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-   -   Bed that slides/rolls out from under a riser? Crazy or brilliant? (https://www.avsforum.com/forum/19-dedicated-theater-design-construction/3069120-bed-slides-rolls-out-under-riser-crazy-brilliant.html)

MinHeadroom 05-23-2019 11:28 AM

Bed that slides/rolls out from under a riser? Crazy or brilliant?
 
First off- the riser will go in after the last inspector visit. So code/shmode :)

I imagine a memory foam mattress under the riser won’t hurt, may even help, provided it’s a good fit.

Anybody who has seen my thread knows I have serious space constraints and large aspirations.

Edit- who had their front row on rollers on a track?

sirjaymz 05-23-2019 12:12 PM

Quote:

Originally Posted by MinHeadroom (Post 58089350)
Edit- who had their front row on rollers on a track?


I know @Little Chris put his second row on rollers in a space constraint room.

I would think you would have to make a mini-mini-riser to allow for some type of low profile wheel and platform to have the first row sit on, and then allow them to slide forward I guess?


Then you could put some grab handle below the front of the first row to be able to pull them forward and expose the bed behind the first row, in-between the riser and the back of the first row seats.

That could work, depending how high you make the riser. Your stringers would have to be something like 2x6, 16" OC to support the weight, and use like 2x16"s or something for the side walls of your riser.. or it would take allot of extra framing to make it work, but definitely doable.

sigma722 05-23-2019 12:47 PM

I imagine it would have to be a pretty high riser.

I saw someone else's theater recently that didn't go by the "standard" riser design. Instead of being 2x10/12 framed floor it was essentially a few 4x4 posts, and then essentially a deck built on top of that. It works really well for bass trapping since you don't have to deal with the vents that you'd have to do in a bass trap riser. But yeah potentially you could have like 6-9 4x4 posts, and in between the center and outer ones have a twin mattress that pulls out, with a deck framed on top?

All of it depends on the width of the room, and making the floor structurally sound.

BIGmouthinDC 05-23-2019 03:14 PM

The idea has potential, please share your progress. Find the bed first then build a space in the riser to fit. What you are looking for is a trundle bed, you just need the bottom part.



https://i.pinimg.com/originals/39/99...f544601807.jpg

BIGmouthinDC 05-23-2019 03:17 PM

they even make hardware that pops the bed height up if you want to get off the floor


http://www.hollywoodbed.com/site/ass...86/38p_alt.jpg

MinHeadroom 05-23-2019 03:32 PM

Bed that slides/rolls out from under a riser? Crazy or brilliant?
 
Thank you for the comments and I am now officially inspired! @little Chris’s WIP build was my light reading flying NYC to Denver.

I need a tall riser regardless, so accommodating the mattress height should not be a problem.

Now it’s time to get weird- this will involve the front row (of 3) sliding forwards too. I won’t lie, I’ve already searched for linear actuators since landing.

I’ll post plans before I start cutting wood :)

BIGmouthinDC 05-23-2019 03:43 PM

just put the front row seats on casters and call it a day, Or furniture gliders. I see linear actuators or a track as just being an unnecessary encumbrance in your plans

MinHeadroom 05-23-2019 04:19 PM

Quote:

Originally Posted by BIGmouthinDC (Post 58090566)
just put the front row seats on casters and call it a day, Or furniture gliders. I see linear actuators or a track as just being an unnecessary encumbrance in your plans



I know, i know, but I’m a home automation geek and the coolness factor is hard to ignore. I haven’t even begun to contemplate the possibilities of hue-style strip lighting in a deep red, and Barry White goes down to 80hz, amiright Big? You appreciate a re-purposed stripper pole! J/k

I will look into it within reason :)

BIGmouthinDC 05-23-2019 04:22 PM

I appreciate real stripper poles.

acras13 05-26-2019 07:19 PM

Please tell me you have a linear actuator ordered so the stripper pole rises from the floor into position .

Bigus 05-26-2019 09:21 PM

Lol.

I like this idea. The bed, not the stripper pole. Well, maybe both.

MinHeadroom 05-27-2019 12:35 PM

Bed that slides/rolls out from under a riser? Crazy or brilliant?
 
Quote:

Originally Posted by Bigus (Post 58102848)
Lol.



I like this idea. The bed, not the stripper pole. Well, maybe both.



Lol

So, it appears a full-bed’s width is 54”, so i should have around 60” to be safe.

Three of these guys should do the trick: 20 Inch 20" Stroke Linear Actuator 12 Volt 12V 225 Pounds lbs Maximum Lift https://www.amazon.com/dp/B00OGQW3KO..._xUd7CbWZZ8EF1

https://uploads.tapatalk-cdn.com/201...ab335d509b.jpg

I will likely order one to screw around first before going the hole hog.

Edit: Open to mood lighting and music suggestions. Disco ball optional.

BIGmouthinDC 05-27-2019 01:32 PM

how deep is this riser? not sure you can fit three 20 inch actuators sequentially mounted.

impreza276 05-27-2019 01:59 PM

Garage door opener?

BIGmouthinDC 05-27-2019 02:05 PM

cable, pulley and motorized spool?

MinHeadroom 05-27-2019 02:05 PM

Quote:

Originally Posted by BIGmouthinDC (Post 58105132)
how deep is this riser? not sure you can fit three 20 inch actuators sequentially mounted.



