| 摘要 |
<p>PURPOSE:To obviate a leak of fluid without using any sealant by forming a nipple ring groove, consisting of a nipple and a sleeve, into a trapezoidal groove form, which becomes expanded inward, and pressing a hose bitten into the trapezoidal groove to a groove wall, under pressure, by dint of caulking reaction of the sleeve. CONSTITUTION:In a hose joint, whose groove 1a at the tip side, among ring grooves 1a-1d on the outer circumference of a nipple 1, is flaring and formed into an inverse trapezoidal groove form in section, and the rest, 1b-1d, formed into trapezoidal groove form in inward expanding section, a hose 3 with elasticty is inserted into the nipple 1, a sleeve 2 is bitten into these ring grooves 1a-1b after caulking this sleeve 2, thus the hose 3 is connected. In these ring grooves, the section being expanded inward is formed into a trapezoidal form, and it comes to press an inner circumference of the bitten hose to a groove wall by dint of caulking reaction. In consequence, airtightness is improvable without using any sealant.</p> |
