| 摘要 |
<p>The disclosure relates to a tube coupling having a coupling body (10) with a throughway (11) open at one end (14) to receive a tube (12) and an open ended housing (21) on the body projecting from one end through which a tube may extend into the throughway in the body. A collet (24) is located in the housing having an annular part (25) with resilient legs (30) projecting towards the open end (22) of the housing and terminating in jaws (31) to engage an upset (13) on the tube to hold the tube in the coupling body. The housing has an end region (22) remote from its coupling body in which the collet jaws are constrained against expansion to release the tube and an intermediate region (23) in which the ends may expand. The collet has arms (26) projecting into and held in the throughway of the coupling body when a tube is present to restrain the collet so that the collet jaws are prevented from moving beyond the ends of the region of the housing to a position in which they could expand and release the tube. <IMAGE></p> |
