Types of sofas and mechanisms for their transformation. Sofa layout mechanisms Different modifications of sidewalls for sofas

Choosing among the many types of transformation of sofas, you need to consider whether you will lay out a bed every day, or only occasionally, when guests rush into the house.

Book ("click-clack")

Mechanism: to expand the sofa, lift the seat and pull it towards you. It is reliable, time-tested.

• Three positions of the backrest: sitting, lying, "relax" (intermediate position with a half-reclined back).
• Compactness. Doesn't take a lot of space to spread out.
• As a rule, it is possible to provide a linen box.
• The sleeping place is flat, without "kinks".

Eurobook

Mechanism: The seat is pushed forward, after which the back of the sofa is lowered. In fact, it is difficult to call similar mechanisms: the seat leaves by sliding along the guides, the backrest is lowered in manual mode.

• Durability: Simplicity sofa folding mechanism eliminates breakage.
• Large selection of sizes.
• Large linen box due to the lack of internal parts of the mechanism.
• Flat sleeping surface.

Eurobook "Tick-Tock"

Mechanism: among others types of transformation of sofas this one is especially respectful of the flooring: the wheels do not move on the floor, the seat moves along a trajectory resembling a semicircle.

• Scratches on parquet, linoleum and other floor coverings are excluded.
• Doesn't require a lot of layout space.

Accordion

Mechanism: this “musical” name was given for its similarity with the principle of stretching the bellows of this musical instrument. The seat raises until it clicks, and then extends to the stop.

• Minimum assembled size.
• Large bed size.
• mechanism reliability.

Withdrawable

Mechanism: The seat pulls all other parts along with it. To unfold the sofa, you need to pull the seat strap hidden at the bottom.

• Of all sofa folding mechanisms this one is the most reliable.
• Takes up little space when folded
• Large size bed with a small size of the folded structure.

Cot

Includes the following types of sofa transformation: American and French. They have some differences, but are similar in that the assembled bed is under the seat.

french look

Mechanism: the seat must be pulled out towards you and then up, after that the folded sofa should be “unfolded”. Before that, you need to remove the pillows.

• When folded, it takes up little space.
• When unfolded, it has a fairly large bed.

American view ("sedaflex")

Mechanism: unfolds similarly to the French mechanism, while the headrest does not need to be removed, it will automatically move to the desired position.

• More durable mechanism than the French counterpart.
• There is no need to dismantle structural elements.

Dolphin

Mechanism: the movement of the sleeper at a given sofa folding mechanism reminiscent of a dolphin dive. It is necessary to pull the strap attached to the seat and pull it out completely.

• The most durable of all types of transformation of sofas. Suitable for daily unfolding.
• The sleeping place is large, flat.
• Easy to unfold and fold.

Conrad

Of all types of transformation of sofas this option is the most convenient for sleeping, as it allows the use of spring blocks in the design, which is most beneficial for health and creates comfortable conditions for sleeping.

Mechanism: the part located under the seat extends and stretches further, dragging the seat with it, and then part of the back, after which the first part rises up, on the same level with the seat, and the part of the back falls to the same level.

• A sleeping place close in quality to an orthopedic mattress.
• Significant space saving when folded with a relatively large bed.

Purchasing a new sofa is a major purchase that raises many questions and doubts. As with the choice of most pieces of furniture, the buyer wants to find a model that is equally comfortable, practical and stylish in appearance. The best way to choose the most comfortable sofa is to visit a furniture showroom and feel like the owner of a particular model.

• Some models of sofas are designed to perform only one function - they serve as a place to relax in a sitting position. These are the so-called guest sofas.
• Another variety are models that transform into a bed. When buying such a model, be sure to familiarize yourself with the mechanism of its operation to make sure that it is suitable for the conditions in which it will be operated.

Varieties

The folding mechanism of the sofa makes it easy and simple to turn it into a bed. Currently, there are many such options. However, before buying a sofa with any of the transformation mechanisms, you need to carefully study their properties, as well as find out what material they are made of. These characteristics will allow you to judge how long-term and comfortable the operation of the sofa will be. In the case of complex mechanical devices, the choice of transformation mechanisms made of reliable steel grades will be the most preferable option.

