Sabtu, 27 Juli 2013

With the power behind kitchenaid mixer motors, why do you think they do not turn off when the head is tilted?

automatic pool cleaner instructions on Advanced suction pool cleaning robot - Baracuda MX8
automatic pool cleaner instructions image



John


I just tried to remove an attachment from a Kitchen Aid mixer and, not realizing what button/knob to push to loosen the attachment, turned it on with my hand on it. It yanked my hand pretty good and luckily damage was not worse but the whole incident makes me question...

The motor inside the mixer is (and needs to be) very powerful. Why on earth hasn't Kitchen Maid added a safety switch to the tilt head so that the mixer cannot be powered when the head is tilted up? Is there some need to have the motor on with the head tilted? I've seen plenty of power tools with far less power which have far more safety designed into the product.
While I appreciate Tom's answer below, there are a few things I take issue with.

1. Virtually every engineer, executive, secretary or janitor working for Kitchen Aid knows the following:

a. Most owners of the mixer will NOT unplug the unit each and every time attachments are changed.

b. All members of a household in which a mixer is present will not have read the entire operating manual.

c. People often make mistakes for a large variety of reasons.

and....

2. Error-proofing the mixer such that the motor cannot run when attachments are being changes is entirely possible.

After working extensively with both American and Asian automakers, one of many cultural difference I've noticed is what Tom stated. The Asians do not look at error-proofing and think "it can't be done," they look at it and think "it can be done, and if it is already being done, it can be done better."

Anyway, I digress. From reading this I think the answers to my question
I also find it amusing that electric mixers are a top contender when I search for "most dangerous kitchen appliances." Maybe it simply is because engineers cannot and will not make them safer.



Answer
It's impossible to idiot proof everything. Why would you work on any power equipment with power still applied? Especially since the operating manual specifically says never to do that.
You have a large brain that should be sufficient to protect you from this sort of mishap.
You're essentially asking how to protect you from yourself. Can't be done.

It's not a defect... you ignored the instructions. It's like crawling under a car when all that's holding it up is the jack and you didn't place jack stands like you're supposed to. Ignore the common sense part and no one can or will protect you.

BTW, what power tool with far less power has more safety designed into it? Hand drills are very powerful but there is nothing to keep them from energizing while changing bits. Same with my drill press. Nothing to keep it from starting while I have a chuck key inserted.
Can't get any safer than disconnecting power... like you were instructed to.

Direct from Kitchenaid:
"When using electrical appliances, basic safety precautions should always be
followed including the following:
1. Read all instructions.
2. To protect against risk of electrical shock, do not put mixer in water or other
liquid.
3. Close supervision is necessary when any appliance is used near children.
4. Unplug from outlet when not in use, before putting on or taking off parts, and
before cleaning."

EDIT:
So what I am noticing is that you speak in generalities. You still haven't named that power tool with far more safety build into it, that you mentioned.
As far as pulling the Asian vs. American mentality card, that's a crock. Easy to say, but you can't support the statement other than with your own anecdotal statement. Nonetheless, this is NOT AN ENGINEERING problem or issue. An interlock would be easy. So would unplugging the machine before you monkey with it, but you didn't do that. The latter is less expensive and more practical.
Guess what would happen if there were an interlock and it failed? You'd be wanting to sue. I'm not so sure you're not intimating that already with this supposed "design defect".
Learn your lesson already... keep your finger out of the light socket. (there's no interlock there, either)

Your statements about what "most owners" will or will not do are also unfounded and unsubstantiated. You made that up, too.
If you can't/don't follow instructions then THAT'S YOUR FAULT. Period.

I'm sick and tired of this mentality. Space heaters burn down homes all the time. So do matches. Or is is people using space heaters and matches that burn things down?
A car can be put into forward gear and the throttle stepped on even if when there's a store front full of people in front of you. GASP! Why aren't engineers doing something about that?? Surely the Asians have noticed this looming danger and are all over it!

The MOST dangerous thing in your kitchen is YOU. The fact that you and most of your friends (not most people) choose to ignore instructions, warnings, and cautions actually gives me hope for humanity as some of those genes will soon be removed from the pool.

Maybe all applicances should also have GFI built INTO them in case some idiot who wants to make toast next to his hot tub plugs it into an extension cord that's not on a GFI circuit?
Maybe toasters should have automatic doors on them to keep people from sticking butter knives into them while they're plugged in?
You getting the point yet? Probably not.

The bottom line, that you don't like and won't accept, is that there is NO TREND of people being injured by their stand mixers. The mixers that are the most dangerous are the hand and wand mixers with high-speed exposed blades. (you failed to research that before you listed "electric mixers" as a dangerous kitchen appliance) Perhaps that's the part that amused you.

Get a grip and stop blaming everyone for not protecting you from yourself. It can't be done and should not be done.
You couldn't figure out which button to press so you fumbled with it plugged in. Not good.... and contrary to what you were told not to do.

Here's another: Don't drive on the left side of the road in the US. It's not safe. There is nothing to stop you from doing this, even though the car has a lot of power. Just don't do it.

swimming pool?




mike


i have an indoor swimming pool in my house and its plain white with but i want to paint it...does anybody know with what kind of paint should i paint it and how long should i let it dry before i could refill it again


Answer
One of the most common pool surfaces is paint. Pool paint comes in many different colors, and is an inexpensive coating compared to other surfaces. There are three types of pool paint. Epoxy paint, for new construction, and pools painted previously with epoxy paint. It is long lasting, durable and will stand up to UV rays, automatic pool cleaners and chemical treatments. Epoxy paint will last about 7 - 10 years.

Another type of pool paint is chlorinated rubber base. Rubber base is not as durable or expensive as epoxy paint, but is a dependable, easy to use, inexpensive pool paint. It is easy to apply, comes in many colors and will last about 3 - 5 years.

Last but not least, is water based acrylic pool paint. This paint can be used on any type of surface, is easy to apply, and cleans up with water. This type of pool paint is ideal for commercial applications that are repainted on a regular basis. It should last about 2 - 3 years.

Whatever paint you use, it is important to follow manufactureâs instructions, follow recommended safety guidelines and make sure you prepare the pool properly. Preparation is the most important step in pool painting. Without the proper preparation the paint will not bond with the wall or existing surface.




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