| 摘要 |
The disassembly of conduit fittings in vehicular sub-systems becomes very difficult and time consuming as a result of their location and the effect of corrosion. Various fittings have been designed to make this maintenance task less work for the mechanic. However, special tools must frequently be designed to provide for the hard to access locations and frozen joints that frequently exist. The combination tool of this invention provides such a tool for a common conduit fitting used in fluid piping sub-systems of vehicles. In particular, the air conditioning systems of automobiles can have a number of these fittings. The combination tool of this invention has three handles. Two of the handles, along with a jaw and collar fixture for each handle, form pliers to grip one female connector portion of the fitting. A collar portion of the jaw and collar fixture also displaces a retainer spring in a connector flange of the conduit fitting. A third handle is rotatably attached to the other two handles and has a retainer fixture attached. This third handle retains the connector flange of the conduit fitting. By a sequence of relative positions of the three handles the conduit fitting can be easily disassembled. The three fixtures can be replaced with identical fixtures of a different size to allow for different conduit fitting sizes. The combination tool of this invention can reduce the time to disassemble a conduit fitting from more than an hour to less than five minutes.
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