Lifting mechanism for an exercise apparatus

Details Lifting mechanism for an exercise apparatus Lifting mechanism for an exercise apparatus

2005-11-15

2005-11-15

Crow, Stephen R. (Department: 3764)

Exercise devices

Involving user translation or physical simulation thereof

Treadmill for foot travel

Reexamination Certificate

active

06964632

ABSTRACT:
A lifting mechanism for an exercise apparatus having a reduction gearset and a driving gear meshing with the reduction gearset within a housing wherein the driving gear includes an axial threaded hole and an axial bearing. A spindle passes through the housing and the axial bearing and engages the axial threaded hole of the driving gear. Meanwhile, a socket corresponding to the spindle is installed on the external side of the housing. The housing is made of lightweight material. Moreover, a first and a second piece for supporting the spindle are made of high strength material and fastened on both external sides of the housing by metal screws, thereby forming a supporting frame with high strength and light weight.

REFERENCES:
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patent: 5855537 (1999-01-01), Coody et al.
patent: 6719669 (2004-04-01), Wang et al.
patent: 6730002 (2004-05-01), Hald et al.
patent: 6761667 (2004-07-01), Cutler et al.
patent: 6811518 (2004-11-01), Lin
patent: 6811519 (2004-11-01), Kuo

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