A a water mattress , a water mattress , or a flotation mattress is a water-filled bed or mattress. Waterbeds devoted to medical therapy appeared in various reports until the 19th century. The modern version, found in San Francisco, California and patented in 1971, became a popular consumer item in the United States until the 1980s to 20% of the market in 1986. Currently they account for less than 5% of bed sales new..
Video Waterbed
Construction
Waterbeds mainly consist of two types, hard beds and soft sided beds.
A hard water mattress consists of a water-filled mattress inside a wooden rectangular frame resting on a plywood deck that sits on a platform.
A soft-side water mattress consists of a water-filled mattress inside a sturdy rectangular foam frame, a zipper inside the cloth casing, which sits on top of the platform. It looks like a conventional bed and is designed to fit the existing bedroom furniture. The platform usually looks like a conventional foundation or box spring, and sits on a reinforced metal frame.
Early mattress mattresses, and many cheap modern mattresses, have one water chamber. When the water masses in these "free flow" mattresses are disrupted, significant wave action can be felt, and they take time to stabilize after interruption. Then the type used wave reduction methods, including batting fiber and interconnected water chamber. The more expensive modern umbrella "without water" has a mixture of air and water chambers, usually interconnected.
Water beds are usually heated. Temperatures are controlled via a thermostat and set to personal preference, but most often the average skin temperature is 30 ° C or about 86 ° F. A typical heating pad consumes 150 to 400 watts of power. Depending on the insulation, bedding, temperature, usage, and other factors, the use of electricity may vary, significantly.
Waterbeds are usually built from soft polyvinyl chloride (PVC) or similar materials. They can be fixed with almost all vinyl repair kits.
Maps Waterbed
Mattress type mattress
Source:
- Free Flow Mattress: Free flow mattress or full-wave mattress is a mattress that contains only water but no baffles or inserts.
- Semi-No-Sleeved Mattress : Semi-waveless mattress is a kind of mattress that contains some fiber inserts and/or baffles to control water movement and increase support.
- Waveless Mattress : Uncovered mattress is a type of mattress that contains many layers of fiber inserts and/or baffles to control water movement and increase support. Often better mattresses contain an additional layer in the middle of three mattresses called special lumbar support.
History in the 1800s
A waterbed was created in 1833 by Scottish physician Neil Arnott. Dr. Arnott's Hydrostatic Bed is designed to prevent bedsores in disabled people, and consists of a water bath with rubber-impregnated canvas cover, where a lighter bed is placed. Arnott did not patent it, allowing anyone to build a bed for this design.
The use of a water mattress (for sick Hale pain) was mentioned in the Elizabeth Gaskell novel in 1855 North and South .
The Graham protagonist was placed in a water mattress in a glass case during a 103-year-old coma in 1898 H. G. Wells's novel "The Sleeper Awakes"
In 1871, a water bed was used in Elmira, New York, for "handicapped". It was briefly mentioned by Mark Twain in his article "A New Beecher Church", published in The New York Times on July 23, 1871. Twain wrote: "At the hospital there will be one or two water-places sleeping (for sick people who are ill will not let them be in less-productive substances) and half a dozen lying illegally-chairs on wheels.Interested bunk beds and chairs today belong to the church are always in demand, and never come out of service ".
Description of Heinlein
The science-fiction writer Robert A. Heinlein describes the therapeutic waterbeds in his novels Beyond This Horizon (1942), Double Star (1956), and Foreign in the Strange Land (1961). In 1980 Heinlein recalled in the Expanded Universe:
I designed water mattress for many years as a bed patient in my mid-thirties; pump to control the height of the water, supporting the side to allow one to float rather than just lying on a mattress filled with water that is not too soft. Thermostatic temperature control, safety interface to avoid all possible electric shock, waterproof box to make leakage is not more important than hot water bottles leak than domestic disaster, calculation of floor loads (important!), Internal rubber mattress and lighting, reading, and eating arrangements - attempt to design a perfect hospital bed by people who spend too much time in hospital beds.
