| 摘要 |
A thumbturn assembly for use with a door lock has a rose body having a face wall and adapted to be secured to a door panel. The rose body has a central hub concentric with an axis and has a bearing ring merging with the face wall and the hub and projecting from the face wall. A thumbturn has individual side walls connected by end walls and a front wall. A pair of semi-cylindrical journal walls extend from the side walls through the hub symmetrically with the axis. The journal walls merge with thrust walls merging with the side walls and facing the bearing ring. The ends of the journal walls extend through openings in the end wall of a cap having a drum wall concentric with the axis. The ends of the journal walls are bent to provide lugs urging the cap toward the hub and urging the thrust walls toward the bearing ring. The cap end wall also has an opening for a driver bar.
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