lift on wheels and lower with manual levers a 300kg table

[reggio]

Good morning to all,
ask me for advice, this time the need is to lift on 4 wheels before and raise the 4 wheels to ground the 300kg table by manually operated levers.

In essence, when I have the need to move the work table, I must make the wheels appear so that it raises about 5mm the table and this remains precisely rested on the wheels,
When I find the position, I have to make the wheels disappear/sallow" for 5+5mm so that the feet of the table stand permanently on the ground.

I have 4 wheels and I can think about lifting/lowering the whole even in 4 stages (1 lifting/lowering) per wheel;
I must therefore raise 1/2 or 1/4 table with a lever,
such lever must be as favorable as possible and the least bulky possible.

Obviously I look for something commercial or pseudo-commercial to be able to experiment right away, I started looking for levers similar to those I attach, but for now I have found nothing useful, what would you suggest?

 

[meccanicamg]

Of course they exist, they are lever stops and there are different types and brands. There's a decoy American company doing everything you need. look at the catalogs on the site

 

[reggio]

Of course they exist, they are lever stops and there are different types and brands. There's a decoy American company doing everything you need. look at the catalogs on the site

Hello and thank you,
but I look for something that allows me a "report" of lever 100kg/10kg, while levers destaco, speedyblock and other similar (if I didn't look bad on the respective sites) I don't think they can give me this report (while I write I play with one that at most will have (in some positions) a ratio 1:1,2 while my need is to raise 1/4 or 1/2 table with minimal effort. . .

Uh... the fact is that I have the wheels also in an uncomfortable and narrow position where you struggle to exercise a great pressure, otherwise I would put a superleva and away...

 

[meccanicamg]

Hello and thank you,
but I look for something that allows me a "report" of lever 100kg/10kg, while levers destaco, speedyblock and other similar (if I didn't look bad on the respective sites) I don't think they can give me this report (while I write I play with one that at most will have (in some positions) a ratio 1:1,2 while my need is to raise 1/4 or 1/2 table with minimal effort. . .

Uh... the fact is that I have the wheels also in an uncomfortable and narrow position where you struggle to exercise a great pressure, otherwise I would put a superleva and away...

mount a sled and these http://www.destaco.com/standard-straight-line-action.html 280 kg per lever.... look at the catalogue

 

[marcof]

Good morning to all,
ask me for advice, this time the need is to lift on 4 wheels before and raise the 4 wheels to ground the 300kg table by manually operated levers.
In essence, when I have the need to move the work table, I must make the wheels appear so that it raises about 5mm the table and this remains precisely rested on the wheels,
When I find the position, I have to make the wheels disappear/sallow" for 5+5mm so that the feet of the table stand permanently on the ground.
I have 4 wheels and I can think about lifting/lowering the whole even in 4 stages (1 lifting/lowering) per wheel;
I must therefore raise 1/2 or 1/4 table with a lever,
such lever must be as favorable as possible and the least bulky possible.
Obviously I look for something commercial or pseudo-commercial to be able to experiment right away, I started looking for levers similar to those I attach, but for now I have found nothing useful, what would you suggest?

If you want commercial stuff, I think they already gave you directions. If you can build it you can use an eccentric system, with a fixed wheel on a plate which in turn has a disassed rear rotation pin compared to the 10-15 mm wheel pin (in your case) and attached to the bench frame. turning, by hand, the plate by means of a pipe inserted in a special hole the wheel rests on the ground, lifts the counter and when the two pins exceed the vertical the plate tends to turn on the opposite side, tipping that is prevented after a few mm by a stop on the bench frame that keeps the abaradam stable. perer descending the counter rotates the plate in the opposite direction by excavating the vertical of the two pins and assemblies to the ground all. with a small lever of 500 mm and a disassembly between the pins of 10 mm lift without problmema the counter. to build is a bitch. . .

I understand that explained so it may be unclear, but from where I write tonight I don't have the chance to make you a sketch even with paint if I wasn't clear enough (and I'm sure I didn't be...) if I can put something tomorrow.

 

[reggio]

I understand that explained so it may be unclear, but from where I write tonight I don't have the chance to make you a sketch even with paint if I wasn't clear enough (and I'm sure I didn't be...) if I can put something tomorrow.

thanks to all, marcof you were very clear, good idea, only I don't even have 500mm of leverage (sinking because I liked the idea: simple and with safe block).
In the end, I think we're going to look for or do something like this but reduced like this. http://www.rimaspa.com/it/10210.php