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IBE Team 5 _______________________________________________________________________________________________________ _______________________________________________________________________________________________________ Reverse Engineering the Padded Swivel Seat Cushion March 2016

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Page 1: IBE Team 5thinkoutsideyourself.weebly.com/uploads/3/...swivel... · We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off

IBE Team 5 _______________________________________________________________________________________________________ 

 

_______________________________________________________________________________________________________ 

Reverse Engineering the Padded Swivel Seat Cushion 

 March 2016 

Page 2: IBE Team 5thinkoutsideyourself.weebly.com/uploads/3/...swivel... · We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off
Page 3: IBE Team 5thinkoutsideyourself.weebly.com/uploads/3/...swivel... · We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off

Bill of Materials 

Component  Quantity  Material  Function  Photos 

Gray Fabric  1  Microfiber  To protect foam pad 

Foam Pad  1  Polyurethane foam 

To cushion the user 

White Elastic  1  Fabric, band made of rubber 

To make the fabric topper 

stretch and fit the foam 

pad 

Plastic Ring (Two Sizes) 

2  Plastic  To aid in the 

swiveling of the seat cushion 

Page 4: IBE Team 5thinkoutsideyourself.weebly.com/uploads/3/...swivel... · We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off

Ball bearings  12  Chrome steel  These fit inside 

openings on the plastic rings so that the cushion can swivel 

           

Plastic disk  2  Plastic  These act as the base for the 

swivel seat cushion 

              Bolt  1  Steel  To hold the 

plastic disks 

together 

             No­Slip Padding 

1  Jute  To grip the car seat and keep the swivel seat in place 

             

   

Page 5: IBE Team 5thinkoutsideyourself.weebly.com/uploads/3/...swivel... · We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off

Cost and Measurements 

Cost of Materials and Manufacturer 

Material  Per Unit Cost  Manufacturer/Where to Purchase 

Foam pad  $35.00/ 82”x76” sheet ~$1.17/pad 

http://www.foamdistributing.com 

Grey fabric  $4.89/yard  http://www.joann.com 

White elastic  $8.51/6.4m $0.95/strip 

http://www.walmart.com 

Ball bearings  $0.04 per ball bearing  http://www.amazon.com 

Bolt  $0.31 per bolt  http://www.homedepot.com 

Plastic ring  $0.00808/sq in ABS Plastic ~$0.20 for both 

http://www.usplastic.com 

Plastic disk  $1.43/each  http://www.usplastic.com 

Page 6: IBE Team 5thinkoutsideyourself.weebly.com/uploads/3/...swivel... · We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off

Measurement of Padded Swivel Seat Cushion 

 

Foam Pad: 

● Height: 1 ⅜” ● Diameter: 15 ⅝” 

 

Plastic swivel/disk: 

● Height: ⅛” ● Diameter: 15” 

Bottom grip: 

● Diameter: 12 ⅝” 

White elastic: 

● Length: 28” 

Grey fabric cover: 

● Diameter: 20” 

Plastic ring 1 

● Diameter: 4.5” 

Plastic ring 2 

● Diameter: 11” 

Ball bearings 

● 7mm 

Steel bolt 

● Length: ½” 

 

 

 

 

 

 

 

 

 

 

 

 

   

Page 7: IBE Team 5thinkoutsideyourself.weebly.com/uploads/3/...swivel... · We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off

What we learned: 

(Problems, process of taking it apart, what we discovered about the product)

We opened the box and began the process of reverse engineering the Padded Swivel Seat Cushion. First, we took off the seat covering which was bungeed around the foam pad. Next, we pulled the foam pad apart from the plastic turntable. The foam was glued down the the plastic, but was easily removed. The turntable was two round plastic disks that were held together with one bolt through their centers. In between the two plastic discs were plastic rings with connecting  ball bearings to allow the base of the swivel seat to spin. We then started try to get the bolt out of the plastic disks. This provided us with our most difficult task when reverse engineering. The end of the bolt was hammered down, so there was no way of simply unscrewing it. Using needle nose pliers, we bent back the metal so that it would fit through the hole. Once we got it round enough, we hammered it through the hole. When the bolt was out we examined the items between the two plastic disks. The ball bearings were held in a black plastic thin ring. There were two of these bearing circles that helped the turntable turn, with an inner ring containing four ball bearings and an outer ring containing eight ball bearings.  

We learned a great deal from reverse engineering the Padded Swivel Seat Cushion. We saw what an efficient method of helping people turn in and out of a car seats was by using a system of ball bearings and rings in the middle of the seat. The grip material on the bottom of the seat was quite effective at keeping the seat in place while in the car. We realized that having a cushion on the bottom of the disks as well as the top would allow the seat to sit more comfortably in the seat of the car and not bend the plastic disks when the anybody sat down on it.  

Application of this product to our product: After going through the reverse engineering process, we found that many aspects of 

the product needed improvements. The fabric that covers the foam creates too much friction when users try to get out of the car, so a new fabric that has less grip is vital. In addition, the polyurethane foam pad is not comfortable enough for people aged 55 and up. They have expressed that comfort is a priority when looking for a product to help them get in and out of cars. Our team took this into consideration and determined that memory foam would serve as a much better material for a cushion.  The plastic piece that rests underneath the foam pad is also an issue because not all car seats are 100% flat, thus it is not possible for this product to work for most people. Many cars have deep bucket seats or contoured shapes that don’t allow the flat plastic disk to fit properly. 

The three main aspects that are vital to this assisted car entry product are comfort, versatility, and mobility.