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Old 14.03.2018, 00:51
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collapsible/ expandable / hinged handle

Hi,
I'm looking for an expandable pole or handle.

One type might be those used on suitcases, e.g. here: https://www.scienceya.com/lower-the-...ter-stability/

or on trolleys, e.g. here:
https://www.alibaba.com/product-deta...356226874.html


Alternatively, a folding handle such as here:
https://handtrucks2go.com/Magliner-E...ng-handle.html

or hinged as here:
https://www.dogspot.in/large-poop-sccoop/

or a collapsible structure such as here:
http://www.furwheels.com/category/ha...-ramp-for-car/

or telescopic as in here:
https://guide.alibaba.com/shop/fibli...008297279.html
or here
https://www.amazon.co.uk/CampTeck-Te.../dp/B06XHK5LK2

or fold-up as in here:
https://philmedicalsupplies.com/prod...tick-foldable/.

The handle will be used on a custom-built transport box, so it needs to be at least as strong as a suitcase handle. I know the blind stick and the fishing net shown above would not be strong enough, but something sturdier, with such a mechanism, could work.

Since we're at prototype stage, however, we're not set on its necessarily being from a suitcase. Any old thing (or any pair of things) along the lines of the other images here would do, as long as the handle is somewhat robust, and a maximum of about 25cm wide.

Please would anyone who has something of this sort at home, perhaps on a suitcase or other structure which is otherwise of no further use, contact me? Thanks.

Ideally around Zurich or Winterthur.

Thanks very much.
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Old 14.03.2018, 09:19
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Re: collapsible/ expandable / hinged handle

I am not sure what you mean by the constraint of the 25cm wide. Is this the handle portion or the width of the bottom?

An idea might be to use a "dolly" with collapsible handle and bolt it into the bottom of your thing and fix the upright portion to the side of it using whatever system makes sense based on what "it" is.

Here are a couple of inexpensive options from Coop Brico/Bau und Hobby. The links are in FR as I do not know the DE word for dolly (diable/chariot in FR). You will get the idea. No dimensions are shown unfortunately.

Link 1: https://www.bricoetloisirs.ch/gros-o...P5822090-39/fr

Link 2:https://www.bricoetloisirs.ch/gros-o.../P4726523-1/fr
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Old 14.03.2018, 20:28
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Re: collapsible/ expandable / hinged handle

Thanks, Verbier.

I meant the 25cm as maximum width at both the top end and the bottom, which latter would be attached to the box.

The box and its load together, while it is being wheeled along, will weigh up to around 15kg, maybe 20kg max. However, when standing still, it will be used on site as a load-bearing surface, up to 200kg.

I liked the creativity of your idea of bolting the box right onto a dolly. Thank you. However, those large dollies have structures/handles which are wider than 25cm. They are also heavier and less manoevrable than what we're hoping to achieve (effortless turning in narrow spaces, etc.). They are the more so when designed for heavier loads.

I might be able to get away with a much lighter kind of handle, if only I could separate the function of "telescopic handle" from the other function of "strong wheels and axle able to bear 200kg when stationary".

In prototypes, in another country, we compared 2 wheels with 4. To my surprise, we found 2 wheels more managable than 4. I say surprise because in other contexts (shopping-trolley, or suitcase) I find the 4-wheel versions a delight compared to the 2-wheel version. This seems to be a result of the high load-bearing requirements of this particular box, so that those 2 wheels need to be much bigger and stronger than the castor-like 4 wheels of a suitcase. Of course, the 2-wheeled box had legs/feet on the opposite two corners, so that the box, when stationary, rested on 2 wheels plus 2 feet.

I still have to shop around for wheels and, a bit trickier, for axels.
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Old 14.03.2018, 20:34
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Re: collapsible/ expandable / hinged handle

https://www.aweo.de/Trolligriffe
amazon.de

or at Swiss price.

You're looking for "Trollgriffe und Ausziehgriffe", in case your friend google asks you.
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Old 14.03.2018, 21:53
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Re: collapsible/ expandable / hinged handle

Thanks, Curley!

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You're looking for "Trollgriffe und Ausziehgriffe", in case your friend google asks you.
Can we please, for the Forum, have a Trollgriff? That'd be such a help around here, don't you think?
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Old 14.03.2018, 22:50
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Re: collapsible/ expandable / hinged handle

This is the one I've got and it's worth it's weight in gold. We've used it to drag flatpacks back from Ikea on the train, moved house for a few people, and I used to strap the cat basket onto it when he was going to the vet.