Heinlein made no attempt to build his discovery.
The Hall waterbed
The modern water bed was invented by Charles Prior Hall in 1968, when he became a design student at San Francisco State University in California. Hall originally wanted to make an innovative chair. His first prototype was a vinyl bag with 300 pounds (136 kg) of cornstarch, Finally, he no longer worked on a chair, and decided to perfect the bed.
Hall was granted a patent on his mattress, (# 3,585,356) originally called "liquid support for the human body." The patent was trial in 1991 at Intex v. Hall/wbx . The patent was enforced in court and Hall received a $ 4.8 million verdict for the offense. In 1971, he founded Innerspace Environments, a manufacturing and sales company that became a leading retailer in water areas in the United States, with 30 stores owned and operated. Hall/wbx Receive additional royalties from the license. Several lawsuits were later dismissed for locking.
Sales peaked in 1987 in 22% of the domestic mattress industry. Although the mattress was initially advertised for offering "undisturbed sleep," Hall acknowledged that "[the customer] bought it for his sensual or sexual parts" and that sexual association advertising was very effective in the 1970s and early 1980s. Henry Petroski of Duke University said of the water mattress: "Not only is it a cool new gadget, but it comes at a time when culture embraces something different, especially products that embody sexual liberation."
Advantages and disadvantages
Regarding the use of
The water bed can be useful and comfortable for some people and harmful to others. The main feature of a water mattress that is found attractive is its fitting nature and minimizes pressure. Not only is this a boon for those seeking solace, but the removal of pressure from the spine can provide relief to those suffering from back pain. In addition, weight distribution can prevent bedsores between paralytic and coma. However, the National Institute of Child Health and Human Development warns that the fitting nature of a water bed poses a danger to the baby, providing the possibility of asphyxia.
Another advantage of a water mattress is its easy cleaning. It is impossible for dirt particles and dead skin to penetrate the water mattress, which can then be cleaned periodically with cloth and vinyl cleaners. The mattress cover can be washed regularly - so it almost removes house dust mites on the bed. Dust mites can trigger asthma, eczema, and allergies in people who are sensitive to it.
Regarding unused
Firstly, since some hard water beds have different sizes than other mattresses, sheets are harder to find and less. Conventional soft-sided mattress to avoid this problem. Second, moving a water bed is a more difficult process than moving a normal bed; the water should be drained and the frame unloaded, then the framework should be rearranged, the mattress recharged with water, and water heated for a potentially long period to get new water to the correct temperature. And heating the bed can be expensive: water that spends between 300 and 1500 kWÃ, Â · h/year (36-180 USD at 12c/kWÃ, Â · h, US national average for residential energy), depending on climate, size beds, and other factors. The use of energy can be reduced by about 60% by using a soft-sided water mattress. Water itself can pose a challenge: sometimes, a water mat can leak. The plastic coating will reduce the damage, but emptying, patching, refilling, and reheating (and sleeping elsewhere until all this is done) is an inconvenience.
Contract inconvenience
There can be contract discomfort; many rental apartments and home insurance policies limit the use of "water-filled furniture" because of concerns about water damage to the residence due to accidental leaks as well as pressure on the floor.
See also
- List of inflatable manufacturing goods
References
External links
- AS. Patent 3,585,356 - "Support fluids for the human body"
- "Make your bed and float on it: $ 100 water mattress you make from kit", Popular Science , July 1971, page 75, 116
- "The Resurrection and the Fall from (Sexy, Cunning, Practical) Waterbed", Atlantic
- "Somebody Lying In The Bedroom Water: Discovery", Los Angeles Times
- "Make Waves", SF State Magazine , Autumn/Winter 2013
- "VERB WORD VOICE WATER VIP", The Washington Post
Source of the article : Wikipedia
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