Method of manufacturing tube coupling bodies

Details Method of manufacturing tube coupling bodies Method of manufacturing tube coupling bodies

1989-03-22

1991-08-13

Thurlow, Jeffery

Metal working

Method of mechanical manufacture

Assembling or joining

29237, 264249, 264296, 264322, 2643281, 264DIG66, 285423, 425392, 425577, B29C 4304, B29C 5700

Patent

active

050384554

ABSTRACT:
Method of manufacturing a tube coupling body in a plastics material using injection moulding tooling. The body is formed with a cylindrical bore having enlarged end portions in a mould body and using removable cores. The cores form both the internal bore of the mould body and also end parts of the mould body so that once the cores are removed, end parts of the coupling body are revealed in the mould. While the end parts are still hot from the initial moulding operation, forming dies having tapering end cavities are pressed over the end parts of the moulding to form the end parts of the moulding with both external and corresponding internal tapered surfaces. The tapered internal surfaces of the end parts thus formed provide tapered cam surfaces for engaging the resilient arms of collets to be inserted in the coupling body to receive and lock tubes in the coupling body.

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