| 摘要 |
<p>A method of affixing an end fitting (12) to a hose (10) comprises inserting a spigot (14) of the end fitting internally into the end of the hose and crimping an external ferrule (16) over the hose and spigot portion, the spigot having an annular raised shoulder (23), characterised in that the ferrule (16) is provided with an externally relieved portion (26) in the area of the annular shoulder and is capable of being crimped in place using a standard crimp tool. The ferrule design of the invention overcomes the price disadvantage of prior art proposals since the production of an external relieved portion (26) is much cheaper than an internal groove. Moreover, a standard straight crimp tool can be used. The relieved portion is preferably in the form of an approximately hemispherical (in section) groove which allows satisfactory crimping, sealing and locking to take place with use of standard straight crimp tooling despite the fact that the groove is external rather than internal. The hose is clamped to the spigot of the end fitting and ferrule is independently locked on to the annular shoulder of the spigot. <IMAGE></p> |
