| 摘要 |
A finial-adaptive pull chain has a bead chain disposed between an adaptor and a spring assembly. The adaptor retains the terminal bead of the bead chain, has external threads on the lower portion for receiving a finial and has a gripping surface on the upper portion to facilitate hand-manipulation during attachment. The upper portion has a diameter no greater than the lower portion so that the adaptor is substantially hidden from view when a finial is fully attached and does not unduly interfering with the decorative requirements of any end-user. The spring assembly has a spring for absorbing dynamic tensile forces applied during activation and deactivation to reduce the risk that the end-user will damage the electrical components of the associated device.
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