| 摘要 |
<p>PURPOSE:To prevent a rotation of a flange by fitting and inserting the front part of a tube body into the hole of a fixing flange bored for tube insertion and then drawing the end and calking the flange through formation of a bulged part and a pilot part in the end of the tube. CONSTITUTION:A diameter of the front part 11a of a tube body 11 fixed at the end of a hose member is smaller than that of the tube body 11. The front part 11a is fitted and inserted into a tube insertion hole 12a which is bored through a fixing flange 12 and provided with many narrow channels in its inner surface. Then, the front part 11a is drawn in a conical form while the flange 12 is fitted by pressure around the tube body 11. After that, a radial bulged part 11b and a pilot part 11a are formed by pressing the front part 11a and the peripheral part of the narrow channel of the flange 12 is calked toward the tube body 11. Thus, the tube body is installed firmly to prevent the rotation of the flange. Also, the surface of the pirot part is kept flawless.</p> |
