The Power Enhanced Entertainment Table (PEET)

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The Power Enhanced Entertainment Table (PEET)

Students: Michael Dennis, Donald Talley, Benjamin Teague
Client Coordinators: Dr. Gary Edwards, United Cerebral Palsy of Birmingham

 

This table was requested for the use of eight clients with a range of physical disabilities that live in the ACIPCO House, a group home.  There was only one table in the facility at which all clients could sit. It was so high as to preclude any group of more than 2 people successfully engaging in an activity when seated around it.  This was a serious limitation to any group engagement, a problem in a setting where clients tended to stay isolated in their rooms or parked in front of the television.  The new table allows multiple client use at one time, to interact with each other.  Painted to be attractive to both the children and staff, the completed device is shown, along with users, in Figure 2.

 

TECHNICAL DESCRIPTION

 

The tabletop is made of 2 pieces of ¾-inch birch plywood (60 in. x 30 in.) coated with Minwax Polyurethane Sealer and Protector. There are two armrests located on each side of the client. Structural support is provided by four 30 in. A36 steel C-channels (4 in. x 1.72 in. x 0.321 in. thick). Two pieces support the tabletop while two pieces comprise the base to which the actuators and the casters are mounted. Constructed to meet the design standards as established by ANSI/BIFMA X5.5 1998, it was made to withstand a functional load of 200 lb., and a proof load of 300 lb. Dayton 115V AC linear actuators (load rating = 500 lb., retracted length = 20.25 in., travel distance = 12 in.) move the table up and down, and are fixed within telescoping tubing and bolted to the channel steel at the tabletop and base. Power is distributed to the actuators through a 12V DC power supply and solid-state relay switches.  The base was equipped with urethane casters (4 in. diameter, 154-lb. load capacity). Two of the casters are equipped with locks to hold PEET in place.  Ablenet Jelly Bean buttons (green and red) are used as the up and down controls. The buttons are attached to the table by Loc-Line modular hoses that are sturdy enough to suspend the buttons for access by the clients, yet flexible enough to be easily adjustable to different heights. A sensor system was added to prevent the table from lowering down onto the legs of the client. The Sick Optic VS/VE18/DC through-beam photoelectric sensor is positioned by a bracket located 2-in. below the table surface. Once the beam is broken the actuators stop lowering. The total cost of the device was $1,538.

27 - PEET
Figure 27.  The power-enhanced entertainment table (PEET) and users