Selection of an optimal lift assist mechanism
AssigneeMechoshade Systems, LLC
InventorsXi Ming Liarno, Joel Berman, Stephen Hebeisen, Eugene Miroshnichenko
Life of this patent
Estimating the term…
Abstract
A desired range of lift force to raise a window shade is used to select the window shade hardware such as, for example, the optimal LAM. A desired lift force may be 5 pounds for ADA compliance. However, if the user wants to exert less effort to lift the window shade, the user may request an increased lift force of 6 or 7 pounds. Therefore, if a lift force range between 3-8.5 pounds is desired, the system selects the optimal LAM to maintain and guarantee that the lift force required to operate the shades will not exceed the desired range of between 3-8.5 pounds.
Claims20
A method comprising:
- selecting an optimal lift assist mechanism (LAM) based on a desired range having a minimum amount of lift force for operating a window shade to avoid excessive momentum on the window shade and a maximum amount of lift force for applying to operate the window shade;
- and
- incorporating the LAM into a window shade system.
A method comprising selecting an optimal lift assist mechanism (LAM) based on a desired range of lift force, wherein the selecting the optimal LAM comprises:
- determining, by the processor, pull forces for the window shade at multiple locations based on a hanging weight, a RUD and a number of turns for the window shade at the multiple locations;
- selecting, by the processor, a first LAM based on at least one of a maximum pull force of the pull forces at the multiple locations being greater than a pull threshold, compatibility with a first shade tube, a number of turns being above a turn threshold for the window shade at the multiple locations, pull forces being within a pull force range at the multiple locations, or the first shade tube being below a deflection limit and a weight limit;
- and
- suggesting, by the processor, the first LAM for use with the window shade.
A system comprising:
- a processor;
- and
- a tangible, non-transitory memory configured to communicate with the processor, the tangible, non-transitory memory having instructions stored thereon that, in response to execution by the processor, cause the processor to perform operations comprising:
- determining, by the processor, pull forces for the window shade at multiple locations based on a hanging weight, a RUD and a number of turns for the window shade at the multiple locations;
- selecting, by the processor, a first LAM based on at least one of a maximum pull force of the pull forces at the multiple locations being greater than a pull threshold, compatibility with a first shade tube, a number of turns being above a turn threshold for the window shade at the multiple locations, pull forces being within a pull force range at the multiple locations, or the first shade tube being below a deflection limit and a weight limit;
- and
- suggesting, by the processor, the first LAM for use with the window shade.
Dependencies are inferred from the claim text.