1. Seat lift for Easy Lift manual wheelchairs $2.9 Billion - - PowerPoint PPT Presentation

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1. Seat lift for Easy Lift manual wheelchairs $2.9 Billion - - PowerPoint PPT Presentation

Nov 30, 2023 219 likes •311 views

1. Seat lift for Easy Lift manual wheelchairs $2.9 Billion manual wheelchair market (2018) Compact Users Easy to use voice Stable $ $1000 - $2000 CUSTOMER NEED PRODUCT ATTRIBUTE ENGINEERING SPECIFICATION Convenient elevation and

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Seat lift for manual wheelchairs

1.

Easy Lift

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$2.9 Billion

manual wheelchair market (2018)

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User’s voice

Compact Easy to use Stable $1000 - $2000

$

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CUSTOMER NEED PRODUCT ATTRIBUTE ENGINEERING SPECIFICATION

Convenient elevation and lowering

  • f seat to perform activities

Translation range Translates 6” vertically in < 5 seconds Controlled elevation and lowering Translation capacity Average person exerts < 15 W of elevation power; lowers at < 5 in/s Locks elevation and holds user at any height within range Locking mechanism Gas spring oil chamber locking mechanism supports up to 400 lb Can be installed on a wheelchair for extended use Wheelchair compatibility Retrofits on top of standard wheelchair seat size of 18” x 18” User can lean forwards, backwards, and sideways to perform activities Stability Device does not tip over, remains flat on wheelchair seat Lightweight, portable Weight Device weighs < 10 lb

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Translation mechanism

gas cylinder pulley system scissor lift rack and pinion seat frame supporting bracket gas cylinder

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Control interface

bicycle brake push button push paddle

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Next steps

Addressing mockup model feedback Improving stability of device Simplifying and adapting installation process

