| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce connection force between an insertion fitting 2 and a reception fitting 3 while completely keeping compatibility with a conventional three-hook type fitting, and to easily connect them with small force. <P>SOLUTION: In the three-hook type fitting composed of the insertion fitting 2 and the reception fitting 3, a taper face 20 having inclination more gentle than a taper face 13 of an engagement claw 14 is formed on a tip outer periphery of a large diameter portion 8 of the insertion fitting 2. As the engagement claw 14 of the reception fitting 3 is pressed and expanded by the taper face 20, the connection can be performed with small force, and as the fitting completely has the compatibility with the conventional three-hook type fitting, combined application at a fire site is available. <P>COPYRIGHT: (C)2007,JPO&INPIT |
