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A bed base, sometimes called a foundation, is the part of a bed that supports the mattress. The bed base can itself be held in place and framed by the bedstead ( bed frame ). In the United States, box-spring bed bases are very common (to the point where 'bed base' and 'box spring' may be used synonymously, and the term "platform bed" is used ...
Adjustable beds have been used in hospitals for a long time, [4] but have become more commonly used in homecare over the past three decades, as they have been found to provide relief from various conditions. They can help provide a more comfortable sleep for those recovering from surgery, aiding circulation, breathing and swelling.
A bed frame [1] or bedstead [2] is the part of a bed used to position the bed base, the flat part which in turn directly supports the mattress(es). The frame may also stop the mattress from sliding sideways, and it may include means of supporting a canopy above. There are several types of Bed Frames [3] found around the globe.
A box-spring (or divan in some countries) is a type of bed base typically consisting of a sturdy wooden frame covered in cloth and containing springs. Usually, the box-spring is placed on top of a wooden or metal bedframe that sits on the floor and acts as a brace, except in the UK where the divan is more often fitted with small casters.
The adjustable base pivot makes this a two degree-of-freedom five-bar linkage. It is common practice to design the linkage system so that the movement of all of the bodies are constrained to lie on parallel planes, to form what is known as a planar linkage.
Differences between fixed-rate vs. adjustable-rate mortgages. The biggest difference between a fixed-rate mortgage and an ARM is the variability of the interest rate. With a fixed-rate mortgage ...
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