Final Movie

Manual

Instructables:

http://www.instructables.com/id/Detachable-Toilet-Seat/

http://www.instructables.com/id/Hand-lay-Up-Toilet-Seat/

Prototype- not tested

Like prototype 25 we could also test the textile but with the soft foam. This is not necessary  because she already said that the foam wasn't dense enough

'pictures'

Expected positive: 

Unexpected positive: 

Expected negative:

Unexpected negative:

Score: negative

Use:

Grouppicture

Prototype 25

Now we tested another cover (textile), this is a synthetic textile that they use to cover pools, to make it soft we use the yoga plate.

Expected positive: This feels soft

Unexpected positive: The textiles feels really good

Expected negative:

Unexpected negative:

Score: This prototype scores the best, beter than the other textile. We can add more layers of the yoga foam to make it as soft as possible

See example: 8 layers

Use:

Prototype 24

Like the previous prototype we used the same textile (tablenap) but here with the yoga foam underneath.

Expected positive: This feels soft

Unexpected positive: The textiles feels good

Expected negative:

Unexpected negative:

Score: This prototype scores better than the previous ones

Use:

Prototype 23

Like the previous prototype we used already our final chair. Here we covered the seating with soft foam and waterproof textile (tablenap)

Expected positive: This feels a bit soft

Unexpected positive: The textiles feels good

Expected negative: The foam is not dense enough so this is not soft enough, you feel the chair underneath.

Unexpected negative:

Score: Prototype scores better on the surface (textile) but even worse on the foam.

Use:

Prototype 22

We made already the final chair but we were not sure about the covering of the seat. It needs to be waterproof and hygenic so we don't have that much choices. For this prototype we use just a covering of foam from a  yoga plate. We can variate in layers.

Expected positive: This feels quite soft

Unexpected positive: 

Expected negative: Edges aren't covered yet, this is a bit anti-slip so not that easy during the transfer

Unexpected negative: You feel the pattern of the yoga plate, so it needs to be more smooth

Score: Prototype scores already quit good,on softness but can be better.

Use:

Prototyping part I

Mold:

CNC-milling:

Ideas final connection

The connection between the legs and the seating

- already used piece
-  magnets
- usual connections in healthcare devices, not available for us

Materials

After all the visits and consults it's time to discuss about the materials and the manufacturing process wich will be used in the final product. 

It is necessary to have clear the parts which will configurate the chair and how this will be joined to occupy as less space as possible. Also all the materials has to be waterproof because it will be used also in the shower. 

Materials 

Legs: For this we could use the same ones that we used in the prototypes (the adjustable) but we should add some piece in the top to make the connection easier and more safe. This piece could be of wood, which is easier to manipulate than metal and it wouldn't get wet because is inside the other tube. 

Base: -Some type of plastic, like thermoplastic, wich are used for garden and exterior furniture. This are resistant and hygienic (PP, PE,...).

-A layer of wood, if this would be very good coated with a waterproof tissue. 

Shape: For her comfort, the chair will include an ergonomic shape. To avoid problems with the water, the best option and the slightestwill be fabricate it with plastic or some type of fiber (carbon), making a mold. 

In the other hand, it is also possible to make the shape with foam and recover it very well.

Cover: A fabric that can resist and avoid the water so it can protect the internal materials. For example: Gore-Tex, Nylon or Vinyl, very used now, especially in the sports area. 

Also apply a stain-resistant treatment, which also makes the waterproof material. 

For the union of the cover with the rest of the chair it is possible to use a special glue, resistant to the water, commonly used in the swimming pools, or a plástic zipper. 

Materials

Cover: textile

Demands:

- hygenic
- waterproof
- smooth
- not anti-slip

Examples:


Foam:

Demands:
- hygenic

Examples:

http://rollimoden.de/Everything--for-the-bath/?XTCsid=il3epncr70rmmlg3rbsvq2hko5

https://www.my-airex.com/en/products/physio_rehabilitation/


Benchmarks:

https://www.bol.com/nl/p/almepro-douchezitje-zachte-toiletzitting/9200000025407524/
http://www.able2.nl/product/pr50648/zachte-toiletzitting

- Schuimrubber (inside)
- vinyl cover (outside)

http://www.advys.be/docs/312.pdf   (p.3-4)

- inside: fibers or schuimrubber
- outside: ?

