| 摘要 |
A one-piece moulded plastics curtain runner has a head 4 which can be inserted upwards into the track (3,Fig 4) of a curtain rail (2). The head has upstanding semicircular resilient parts 5 which pivot on the plate 9 of the head at points S. The runner is supported on the lips (6) of the track by runner surfaces 12<I>a</I> of inclined lateral projections 12, arranged on each side of the runner in pairs separated by a vertical groove (10,Fig 5). On pushing the runner upwards into the track, the inclined surfaces of the projections bear on the lips, causing the parts 5 to pivot and the projections to move inwards until they clear the track and return to their original position.
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