Quick Release Lid Options 1

[Shawthing6927]

Hi Everyone,

I am looking for some inspiration.

Any ideas on what to use to make a quick release lid for a container like shown. (see attached).

I am looking to use something that doesn't require any tools. The lid needs to be removable from the box so a standard hinge and latch wouldn't work. I can add potentially add some 'cross bars' within the box to fasten to if required. It will be seating down onto a foam gasket. The seal itself isn't too important.

Many Thanks!!

 

[drawoh]

Shawthing6927,

How much force should the retainer exert? Is there any reason why your lid cannot snap in place?

--
JHG

 

[Shawthing6927]

Hi there.

The lid could snap into place as long as it was easily removable and replaced. This by the way is made from 1mm sheet mild steel. What snap into place design are you thinking about?

Thanks

 

[drawoh]

Shawthing6927,

You configure your sheet metal so that there is a springy retainer. How much force should your cover withstand without coming off?

Your questions are completely open-ended. I am not sure you know what you are doing. Draw out your enclosure, including the lid. Start writing out notes. What user action should cause the lid to come off? What user action should the lid survive? Try stuff out! If there is an automatic procedure for designing stuff like this, we can all be replaced by robots.

People think we are smart because we solve problems. Solve some problems.

--
JHG

 

[hendersdc]

Magnets!

 

[EngineerTex]

How firmly does it need to be attached? Is this in your backyard or will it be bolted to the tail end of a flatbed trailer, hurtling along at 85mph with a 30mph headwind?

Brake a lid that is 1/4" larger all around and epoxy some magnets to the underside of it. Boom. Done.

Engineering is not the science behind building. It is the science behind not building.

 

[djhurayt]

How about slide apart hinges, don't know what they are called. But once you open the lid, it slides left or right a small amount to let the pin pull out of the other hinge half.

 

[Shawthing6927]

I am not sure why but I can't reply directly to your posts.

This box will be sat in a lab environment. So no vibration or real significant forces. Forces will be very minimal like 1 millibar.

I am looking for a really cheap and cheerful way of locking the lid in place and removing.

Immediate thoughts of mine were a brace bar across the box and using some sort of thumb screws to attach the lid. Or a hinge which the lid can easily be 'un hooked' from and reattached.

Just seeing if there are any other innovative ideas out there which could be even simpler.

Thanks

 

[LittleInch]

At 1mm thick this box must be pretty small?? and have no force on the lid?

So try a castellated edge where there is an edge which moves a small distance before coming off.



Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[MacGyverS2000]

Some matching indents in the lid/box will ensure a snap fit. If the box indents are slightly lower than those on the lid, you can get some pretty decent pressure/holding force.

Dan - Owner

http://www.Hi-TecDesigns.com

 

[hendersdc]

You can mount any of the off the shelf latches from these guys:[URL unfurl="true"]https://www.southco.com/en-us/[/url]

 

[LittleInch]

Why not just some elastic and a hook and ring?

You're not giving us much to go on here...

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[zeusfaber]

Do you need to be able to replace the lid after it's been released for the first time.

Turning the edges of the lid over (a bit like an old biscuit tin, but not necessarily as elegantly), then holding it on with a turn of insulating tape (make that "quick release" by turning one end of the tape over to make a tab) would meet the spec you've given us so far.

I am not sure why but I can't reply directly to your posts.

It's not just you: The way these forums work, all anybody can do is to add to the end of the complete thread. Nobody is able to append replies to individual comments. Has some disadvantages, but it does help keep focus on one collaborative conversation rather than lots of small discussions.

A.

 

[MintJulep]

Rubber bands.
Set a rock on it.
Scotch tape.


Engineers solve quantified problems.

Quantify something.

 

[dgallup]

Go to Wally World or any big box store and look at the shelves and shelves of containers with snap on and/or locking lids.

----------------------------------------

The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

 

[btrueblood]

"This box will be sat in a lab environment. So no vibration or real significant forces. Forces will be very minimal like 1 millibar.

I am looking for a really cheap and cheerful way of locking the lid in place and removing. "

Paint a smiley face on the rock that Mint suggested.

 

[SnTMan]

Close: Evacuate the air from the box.
Open: Admit air into the box.

Simple, eh?

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[1gibson]

Put a block of wood inside that fits tight against the edges, to use as backing.
Put the lid on, and use a punch and hammer to make a few dents through both sheets.
These will fit together and provide a small locking force, and probably a nice cheerful "snap" when closed.

 

[monkeydog]

https://www.uline.com/Product/Detai...VD1uGCh3rNQUaEAQYBCABEgKWW_D_BwE&gclsrc=aw.ds

 

[Compositepro]

Used ammo boxes.

https://www.ebay.com/itm/PA120-40MM...496615?hash=item3b0ac115a7:g:T20AAOSwCU1Yq2I3