| 摘要 |
<p>The deadbolt thumbturn assembly of the present invention includes a thumbturn including a thumbturn extension, which is inserted through a bushing collar and rose bearing, then secured with a retaining ring such tha t the thumbturn extension is able to rotate within the bushing collar. The threade d bushing collar is then inserted through the aperture of the deadbolt rose an d secured with a retaining ring forming a deadbolt thumbturn assembly such tha t the threaded bushing collar is able to rotate with respect to the deadbolt rose. The thumbturn assembly is then attached to the inside housing of a single cylinder deadbolt lock by fastening the bushing collar to the threaded boss of the inside housing such that the extension of the deadbolt actuator is inserted into a receptacle of the thumbturn. This design of the thumbturn assembly allows fo r attachment to the inside housing while still allowing rotation of the thumbturn to extend or retract the deadbolt. The novel attachment design allows the thumbturn to be manufactured from forged materials, adds to the aesthetic appeal, provides concealment for mounting screws, and is easily installed.</ SDOAB></p> |
