An idea about Multi-tool, would you like it?

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Congratulations zhasl!!!

:thumbup: :) :thumbup: :) :thumbup:

It must feel wonderful to finally have your patent!
I know you've been working hard on this new tool for awhile now. I am sorry we here at BladeForums did not offer you much in the way of wisdom and advice. I must admit that when you first began posting here, asking about a multi tool design you were working on, I thought you were probably just another crackpot (like us!) fantasizing about some "perfect tool."

However, I was able to view your patent drawings, and I am very impressed!

The selective 1:1 leverage or compound leverage mechanism is very clever! Have you built any sample prototypes yet, to test the principle?

~Bob
 
It was quite a chore to get my computer to view the Chinese patent TIFF files though. For those of you who didn't here's a summary:

zhasl's patent is 32 pages long. The first 21 pages are Chinese text. (and I have no idea what it says.) There are then 11 pages of drawings and exploded views, which take some study to understand. Here are three of the pages:

page22x750.jpg

Above, page 22 shows the tool closed up. I think I'm seeing blades that open from the closed position, and blade locks that are sorta like a Vic (gripping surfaces on the outside edges) and sorta like a Blast or Fuse (in that they pivot, not slide.)

page24x750.jpg

Above, page 24 shows the tool opened up. What are those little latch thingies #221 and #216?
See below.

page25x750.jpg

The little latch thingies allow the pliers to switch from 1:1 leverage (Figure 7 & 8) to compound leverage. (figure 9 & 10)

(See it? Note how the plier jaws in figure 9 are extended out further than the jaws in figure 7)

Tell us more about this thing zhasl. And let me know what other pages you would like posted here.

~Bob
 
Thank Bob!
I am sorry I have not any sample prototypes, because it is difficut for me to find a factory.

The locking mechanism is BACKLOCK, but it is different with Leatherman Charge. The locking mechanism have springs for holding the tools (like screwdriver) at colse position.

The #221 and #216 are exserted parts of the little latch thingies for wheeling the latch thingies easly.

I could not post attachments, would you please post another pages if you are unpainful!

Thank Bob again!

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I think we missed some words in translation zhasl. I'm going to change a few of your words. I think this is what you meant?

zhasl said:
The locking mechanism is BACKLOCK, but it is different than the Leatherman Charge. The locking mechanism has springs for holding the tools (like screwdriver) in the closed position.

The #221 and #216 are extended tabs of the little latches for rotating the latches easily.
These "latches" hold the plier head in place. Rotate them 90 degrees, and it allows the plier head to be extended out, giving the user compound leverage like a SOG tool.
Neat.
 
zhasl said:
I could not post attachments, would you please post another pages if you are unpainful!
My wife is gone to the neighbors, so I am unpainful at the moment. :)

Here are some more pages:
page23x750.jpg

Page 23 above.
page26x750.jpg

Page 26 above.
page27x750.jpg

Page 27 above.
page28x750.jpg

Page 28 above.

zhosal, these drawings are pretty complicated. Tell us about what other features your multi tool has.
 
Hi, Bob.
The main features are:
1. the switch from 1:1 leverage (Figure 7 & 8) to compound leverage;
2. the locking mechanism can lock the tools at 90° or 180°;
3. the tools except pliers can be openned from outside;
4. the tools locking unit can prevent the handle moving when the users are using the screwdriver.
5. Some tools can be removed, these tools include small screwdrivers, tweezers, toothpick. The removed unit is whistle.
 
JOOLIESEWS said:
The selective 1:1 leverage or compound leverage mechanism is very clever!

zhasl said:
1. the switch from 1:1 leverage (Figure 7 & 8) to compound leverage

I'm not familiar with compound leverage. If this feature is good why the need to throttle back to "normal" 1:1 leverage? Can you please enlighten us? Thanks!
 
Most of the SOG multi tools have compound leverage pliers.

Good :thumbup: It multiplies the squeezing force of your hand, allowing you to grip things tighter.

Bad :thumbdn: The handles travel a long way in relation to the plier jaws. When trying to grip larger objects, the handles get so far apart that they can't be held in one hand.

Scroll down and check out the picture in post #26 http://www.bladeforums.com/forums/showthread.php?p=3967345#post3967345

I've never heard of a tool before that could be switched back and forth.
 
zhasl, just make sure the blades don't lock at 90 degrees. think about it: you're opening the blades then suddenly they lock at 90 degrees. then you have to unlock it again to fold it all the way to 180 degrees.

I think 90 degree locking is only good for screwdrivers. 90 degree locking would suck at the other implements, i'd imagine.
 
You are right, Andrew.
Just screwdrivers can be locked at 90 degrees and 180 degrees.
 
things i would like on a multitool:
Wire strippers
wire cutters (aka angle cutters/dikes)
an awl

however, i'm probably a very limited sample of the world of multitoolers out there as i am more geared toward electrician rather than multipurpose tool...

zhasl congrats on the patent...
 
zhasl said:
You are right, Andrew.
Just screwdrivers can be locked at 90 degrees and 180 degrees.

But still, maybe 95% of the time people would want to use the screwdrivers in a 180 degree locked position. Wouldn't it bother people if they had to unlock the screwdriver from the 90 degree position everytime they use the screwdriver? Something for you to think about :)
 
Andrew:thank your for your advices.

If 95% of the time people would want to use the screwdrivers in a 180 degree locked position, the 90 degree locked position should be removed.
 
Looks like it could be a real winner of a multi tool. Not sure if this was asked allready but how long do you think it will be before you can show a prototype of your tool. Hope were not talking years before you roll them out to the public.

Just another suggestion would love to see the pliers and philips/flat head made out of the same steel Craftman uses for there pliers and such. That would really make it a serious tool.
 
Thank you, everybody!
In fact, I am looking for a manufacturer to make the tool. If any manufacturer is interested in the invention, please contact me without hesitation.
 
Have you tried contacting SOG?
http://www.sogknives.com/contact.htm
They are most familiar with the current advantages and disadvantages of compound leverage. Maybe your selective feature would appeal to them? And it seems to me they should be about due for a new model multi tool.
 
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