Low friction gearbox for medical assist device
OwnerDaniel C. Simon, Patrik M. Ryneinventors
Life of this patent
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Abstract
In one exemplary embodiment of the present invention, a gearbox assembly for a medical assist device having a motor assembly and a leg support is provided. The gearbox assembly includes a worm configured to be operably coupled to the motor assembly, and a worm gear meshingly engaged with the worm. The worm gear is configured to be operably coupled to the leg support, and the worm and the worm gear are configured to transfer rotary motion from the motor assembly to the leg support upon initiation of a force applied to the leg support.
Claims9
A gearbox assembly for a medical assist device having a motor assembly and a leg support, the gearbox assembly comprising:
- a worm configured to be operably coupled to the motor assembly;
- and
- a worm gear meshingly engaged with the worm, the worm gear directly coupled to the leg support, wherein the worm and the worm gear are configured to transfer rotary motion from the motor assembly to the leg support upon initiation of a force applied to the leg support, the worm gear defining an adapter aperture;
- an adapter disposed within the adapter aperture and at least partially coupled to the worm gear with a key protrusion disposed within a recess of a wall defining the adapter aperture, the adapter configured to operably couple to the leg support.
A medical assist device comprising:
- a support frame including a support arm extending therefrom;
- a gearbox assembly coupled to the support frame, the gearbox assembly comprising:
- a worm;
- a worm gear meshingly engaged with the worm, the worm gear defining an adapter aperture;
- and
- an adapter disposed within the adapter aperture and at least partially coupled to the worm gear with a key protrusion disposed within a recess of a wall defining the adapter aperture, the adapter configured to operably couple to a leg support;
- and
- the leg support directly coupled to the worm gear, the gearbox assembly configured to provide a rotational force to the leg support.
Dependencies are inferred from the claim text.