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Citations

[1] Steelcase Chair Parts, Steelcase 465 Think Chair Replacement Gas Cylinder, https://www.steelcasechairparts.com/shop/gas-cylinders/steelcase-465-think-chair-replacement-gas-cylinder/, (Accessed 10/15/2018). [2] Felder Machinery Imports, FAT 300 Scissor Lift Table, https://www.feldercanada.com/products/felder-420-421, (Accessed 10/16/2018). [3] AliExpress, Bike Bicycle Lift Ceiling Mounted Hoist Storage Garage Pulley Rack 45 LBS Capacity Durable Metal Black Lift Assemblies, https://www.aliexpress.com/item/Hot-Sale-Bike-Bicycle-Lift-Ceiling-Mounted-Hoist-Storage- Garage-Hanger-Pulley-Rack-Metal-Black-Lift/32803975101.html, (Accessed 10/16/2018) [4] Kissing and Hanover, Pfaffsilberblau presents with new ZWW Ex wall-mounted rack and pinion jack for use in potentially explosive and hygienically critical areas, https://www.presseagentur.com/pfaffsb/detail.php?pr_id=1774&lang=en, (Accessed 10/16/2018) [5] The Home Depot, Inc., 12 in. Chrom Office Chair Gas Lift Cylinder with 350 lb. Load Rating, https://www.homedepot.com/p/Katu-12-in-Chrome-Office-Chair-Gas-Lift-Cylinder-with-350-lb-Load-Rating-CW- 80/206856317, (Accessed 10/16/2018). [6] The Bike Shack, Brakes, https://provincetownbikeshack.com/index.php?m=sales, (Accessed 10/16/2018). [7] Sparkfun, Mini Pushbutton Switch, https://www.sparkfun.com/products/97, (Accessed 10/16/2018). [8] Olenin, G., 2016, “Design of hydraulic scissors lifting platform”, B.S. Thesis, Department of Mechanical Engineering and Productionn Technology, Saimaa University of Applied Sciences. [9] Medline, Medline MDS805162 Aluminum Forearm Crutches, Youth, Pack of 2, https://www.amazon.com/Medline-MDS805161-Aluminum-Forearm- Crutches/dp/B00083DFPQ?keywords=crutches&qid=1539300633&sr=8-11&ref=sr_1_11&th=1, (Accessed 10/13/2018). [10] McMaster-Carr, Gas Springs, https://www.mcmaster.com/gas-lifts, (Accessed 10/14/2018). [11] Duro-Med, DMI Polyfoam Wheelchair Seat Cushion, Standard Foam Seat Cushion for Chairs, https://www.amazon.com/Polyfoam-Wheelchair-Cushion-Standard- Pressure/dp/B000FZVTPU?keywords=wheelchair+cushion&qid=1539270810&sr=8-6&ref=sr_1_6, (Accessed 10/13/2018). [12] Alter, L., The Vycle is a human powered elevator, https://www.treehugger.com/sustainable-product- design/vycle-human-powered-elevator.html, (Accessed 10/13/2018).. [13] Allegro Medical, Roho Enhancer Cushion, https://www.allegromedical.com/cushions-covers-backs-c544/roho- enhancer-cushion- p569261.html?CS_003=9164468&CS_010=1b880b502fc601326343000c298f9c78&gclid=EAIaIQobChMI8Kyqv8KM3gIV CluGCh26Cw1NEAQYASABEgIpkPD_BwE#788+569261+03, (Accessed 10/17/2018). [14] Uline, Manual Lift Table - Double Scissor , 770 lb, 36 x 20”, https://www.uline.com/Product/Detail/H-1784/Lift- Tables/Manual-Lift-Table-Double-Scissor-770-lb-36-x-20?pricode=WA9216&gadtype=pla&id=H- 1784&gclid=Cj0KCQjw6fvdBRCbARIsABGZ- vT8jHBmzqKLMsdT1NmdO51aME6KIV_B0PyY7j2lP747xi6aOKgtYjYaAntLEALw_wcB&gclsrc=aw.ds, (Accessed 10/13/2018). [15] Varidesk, Varichair, https://www.varidesk.com/products/standing-desk-chair- varichair?c3ch=PLA&c3nid=291244552487&gclid=Cj0KCQjw6fvdBRCbARIsABGZ- vS6L8qYb92xNKMICQG7p8PQbZf5JuzLaPl2dbCjJj4DN5FXWnQAWlcaAlvHEALw_wcB, (Accessed 10/13/2018). [16] REI, Avid FR-5 Brake Levers, https://www.rei.com/product/751084/avid-fr-5-brake- levers?CAWELAID=120217890000811067&CAGPSPN=pla&CAAGID=15877513960&CATCI=pla- 290805469376&cm_mmc=PLA_Google|404_41683|7510840015|none|aa2742d5-1cd5-4c69-a76e- be600ef54b2a|pla-290805469376&lsft=cm_mmc:PLA_Google_LIA|404_41683|7510840015|none|aa2742d5-1cd5- 4c69-a76e-be600ef54b2a&kclid=aa2742d5-1cd5-4c69-a76e- be600ef54b2a&gclid=EAIaIQobChMIm8amuK6M3gIViFmGCh3OTwlSEAQYBCABEgIWDvD_BwE, (Accessed 10/17/2018). [17] Duro-Med, Duro-Med Chair Lift, Chair Assist, Chair Seat Lift Assist Cushion, Black, https://www.amazon.com/Duro-Med-Chair-Assist-Cushion-Black/dp/B000BO9W5O, (Accessed 10/17/2018). [18] The Betty Mills Company, Apex-Carez Upeasy Seat Assist Standard Manual Lifting Cushion, Navy Blue, 1/EA, https://www.bettymills.com/upeasy-seat-assist-standard-manual-lifting-cushion-navy-blue-1/ea-apex-carex- rmupe1?utm_source=cpc- strat&utm_medium=cpc&utm_campaign=parts&utm_keyword=INDRMUPE1&utm_content=Medical&gclid=EAIaIQo bChMIuqmVzcGM3gIVAkwNCh0yLA_xEAkYASABEgK1A_D_BwE, (Accessed 10/17/2018).