Last edited by Blueangel; 14.03.2018 at 23:16.
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Old 19.03.2018, 22:24
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Re: collapsible/ expandable / hinged handle

Yes, Bluangel, have dragged all sorts of things around on a similar trolley. They're truly marvellous.

Those tolleys of this type which are designed to take 200kg when moving, are simply too bulky for my purposes: we need to manoeuvre in small spaces. Hence the 25cm width restriction, for the handle. The trolley we need won't be transporting 200kg but it will, when standing still, be used as a table and have goods stacked on it which weigh about 200kg.

It seems that the handle itself need not be super heavy-duty.

I need to be sure that the stationary box can bear that weight. Therefore, I suppose I need either
  • sufficiently strong wheels and axel(s) or
  • some mechanism by which the wheels retract, leaving the box to stand level on strong legs/feet.
That's what I need to find.
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Old 20.03.2018, 13:23
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Re: collapsible/ expandable / hinged handle

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Yes, Bluangel, have dragged all sorts of things around on a similar trolley. They're truly marvellous.

Those tolleys of this type which are designed to take 200kg when moving, are simply too bulky for my purposes: we need to manoeuvre in small spaces. Hence the 25cm width restriction, for the handle. The trolley we need won't be transporting 200kg but it will, when standing still, be used as a table and have goods stacked on it which weigh about 200kg.

It seems that the handle itself need not be super heavy-duty.

I need to be sure that the stationary box can bear that weight. Therefore, I suppose I need either
  • sufficiently strong wheels and axel(s) or
  • some mechanism by which the wheels retract, leaving the box to stand level on strong legs/feet.
That's what I need to find.

Let me add a couple of more points. You said your co-workers said that 2 wheels were more mobile than 4. Can't be the case. My guess is that they used 2 swivel wheels and 2 fixed wheels like on a shopping trolley. With 4 swivel wheels, like on luggage" it will turn perfectly. And be much better than tilting the box to move it on 2 wheels (old luggage system). Give them a call to check.

Rather than your complicated retracting wheel system described above what about turning the box on its side or even upside down so the wheels are no longer on the ground before putting the 200kg on it. Since we don't have photos I can only imagine the box.

If this does not work, you can get short metal legs that can be screwed/unscrewed into holders that are fixed to the bottom of the box beside the wheels. Jumbo has them. Just be careful about the stability of the box - the legs need to be near the outside of the box.

As always, photos would be great to stimulate suggestions.
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Old 24.03.2018, 20:20
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Re: collapsible/ expandable / hinged handle

Thank you, Verbier. Good ideas in your post.
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Old 28.03.2018, 21:29
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Re: collapsible/ expandable / hinged handle

Here are some feet that are available at JUMBO. Each foot handles 50kg (so 4 x 50kg gets you your 200kg).

They also have a big selection of wheels.

Photos of each.
Attached Images
File Type: jpg IMG_9544.JPG (92.3 KB, 13 views)
File Type: jpg IMG_9543.JPG (173.8 KB, 9 views)
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Old 28.03.2018, 21:44
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Re: collapsible/ expandable / hinged handle

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you can get short metal legs that can be screwed/unscrewed into holders that are fixed to the bottom of the box beside the wheels. Jumbo has them.
If we chose such legs, we'd have them unscrewed for wheeling the box around, and then, when the box was parked in the right position, screw the legs into the holder before adding the load. Yes, that could work, as long as the process didn't take too long, and isn't too fiddly, and the legs didn't get lost when they weren't in action.

Thank you, I really appreciate the photos of of the legs and wheels, Verbier.

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Each foot handles 50kg (so 4 x 50kg gets you your 200kg).
I'm not sure that 50kg capability on each corner equals 200kg total load-bearing capacity. I seem to remember that there are formulas for calculating this, in relation to the surface area of the box, and will have to look that up. Or maybe someone from the "ask a scientist" corner will be along soon... please?
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Old 28.03.2018, 21:53
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Re: collapsible/ expandable / hinged handle

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I'm not sure that 50kg capability on each corner equals 200kg total load-bearing capacity. I seem to remember that there are formulas for calculating this, in relation to the surface area of the box, and will have to look that up. Or maybe someone from the "ask a scientist" corner will be along soon... please?
If the weight is centered between the 4 feet/wheels then 200 on the board works out to 50/corner.
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