Dependent spring block, also known as Bonnell block
It was put into development in the 80s of the last century. The mechanism consists of rows of springs with four or five turns, connected by twisted wire or metal tape. The spirals themselves usually have an hourglass shape, that is, the diameter of the coil increases from the center to the edges. The rotations of the springs do not touch each other and do not produce creaking. The binding wire and outer metal frame prevent the springs from moving, thereby achieving strength and elasticity of the structure.
Dependent spring block
Types of mattresses with spring blocks
A spring block is the internal “filling” of a mattress, consisting of springs attached to the frame in various ways. It is he who is responsible for supporting the spine of a sleeping person.
All types of spring mattresses are divided into two main categories:
- with dependent spring block;
- with independent springs.
The first type of blocks was called Bonnell - this is a single structure where all the springs are interconnected. The weight of a person is borne by the entire set of springs, and not each individually.
The second category has its own subspecies. The key characteristic of such products is the autonomous (independent) movement of each individual spring under the weight of a person. Most often, the springs are located in separate fabric covers with holes.
Independent spring block
The system with dependent springs was invented later, but also quite a long time ago - in 1925. Its structure is as follows: each spring is placed in its own case, the cases are fastened together. If you press one or a series of springs, the adjacent ones will remain in the same position, because each one is “hardwired” into a personal shell. Thus, the manufacturer obtains greater rigidity, which guarantees the anatomical comfort of mattresses of a similar design.
There are many subspecies within the concept of “block with independent springs”:
- Traditional package, where 1 sq. m equipped with 300 springs.
- Multipack - up to 500 springs.
- Micro package - up to 1500 springs.
- Duet - for a husband and wife who have a big difference in weight.
- Hourglass - with special springs having coils of three types of stiffness.
Independent spring block
Let's look at the similarities and differences between the two types of blocks
What it is?
A soft sofa with an independent spring block is the optimal solution for sleeping and relaxing at home, in the country, or in the office. Its service life reaches 25 years, this design looks very presentable. Filling with independent springs differs from the traditional one in that inside the common case there are hundreds or thousands, depending on the size, of individual metal spirals. Each of them is placed in a textile case and is not connected to neighboring elements. The space between the springs is filled with elastic, eco-friendly material: foamed latex, coconut fiber, or a combination of them in different proportions.
A sofa block of this type is considered orthopedic and has a beneficial effect on the condition of the musculoskeletal system. With independent springs, the base used for sleeping always occupies an anatomically correct position. Both the joints and the spine are not negatively affected, the body is adjusted to proper rest.
Regardless of a person’s body weight, it is the sofa cushions and bases with an independent spring block that provide maximum comfort while sleeping.
In addition to classic solutions, today there are also improved ones . The spring block in them is formed from double elements, “a spring in a spring”, providing good support. Models with this base are suitable for people weighing more than 150 kg. Other types of fillers are simply not designed for such a load.
Benefit for health
A system with independent springs better solves the problem of proper distribution of a person’s weight, which guarantees sound sleep and morning vigor. A mattress with a dependent spring block adapts less well to the lines of the body, since the adjacent springs also fall under pressure. After a certain time, they stop returning to their previous position, as a result of which the mattress begins to press through. However, today's rigid fillers can practically neutralize this hammock effect attributed to Bonnell structures.
A GOOD SOLUTION FOR THE YOUNG GENERATION
Another case of buying dependent mattresses is organizing a sleeping place for a teenager, especially since there is a good way to make a good purchase without overpaying. If you choose dependent springs as the base of the mattress, and provide a layer of coconut coir in one of the upper layers, you can get a convenient and comfortable place for your child to sleep, while managing on a small budget.
A mattress with a dependent spring block and layers of coir in the outer layer. An inexpensive spring block takes on the main load; a thin layer of coconut coir provides the necessary rigidity. A small layer of polyurethane foam or latex on top of coir provides the necessary and sufficient comfort for a teenager
In this arrangement, dependent springs create the main support, and coir greatly increases the rigidity of the mattress, which is quite acceptable for a young body. The most important thing is that increasing the rigidity of the mattress largely eliminates the problem of the “hammock effect”, and the mattress turns out to be practical and inexpensive.
Price
With similar characteristics and identical quality of filling, a mattress with a Bonnell block will cost less than an independent spring block. The favorable combination of price and quality has ensured its fame and recognition throughout the world. Attempts to call it antediluvian or outdated are unfair: manufacturing factories are constantly improving production technology and materials.
The independent spring block system has a more complex structure, and hence a high cost, which also includes traditionally aggressive promotion methods. On the other hand, independent springs in the block give the mattress better orthopedic properties and, as a result, are more beneficial to health.
MiscellaneousComment
Advantages and disadvantages of the bonnel system
“Bonnel” or a block of dependent springs is used very often, as it has its advantages, including:
- affordable price of the product;
- light weight;
- moderate hardness;
- long service life.
But like any product, a mattress with a block of dependent springs has disadvantages:
- weak orthopedic effect;
- noise and creaking that appears under heavy, prolonged loads;
- The product must not be twisted.
When choosing a spring product, you need to take into account not only the economic benefits, but also focus on your personal feelings. Try lying on the chosen option, evaluate the comfort, listen to your body - and you yourself will understand which mattress is better.
Consider the weight, give preference to independent springs if the weight is more than 100 kg.
Also, remember that the more springs, the better the product will support your body. The same advice applies to the case when a sleeping place is purchased for spouses. After all, it happens that when one person changes his body position during sleep, all the springs of the Bonnell block begin to move, the second person wakes up, and so on several times a night. As a result, you get poor sleep, a spoiled mood in the morning, and a loss of energy in the afternoon.
The service life of dependent springs is lower compared to independent springs. However, high-quality models of Bonnell system mattresses, with high-quality latex filling and coconut coir, can last 10 years, which is also very good.