Prototype 21

Prototype 21:

Based on previous tests: the separate legs would be the best option with the added strip for the grip and the soft seating. It would be better if the legs are a bit under an angle (Seating/grip used from prototype 13-14))

Expected positive: Grip is good, better on both sides. 

Unexpected positive: Assemblage without any problems, transfer is safe

Expected negative: This prototype is a bit to high but 3-4 cm lower would be oké

Unexpected negative: Hole need to be a bit bigger, now she can still feel her sitting bumps, stability is oké but can better. 

Score: Prototype good but still need a few adaptions (height, more compact, durable and long lasting)

In fact it need to be an combination with the adaptable legs from prototype 20. And the seating need to change a bit (hole a bit bigger and seat lower, grips on 2 sides)

Use:

Transfer:

Prototype 20

Prototype 20: separate legs in straight frame

Based on the good shape of the seating (prototype 10) the extendable legs can fit in to the seating.

In one leg we added a system to fix the leg in the seating

Fixation mechanism:

Expected positive: Good fixation

Unexpected positive: 

Expected negative: 

Unexpected negative: 

Score:

Use:

Failed prototype

This prototype we made first
But during testing it ourselves, it broke because it was not stable enough.
The hinges broke and the rope is not a good a idee.

Prototype 19

Prototype 19: test of new material sort of silicon baking mat

Expected positive: hygenic and waterproof

Unexpected positive: nothing (she finds it original)

Expected negative: The feeling is a bit strange, unpleasant

Unexpected negative: It is anti-slip and that isn't user-friendly during the transfer

Score: In comparison with the fake-leather, this is unpleasant

Prototype 18

Prototype 18: milled grip

Expected positive: Nothing special

Unexpected positive: Nothing special, it isn't bad

Expected negative: Not deep enough 

Unexpected negative: not really such an added value, she don't really used it

Score: In comparison with the added upricht strip this is not really that good

Use:

Prototype 17

Prototype 17: Soft smaller seating

Expected positive: Good shape , soft feeling (material feels oké)

Unexpected positive: Smaller can be a bit better

Expected negative: nothing

Unexpected negative: nothing

Score: This shape of the the seating is a bit better because it is bit more compact

Use:

Prototype 16

Prototype 16: extendable legs (based on brush steals)

Expected positive: User-friandly

Unexpected positive: You can plant the legs in the gound

Expected negative: Now to long

Unexpected negative: It can make the chair on stable if the legs are not the same hight

Score: It is not defined yet if this is better or not

Use:

Prototype 15

Prototype 15: folding legs inside with fixation by extra piece of wood

The legs can fold in eachother

Expected positive: nothing

Unexpected positive: The distance between the toilet and the wheelchair is not that big because on leg fit between the wheel and the footrest

Expected negative: not stable! It is a bit too high

Unexpected negative: 

Score: It is not that compact and not stable yet, so the score is very low

Use:

Prototype 14

Prototype 14: Grip, added strip on the side of the seating

Visible under the textile (piece of cardboard added)

Expected positive: Good grip

Unexpected positive: The dimensions are perfect, depth, width and hight are good

Expected negative: It would be better if the grip is on the both sides (to use it in the shower)

Unexpected negative: nothing

Score: In comparison with the other grips, this scores high (9/10)

Prototype 13

Prototype 13 soft high seating

This seating is quite high and on the left and right side it goes downward

Expected positive: Soft feeling

Unexpected positive: nothing

Expected negative: it can be a bit softer

Unexpected negative: nothing

A soft seating is needed, especially when she wants to use it in the shower as well

Score: This is quite good, in comparison almost the same is the other soft seating but a bit less compact

Use:

Prototype 12

Prototype 12: foldable system with crossed legs
(legs are restrained by block)

Expected positive: Good hight, safety is quite oké

Unexpected positive: It fits on the back of her wheelchair without touching the ground

Expected negative: Safety click system would be better, that it stays fixed when used

Unexpected negative: when leaning on side, it is still a bit shaky. Cross of the legs obstruct that the stool can go very close to the wheelchair

This model can't go bigger, otherwise it doesn't fit on her wheelchair

Score: This is a good foldable system, scores quite high 

Use:

Prototype 11

Prototype 11: foldable system

We used an existing foldable chair to test the principle.

Expected positive: Good mechanisme, good fixation (it can collapse inside because there's a safety piece added)

Unexpected positive: 

Expected negative: Too small to use as a chair, still quite big as foldable chair

Unexpected negative: A bit too high and not stable enough (legs need to be further away)

Score: The system is good, but it isn't quite compact yet, so not bad but not a really high score

Use:

To keep in mind: first testing

We've learned a few things after testing.

