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The AsSITence’s purpose is to lower the likelihood of a fall occurring when an elder is standing up from a chair. This chair would be fully automated, so the user does not have to exhaust any other exertion.
The AsSitence will replace any everyday use chair, specifically chairs found in retirement homes and hospitals. It will help those with low mobility sit down and stand up with ease. The chair has a built-in piston that pushes the seat part of the chair to a 60-degree angle.
First, sketches were drawn to envision the invention and the functionality of it.
Below is a 3D rendering made on Fusion360.
Wooden Prototype
Wooden Prototype
There are 3 main components to the AsSITance: the chair itself, an air supply and air cylinder, and a computer for the controls and switch that has PLC. The design includes four rectangular legs; a flat square with a cut out for the piston and ledge; a flat square for the seat; a hinge, a thicker flat square for the back of the seat; two blocks cut at a 35-degree angle to hold the ledge for the piston; and a small flat rectangle piece placed at a 35-degree angle to hold the piston.
The 35-degree block of wood was attached to the bottom of the seat to support the piston which was attached and secured to the block with a u-metal bracket. The PLC switch was flipped it allowing the piston to fully extend which pushed up the added platform to lift and assist whoever is sitting over it.
To the right, is the PLC system where is assesses if the latched is open or closed. This allows the chair seat to either be up or down, which extends or retracts the piston.
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