Why do we still use bobbins?

[toxo]

2 minutes ago, chuck123wapati said:

You guys really think no one's tried to figure this out? Just imagine the man-hours lost by big businesses to changing and filling bobbins since their invention in the 1800s. I think just about anyone who's filled and changed more than one bobbin has pondered this same thing, though lol. 

Of course that's relevant and I don't understand what goes on underneath the hook but can you not agree that IF you could get a sealed tube coming from below, going through the center of the hook so it doesn't interfere with it and coming out where the bobbin current sits it at least SEEMS like it would work?

[AlZilla]

39 minutes ago, toxo said:

 ... and I don't understand what goes on underneath the hook ...

... through the center of the hook so it doesn't interfere with it and coming out where the bobbin current sits ... 

Exactly - you should study just what's happening when the stitch is formed.

Then you'll see that you can't just wrap a single strand of top thread around the bobbin thread without the entire bobbin spool passing thru the loop of the top thread. 

I want it to be possible. Maybe your lack of understanding why it can't be done has allowed you a fresh perspective. I'd love to see a drawing or a model.

[toxo]

1 hour ago, AlZilla said:

Exactly - you should study just what's happening when the stitch is formed.

Then you'll see that you can't just wrap a single strand of top thread around the bobbin thread without the entire bobbin spool passing thru the loop of the top thread. 

I want it to be possible. Maybe your lack of understanding why it can't be done has allowed you a fresh perspective. I'd love to see a drawing or a model.

OMG!  You said, "you can't just wrap a single strand of top thread around the bobbin thread without the entire bobbin spool passing thru the loop of the top thread."

That's EXACTLY what happens every time a stitch is made. The bobbin doesn't move AT ALL. The only thing that moves is the hook. Show me where the bobbin leaves where it sits and passes through anything? If you're talking about the thread going AROUND the bobbin CASE that also doesn't move, I'm not suggesting that that will change, in fact nothing will change from the way it works now except the thread coming up from the center of the revolving hook.

[AlZilla]

2 hours ago, toxo said:

Show me where the bobbin leaves where it sits and passes through anything?

Is the loop going around the bobbin any different than the bobbin itself passing thru the loop? No. The top thread can pass around it because there's no stray thread feeding into the bottom.

If the bobbin thread is coming from somewhere else and going thru the bobbin case ... The loop can't go around the bobbin case. The bobbin thread would be in the way.

You must have a sewing machine around there somewhere. Open it up and see for yourself. Watch the thread go around the bobbin case and ask yourself how that would happen if there were a thread passing into it. 

No mas.

[toxo]

17 minutes ago, AlZilla said:

Is the loop going around the bobbin any different than the bobbin itself passing thru the loop? No. The top thread can pass around it because there's no stray thread feeding into the bottom.

If the bobbin thread is coming from somewhere else and going thru the bobbin case ... The loop can't go around the bobbin case. The bobbin thread would be in the way.

You must have a sewing machine around there somewhere. Open it up and see for yourself. Watch the thread go around the bobbin case and ask yourself how that would happen if there were a thread passing into it. 

No mas.

I'm gonna try just once more because I can see what you can't and I know there must be others out there that know I'm right but they're not coming forward so I'm gonna leave it after this post. I'm beginning to think you must be a troll windind me up . Either that or YOUR picture is so strong in your head that you can't see what I'm talking about.

Let's get back to basics. The bobbin THREAD, not the bobbin itself comes from the bobbin, goes through the tension mechanism in the bobbin case and is picked up by the hook along with the top thread right? From there the hook carries the top thread and the bobbin thread around the bobbin case and comes back to where we started.

Now let's go back to where we started. ie, the bobbin THREAD coming from the slit and the tension mechanism.

Now. just humour me and imagine that NONE of that process is changed at all EXCEPT that there's NO bobbin at all. What used to be called the bobbin thread is now called something else because there is no bobbin any more, just a thread coming up from the center of the space that the bobbin used to occupy in the center of the bottom of the hook mechanism and going through the same tension mechanism as usual.

If you can't see it now I give in.

[AlZilla]

11 minutes ago, toxo said:

just a thread coming up from the center of the space that the bobbin used to occupy in the center of the bottom of the hook mechanism and going through the same tension mechanism as usual.

OK, where does this thread come from? How does it get into the "center of the space that the bobbin used to occupy"?

[toxo]

1 minute ago, AlZilla said:

OK, where does this thread come from? How does it get into the "center of the space that the bobbin used to occupy"?

From a cone sitting somewhere below. It's the principle I'm trying to get across. I know it's possible. The route that the thread takes from the cone is something sewing machine people can work out. I imagine a tube of some kind that's sealed at both ends so as not to interfere with oiling and such.

[Handstitched]

@AlZilla a bit like ' where does the chicken come from' .......sorry, couldn't  help myself  

 but would be so handy not to keep refilling bobbins on long runs, like shade sails, horse rugs, etc. I just pre-load 2 -3 bobbins before I start to save time.

HS

[kgg]

26 minutes ago, Handstitched said:

I just pre-load 2 -3 bobbins before I start to save time.

Why??? To help speed up the bobbin winding process even further is to have a bobbin being filled while you sew.

I always have a second spool of thread in the color and size setup that is dedicated for winding the bobbins.

i) install a empty bobbin on the winder,

ii) thread the bobbin,

iii) engage the winder.

iv) bobbin fills as I am sewing

v) bobbin winder disengages went the bobbin is full

When the bobbin in the machine runs low or is empty replace I replace it with the newly filled bobbin. Rinse and repeat. 

kgg

 

[toxo]

43 minutes ago, Handstitched said:

@AlZilla a bit like ' where does the chicken come from' .......sorry, couldn't  help myself  

 but would be so handy not to keep refilling bobbins on long runs, like shade sails, horse rugs, etc. I just pre-load 2 -3 bobbins before I start to save time.

HS

The bit I hate is when you're about to start a decent run. You have to check the bobin and then 9 time out of 10 you waste what's left on there and put in a new one to make sure it's not gonna run out.