Motorized dropper post assembly
AssigneeTrek Bicycle Corporation
InventorJon Quenzer
Life of this patent
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Abstract
A dropper post assembly includes a lower tube and an upper tube slidably mounted to the lower tube. The assembly includes a motor with a motor shaft that rotates bi-directionally. The assembly also includes a lead screw that is directly or indirectly mounted to the motor shaft such that the lead screw rotates in unison with the motor shaft. The assembly also includes a lead screw nut threaded onto the lead screw and mounted within the upper tube such that the lead screw nut is unable to rotate relative to the upper tube. The assembly further includes a lead screw sheath configured to receive at least a portion of the lead screw that extends past an upper end of the lead screw nut.
Claims20
A dropper post assembly comprising:
- a lower tube;
- an upper tube slidably mounted to the lower tube;
- a motor with a motor shaft that rotates bi-directionally;
- a lead screw directly or indirectly mounted to the motor shaft such that the lead screw rotates in unison with the motor shaft;
- a lead screw nut threaded onto the lead screw and mounted within the upper tube such that the lead screw nut is unable to rotate relative to the upper tube;
- and
- a lead screw sheath configured to receive at least a portion of the lead screw that extends past an upper end of the lead screw nut.
Dependencies are inferred from the claim text.