| 摘要 |
Abstract The present invention provides a winder assembly for controlling the extension or retraction of a window covering, for example a roller blind. The winder assembly comprises a spindle having a head, a shaft extending from the head, and a location lug also extending from the head, in the direction of the shaft. The winder assembly further comprises a drive mechanism operable to control the extension and retraction of the window covering by rotation of the drive mechanism about the spindle, and a spindle cover. The spindle cover itself comprises an opening through which the shaft of the spindle passes, the cover releasably engaging the head of the spindle, and at least one location aperture receiving the location lug to define at least one position of the spindle relative to the cover. The location aperture may engage both walls of the lug, or it may allow the lug to move within it to define a path of rotational movement between the spindle and the cover. The invention is characterised by the side walls of the lug diverging as they extend outwardly from the head. The location aperture also has a pair of divergent side walls, to engage with the divergent side walls of the lug. The divergence of the side walls helps to resist accidental disengagement of the spindle from the spindle cover. C)C C) NtN CD) o I (0) |