• She can't really feel her backside, so she can't say is if the plate is really comfortable
• We used an existing chair aand placed different seatings on it. The legs of the chair were not alway distibuted in the widest configuration. So this wasn't alway that stable because the legs need to support the real edges
• She always uses the toiletchair in an angle next to her. (90 degrees with her wheelchair or something in between) 
• The perfect height of the toilet depends on the wheelchair but she's planning to buy a second one. Adaptable legs could help this but this is not really necessary.
• She don't really need an extra handle but she just want some grip (an extra little piece on the underside or a little shape milled out of the underside)

General feedback : comparison  of prototype 11 with her own toilet..

Prototype 10

Prototype 10: adapted prototype 9

Here we cut off the back corners.

Expected positive: Good shape (outside and hole)

Unexpected positive: We can't go smaller it's just good

Expected negative: nothing

Unexpected negative: nothing

Score: In comparison with previous prototypes, this scores best (8/10) 

The shape is just big enough, she can still a bit grip in the back

Use:

Prototype 9

Prototype 9: Prototype 1 with bigger hole

With prototype 1 the outside size was ok but the hole was too small so we made it bigger.
We only focussed her on the size and the shape, not on the handles.

Expected positive: better than prototype 1, she doesn't feel her sitting bumps anymore

Unexpected positive: positioning of the hole quite good

Expected negative: nothing

Unexpected negative: nothing

Score: In comparison with previous prototypes (7/10)

This prototype is for her the best till now. Based on the size and the shape of the seating. To make it more compact, we look if we could make it a bit smaller. She don't really use the back so we could cut of a piece overthere. The front and the side are important for the transfer so there we keep our hands off.

Use:

Prototype 8

Prototype 8: Square seating connected with the wheelchair and foldable feet

The chair could click on 1 side on a tube of her wheelchair, this is more compact to fold.

-> By testing it ourself we peceived that the chair fold itself by leaning in the front, the connection piece can slide over the tube. It's to dangerous to use this system.

Expected positive: nothing

Unexpected positive: nothing

Expected negative: nothing

Unexpected negative: Prototype slides over tube, so the chair folds by itself. This is too dangerous to test with her

Score: 0/10

A prototype connected with her wheelchair is maybe compact but has a few disadvantages:

- You have only 1 size so this prototype can only used with 1 wheelchair

- Not usable in the shower 

Fail: 

Prototype 7

Prototype 7: Small toilet seating on platform of prototype 1

This go further on prototype 6 but with a bigger outside shape so maye it's more stable to do the transfer.

Expected positive: nothing

Unexpected positive: nothing

Expected negative: Not comfortable

Unexpected negative: The extra seating makes that she sinks skew. (The back is higher so she slides to the front) The extra toilet seating hasn't added value.

Score: In comparison with the other prototypes, the transfer is Ok but the seating has no extra value (4/10)

When we asked if it's necessary to make the real size of the toilet seating higher, she answered that it's not really necessary because with a flat seating she has more freedom to do the transfer.

Use: 

Prototype 6

Prototype 6: Small toilet seat

For small people this toilet seat sits comfortable but we don't know if this is also comfortable by using the prototype or to do the transfer.

Expected positive: nothing

Unexpected positive: nothing

Expected negative: She can't really find grip because of the small outer size.

Unexpected negative: The material can fold a bit, so the safety feeling is not Ok 

Score: In comparison with the other prototypes, this is not handy and safe (1/10)

The biggest problem her is the transfer and the stiffness of the material, we can try to make this better..

Use:

Prototype 5

Prototype 5: Round shape with small hole

This is the actual size of a tabouret, very small but easy to make compact

Expected positive: The seating is comfortable because of the soft skin

Unexpected positive: How smaller the outside shape of the chair, how closer the chair can stand against the wheelchair. So the stability increases.

Expected negative: Outside shape is too small and whole is also too small

Unexpected negative: not stable anymore when leaning on 1 side

Score: In comparison with the other prototypes is the shape is bad (3/10) but she likes the soft seating (6.5/10)

The shape is not good so we leave this, the skin is something to think about.

Use:

Unnecessary prototype

Unnecessary prototype -> prototype 3 transformed

Because she don't use the handle, it's not necessary to test with both handles

Expected positive: More stability?

Expected negative: The place bethween the handles is to small to sit, you need to do a transfer over the one handle.