width of said communication groove.