| 摘要 |
1,176,917. Pipe couplings; closure plugs ; circlips. GRA-TEC Inc. 16 Oct., 1968 [24 Nov., 1967], No. 49167/68. Headings F2G, F2H and F2P. [Also in Division E2] A coupling unit, for example for conduits, comprises a female member 12 having a bore 14 extending thereinto from an outer face thereof and a pair of spaced recesses 36, 42 communicating with the bore, the recess 42 having an open end at the said outer face of the member 12, and a male member 16 receivable within the bore and having a groove 22 in the outer surface thereof for receiving a spring clip 26 provided with a pair of legs 44. The latter are receivable in the recess 42 through the open end thereof when the member 16 is inserted into the bore and when the legs 44 are urged toward each other, the clip having a portion alignable with the recess 36 and receivable in that recess when the legs are released; there are means such as shoulders 52 for releasably retaining the legs 44 in the recess 42. As shown, the member 16 includes a sealing ring 60 in a groove 20 and which contacts the larger diameter portion 34 of the bore 14. An inclined face 40 extends inwardly of the end face 38 of the member 12 toward the arcuate recess 36. The leg portions 24 of the clip may be circular or square in shape and a bight 50, when the legs 44 are brought toward each, is urged closer to the fitting 16 but moves outwardly into the recess 36 when the legs are released. The fitting may be in the form of a closure plug for the bore 14. |
