Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Structure is coaxial – distinct member that restricts nut piece
Patent
1994-11-02
1997-04-08
Meyers, Steven N.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Structure is coaxial, distinct member that restricts nut piece
411948, 411955, 411120, 81461, F16B 3906
Patent
active
056181434
ABSTRACT:
A spindle nut and a locking device for securing the nut in a rotative position on a spindle. An anti-rotation spring and a back up plate are mounted on the spindle in a non-rotative manner with the back up plate in abutment with the bearings that rotatively mount the hub to the spindle. The back up plate has multiple grooves aligned with and arranged to receive multiple resilient tabs on the periphery of the anti-rotation spring. The tabs of the anti-rotation spring are formed to project axially from the spring. A flange of the nut has multiple slots around its periphery that are sized to receive a tab of the anti-rotation spring. A tool having extending ears that fit in the slots of the nut is utilized to install the nut on the spindle. The extending ears prevent the tabs of the spring from entering a slot of the nut until the tool is removed. As the nut is rotated by the tool, the nut abuts the anti-rotation spring. The extending ears and the face of the flange in combination force the radial tabs of the spring further into the grooves of the back up plate. When the nut is torqued to the desired level, the tool is removed allowing a tab of the spring to enter a slot of the nut due to its resiliency to lock the nut in a rotative position. Should a tab of the spring not be in alignment with a slot of the nut, the nut need only rotate a few degrees to place one of the slots of the nut in alignment with a tab of the spring.
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Cronin, II Philip J.
Dunlap Thomas F.
Williams, Jr. Lonnie G.
Wood David C.
Meyers Steven N.
Pham Tuyet-Phuong
Warn Industries, Inc.
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