Page Comparison

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Research

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Research

Conventional Car Seat Assembly:

Construction:

• seat frame

  • provides the structure of the seat (“skeleton”)

  • made of machined metal

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• NOTE: as seen in the top of the seat frame, those two cylinders allow for inclusion of head rest

• look into alloys / inform Sheila

• in some cases even made of carbon fibre

  • BMW i3 seats

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• circular cuts in the following frame

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• Wire frame

  • provide a structure for the padding/foam 

  • seen by those thin, wavelike metal wires

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• Overview of structure

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Racing Car Seat Assembly:

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• great video on manufacturing process of a carbon fibre based seat: Status Racing - The Making of a Ring Seat 

• video on pouring a foam insert for a bucket seat: Making A Custom Foam Insert for the Race Seat 
  

• wireframes are not utilized in such racing bucket seats

• Misc.

  • seems that padding is directly glued / adhered onto the frame

    • some padding is velcroed on

      • seat pan

      • not sure about the robustness of this

  • seat covering is stitched on after

  • Sample dimensions of existing bucket seats:

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• backrest lumbar support

  • extra support towards the lower back

• form should be contoured to the natural ‘S’ shape of the spine

  • prevents slumping and reduces stress on the spine and pelvis

• head rest

  • supports back of head and upper neck

• seat pan (bottom) length

  • allow for 1-4” (25.4 4mm - 101.6mm) of space b/w between edge of seat pan and back of knee

  • allow for blood flow

• seat pan should incline towards the back

  • creates a hammock that prevents the pelvis from sliding forward and ensures natural spine position

• chart for common causes of discomfort and reasons for them

• Image Added

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Archived Research

ARCHIVED - Conventional Car Seat Assembly:

(decided not to go with this due to complexity and weight)

Construction:

• seat frame

  • provides the structure of the seat (“skeleton”)

  • made of machined metal

...

• NOTE: as seen in the top of the seat frame, those two cylinders allow for inclusion of head rest

• look into alloys / inform Sheila

• in some cases even made of carbon fibre

  • BMW i3 seats

...

• to reduce weight look into weight reduction cuts

  • circular cuts in the following frame

...

• Wire frame

  • provide a structure for the padding/foam 

  • seen by those thin, wavelike metal wires

...

• Overview of structure

...

ARCHIVED - Mounting:

(as mounting was carbon fibre to carbon fibre, an adhesive will be used so the following does not apply)

• Aftermarket bucket seat consists of two components

  • bottom frame

  • side frame

• bottom frame mounts DIRECTLY to the chassis

  • with four mounting holes on the bottom

  • IMPORTANT: ASK/RESEARCH IF THERE IS ANY ROLL CAGE MEMBER BEHIND THE SEAT TO HAVE TWO ADDITIONAL MOUNTING POINTS

    • this improves safety as there is additional mounting points to secure the seat

• side frame connects the seat (WHICH SHOULD HAVE MOUNTING HOLES) to the bottom frame

• Below is equipment used for side frame to seat mount

  • Metric 10.9 bolts and spacers (top)

  • Nylock nut and fender washer (bottom)

  • Loctite / threadlocker

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• Great video on bucket seat installation: How to Install Racing Seats 

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Sketching

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CAD Concepting

Screenshots

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