Good luck with your choice and sweet dreams!
Mattresses with blocks of independent springs
For the manufacture of springs, materials similar to those from which Bonnell blocks are made are used. However, the diameter of the springs is most often smaller - up to 2 cm, and the number of turns is much larger - up to 8.
On average per sq. meter of mattress has from 250 to 1200 independent springs. All springs in individual covers are interconnected, but it is the individual movement of each spring that allows such mattresses to have high anatomical properties.
More details about the independent spring block in mattresses https://matrasium.ru/matrasy/materialy/nezavisimyy-pruzhinnyy-blok/
Bonnell spring block - main characteristics
The Bonnell block is deservedly considered a classic in the mattress industry. It has been used for many decades. Despite its age, it is still popular. Primarily due to its affordable price.
Do not confuse the Bonnell spring block with ordinary spring mattresses. The latter very quickly become unusable and cause a lot of inconvenience to the owners of such products. Whereas in the manufacture of a spring block using Bonnell technology, such a development of events is excluded.
All components of the structure in the Bonnell block are firmly connected by the method of fastening bicone springs (with a variable coil radius). Each spring has a “waist” - it narrows towards the middle and widens towards the edges. It is this configuration that allows you to evenly accept the load from the human body, giving it the correct position.
The manufacturing material is high-quality steel, and a special frame or high-carbon steel wire with knots is used for connections. To prevent the springs from unwinding, their first and last turns are attached to the frame, and a securing “lock” is formed on the turns of the outer spirals.
The technology of weaving and connecting the springs is such that they do not touch each other, which means the springs will not rub or creak.
The density of springs in mattresses from different manufacturers may vary, but most often it ranges from 100 to 150 pieces per square meter. meter.
The video shows in detail what Bonnell springs and the design of the block as a whole look like:
You might be interested in reading about Tempur mattresses from the USA.
Which mattress is suitable for whom?
Springless mattress, bonnel, independent spring block, having studied their pros and cons, you can determine which mattress is best for whom:
- It is better not to skimp on children and, between the ages of one and 12 years, equip the baby’s sleeping place with a natural latex mattress. It will not create unnecessary swaying, will not spoil the developing posture with excessive rigidity, and will not provoke an allergic reaction. It is important to consult with a pediatric orthopedist before purchasing a mattress in order to properly distribute the load.
Natural latex mattress
- An adult who does not have health problems can choose a mattress to suit his taste, based only on his taste preferences and financial capabilities. If there is a history of cardiovascular pathologies, problems with the respiratory tract, spring structures should be excluded. A similar decision will be correct for body weights over 100 kg.
- Problems with the spine can make a coir mattress a contraindication. With such diseases, you cannot go shopping for a mattress without consulting a doctor; only a specialist can competently justify the need to purchase a spring block or a mattress without metal spirals in order to save the patient from muscle tension and new attacks.
- Discomfort from a hard springless mattress is also the basis for choosing a classic model. You should not choose a bonnel; it is better to pay attention to independent spring blocks. The more curls in its cells, the better.
- If you are on a limited budget, you should not try to buy a springless mattress. Made from artificial materials by questionable manufacturers, they can be toxic and cause allergic reactions and poisoning. In this case, a high-quality spring block will be better for your wallet and health.
Advice! Arrangement of a sleeping place is associated with significant expenses from the family budget. So that they are not in vain, before buying a mattress or sofa, you should not waste time consulting with an orthopedist. At the appointment, it is better to take extracts from the medical records of the family members for whom the future purchase is intended.
In matters of your own comfort, you should not chase fashion or advertising slogans. Each type of mattress has its own pros and cons, from which a specialist can create the optimal formula.
Mattresses with springs: types and characteristics
The spring mechanism in the pair under consideration can be called the older brother. Several generations of people slept on these, maintaining their posture and health. But not always. By the types of mattresses with springs, you can study the progress of this industry. When deciding how to choose a spring mattress, it is important to study the fundamental difference between the two types of structures with metal spirals.
Bonnell - dependent spring system
The age of this sleep invention has exceeded 120 years. Invented in the century before last, a single block of metal curls received the poetic name “Bonnel”. In the 21st century, its use is more of a tribute to vintage fashion. Large metal spirals connected to each other provide good shock absorption, but do not have an orthopedic effect. Under the weight of the human body, a soft, dependent mattress collapses completely, creating holes and craters, while a hard one keeps its shape until the last moment, preventing the muscles from relaxing even in sleep. Over time, the bonnel begins to creak, springs can come out of it and cause a lot of inconvenience. This mattress has the shortest period of comfortable use (about two years), but also the most affordable price.
Advice! Bonnell is considered an outdated model, and even its low cost is not a reason to save on your own health. With a small additional payment you can purchase a much more comfortable mattress.
Independent spring block
Before you understand the features of newer modifications of mattresses with springs, you need to decide: independent springs in a mattress - what they are and how it is possible to use them in a one-piece structure for sleeping. Everything is quite simple: each metal spiral is enclosed in an individual fabric cover with perforations and takes the load independently, without transferring it to its neighbors. This design has a number of advantages:
- better distributes body weight;
- provides back support;
- lasts longer;
- does not make creaking sounds.
A block of independent springs is extremely sensitive to momentary overloads, so immediately after purchase you need to have a conversation with your children that they cannot jump on such a mattress. Otherwise, it may fail ahead of time.
When faced with a choice between bonnel or independent springs and deciding which is better, it is wise to opt for an independent unit. A larger number of spirals with a larger number of curls and their autonomous operation will help you feel better after waking up.
Note! There is a third type of spring mechanisms - a snake. But it is used on furniture that is not intended for constant sleeping: sofas and armchairs.