Nor I- The riser can be 6-7’ deep if I recall correctly (I’m on a family TRIP (not a vacation by any means)), so I can’t get more exact.

I need to sketch up a mechanism to get a better sense.

MinHeadroom 05-27-2019 02:09 PM

Quote:

Originally Posted by impreza276 (Post 58105260)
Garage door opener?



I did a quick look into this, and it seems likely to work, albeit not cheap to test the concept. Heck, the concept IS the purchase. But I’ve looked into it. I should probably look into it more.

BIGmouthinDC 05-27-2019 02:09 PM

A motorized curtain track on both ends?

MinHeadroom 05-27-2019 02:12 PM

Quote:

Originally Posted by BIGmouthinDC (Post 58105286)
cable, pulley and motorized spool?



Hmmmm. This approach would at a minimum familiarize me with a motorized masking system I am contemplating. The “challenge” is ensuring the motorized spool can both push and pull. On that note, I need to read about pulling (as opposed to pushing) strength of linear actuators. The mechanism suggests to me they push and pull with the same force.

MinHeadroom 05-27-2019 02:13 PM

Quote:

Originally Posted by BIGmouthinDC (Post 58105292)
A motorized curtain track on both ends?



Hey Big- how much force are these guys rated for? I’ve never used one.

BIGmouthinDC 05-27-2019 02:24 PM

how much force do you need to move a bed on casters?

MinHeadroom 05-27-2019 05:06 PM

Quote:

Originally Posted by BIGmouthinDC (Post 58105344)
how much force do you need to move a bed on casters?



Doh! Riddles for answers! ;)

Thinking aloud...
I can put the bed on rollers of variable radius/ bearing mechanisms (need to read on this). The rollers will contact concrete under the riser, and thin’ish carpet outside the riser. The first row (HTMarket Southampton, row of 3, loveseat right) can be on sliders or fitted with wheels.

Weight of bed assembly = ~200lbs
Weight of front row = ~400

Coefficient for static friction of 600lbs on wheels, some of the weight on concrete, some of the weight on carpet = god only knows!

BIGmouthinDC 05-27-2019 05:12 PM

you should carpet the area under the riser so there is no lip to overcome.

MinHeadroom 05-27-2019 05:27 PM

Quote:

Originally Posted by BIGmouthinDC (Post 58105986)
you should carpet the area under the riser so there is no lip to overcome.


No joke i was weighing out the force of making the wheels go over the lip vs the force saved by having wheels on concrete!

You go all-carpet? Maybe I should go sliders over wheels all-around?

BIGmouthinDC 05-27-2019 05:36 PM

It just dawned on me that your are talking about moving an assembly of both the chairs and the bed, I had a two step approach in mind, move the chairs then pull out the bed. I'm still in favor of focusing your energy and finances on the theaters video and audio performance.

MinHeadroom 05-27-2019 06:01 PM

Quote:

Originally Posted by BIGmouthinDC (Post 58106064)
It just dawned on me that your are talking about moving an assembly of both the chairs and the bed, I had a two step approach in mind, move the chairs then pull out the bed. I'm still in favor of focusing your energy and finances on the theaters video and audio performance.


In my flirting with motorizing the trundle bed under the riser, at that point it wasn’t a big step to motorize moving both, provided there was not a significant cost jump. Those linear actuators are rated at a lot of force. I may crush a few beer cans with one before committing, though I’m trying not to overcommit to one mechanism if there are better alternatives.

End of the day- 50% i manually slide everything. But i have to entertain an awesome alternative, if reasonable, in light of the cost of this entire project.

Bigus 05-27-2019 09:58 PM

Front row should be on a very short riser just enough to connect to the bed frame assembly. This could be as little as a doubled layer of staggered plywood. Wheel/caster assemblies can probably be fitted in the spaces under the front seating so that they stick through and above that slim-riser, not just beneath.

Wheel assemblies under the bed frame as well to support it's weight.

But if you're going to want this think to keep aligned well so it doesn't wander here and there a bit while sliding in and out, whether manually or activitated, you may need a guide system a little more accurate than "wheels on the floor".

Thomson bearings aren't that expensive. Thomson rods are though. They can be used however with cheaper steel tubing... Chrome moly wears pretty good in that role.

Perhaps there is a cheaper way to accomplish that though? Perhaps some guides along each side of the wheels creating a rigid track on the floor?

Tedd 05-28-2019 04:07 AM

I actually suggested something very similar at my daughter's home. Small backsplit, with a storage area that was about 3' tall. She wanted some guest space and could
have had a roll out bed hosted there, with minimal work.

I wouldn't automate anything. Go low tech. Just some locking wheels, with a low platform. Simply pick up and move the front row seating, and roll out the trundle bed.

These suggestions don't make a lot of sense to those with homes with large square footage, but they often can really up a small home's game.

MinHeadroom 05-28-2019 03:10 PM

Thanks Tedd and Bigus- I’ll leep everybody posted.

Tedd- you’re right about small homes. For a while, between wives, I did the extreme living of a 500 sqr foot studio in Manhattan, and i learned to make good use of space.

My ~2500 sqr foot house feels gigantic by comparison.

Tedd 05-28-2019 04:07 PM

What format of screen are you masking?


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