| 摘要 |
A tube coupling, of the kind having a collet in a bore in a body member, the collet arms having cam surfaces co-operating with an internal surface on the bore so that the collet arms are forced radially inwardly to grip a tube in the collet if the latter is pulled in a direction outwardly of the bore, has the collet moulded of plastics material. Projections intermediate the ends of each collet arm are provided to grip the tube and the arms are shaped so that their portions inwardly of the bore beyond the projections also bear against the tube, thereby spreading the gripping force along part of the length of the tube and so preventing the tube from deforming and pulling out even if the tube is of resilient material.
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