| 摘要 |
PURPOSE:To provide a joint metal fitting by which he tightening connection of connection objects is carried out firmly and occurrence of a disordered current and a whirl current is deterred and fluid resistance can be reduced. CONSTITUTION:A fixing main body 1 is imbedded on he same surface at one side connection object 10, and fixed, and a rotary spindle 7 is put into the fixing main body 1 so as to coincide with the front end surface, and a compression spring 4 is inserted into the lower end portion of the center hollow portion 15 of the rotary spindle 7, and a lock spindle 2 is inserted into the upper end portion of the center hollow portion 15 and the front end surface is made to coincide with the rotary spindle 7. A lock pin 3 is inserted into the lock spindle 2 through the lengthwise hole 17 of the rotary spindle 7, and the relief cutout 8 of the lock pin 3 is provided on the inner periphery surface of the fixing main body 1, and a lock groove 9 with which the end of the lock pin 3 is engaged, is axially provided at one end portion of the bottom surface of the cutout 8, and a receiving hole 11 is provided at the other connection object 12, and when the rotary spindle 7 is rotated so that a stopper metal plate 5 may meet at right angles with the receiving hole 11 on the back side of the connection object 12, the lock pin 3 is engaged with the lock groove 9. |