According to the type of layout, the sofa can be:

1. Turning, which is also called a transforming sofa or modular;
2. Folding, this category includes both folding sofas (French or American) and “Eurobook” sofas;
3. Withdrawable, which can be straight or angular;
4. with lifting mechanism, which happens on hinges, springs or can be carried out using a gas shock absorber system;
5. With walking mechanism, which is also called stepping; such designs include tick-tock, tango, and pantograph sofas, which are variants of the improved Eurobook model;
6. "Scissors"- most often these are corner structures;
7. "Butterfly", which is also called the "versailles" mechanism.

photos

"Dolphin"

One of the most convenient and frequently purchased sofa layout mechanisms. The base of this sofa is on a retractable platform. While the design is in the form of a sofa, the platform is invisible, because it is hidden under its seat. In order to unfold the sofa, you need to roll out this platform and lift its edge a little up by pulling on the special loops. This will ensure that the surface of the platform is leveled at the same height as the seat. The resulting bed has an elastic base and a comfortable height.

Folding such a model is very simple: you need to pull up, holding the belt of the retractable base, it will rise and the mechanism will take it inside the roll-out platform. The platform itself then slides down under the seat. Such a mechanism is very reliable, allows you to get a comfortable resting place for two people, suitable for use every day.

Sliding sofas "dolphin" can be either straight or corner. In the latter case, they are supplied with a box for things located under the ottoman.

"Eurobook"

This layout is also known as "alternative". This folding model, in fact, does not have any mechanism that ensures its transformation, being an example of simplicity and reliability. The movement of parts of the structure occurs due to the rollers that move in the grooves of the base. This option is simple and suitable for long-term use.

To turn the eurobook into a bed, you need to remove the pillows and push the seat forward. Then it remains to lower the section, which was the back of the sofa, and you get a classic bed. To return the sofa to its original position, you need to do the same operations in reverse order: first, the backrest rises to its original position, and then the roll-out base moves towards it.

Under the seat there is always a compartment for storing bed linen, which is very convenient for the owners. Such models can be angular or straight type.

"Pantograph"

The mechanism called "pantograph" (also known as "Tick-tock" or "Tango") is an updated and improved version of the well-known "Eurobook". To turn this model into a bed, as in the case of the Eurobook mechanism, you need to push the seat forward. However, to do this, the seat must first be lifted up slightly by pulling on the hinges. Thanks to the folding mechanism, it will automatically take the desired position. The extended seat is placed on the floor and then the back of the sofa is lowered.

It turns out a wide and elastic bed on a spring block. The reverse transformation can be done by putting the backrest in the normal position, and then lifting the seat and moving it close to the backrest. The mechanism is designed for daily use. Sofas of this type are suitable for those who have high pile carpets at home, because the transformation takes place without moving the furniture directly on the floor.

In the case when the model with the pantograph mechanism is angular, it has a box for storing bedding.

"Puma"

A very simple and softly working spring mechanism of sofa expansion, which in terms of smoothness of movement really resembles the steps of a wild cat, after which it is named. During the transformation, the seat of such a model rises and, as it were, takes a step forward. In order to do this, just pull on the loop mounted at the bottom of the seat. At the same time, an additional platform hidden there will move out of the depth of the sofa, which, having taken the vacant seat, will transform the sofa into a full-fledged bed. This transformation occurs through a single movement gently and smoothly, which is facilitated by properly selected springs, equipped with a synchronizer.

Folding this model is also very simple. The folding process is carried out in one movement, for this the same sewn-in loop is used. Raising the front of the bed with it, you need to make a slight push back to the back of the sofa, and the built-in mechanism will lower both platforms into place. This mechanism is ideal for everyday use.

A straight sofa-"puma" does not allow to have a place for storing linen in the design, however, in the corner modifications, equipped with an ottoman, such a compartment is present.

"Conrad"

This type of transformation is also called high-rise roll-out.

The mechanism consists of three fragments, folded compactly packed in the back of the sofa. The outermost part of the bed is a frame structure, the middle part is a platform, completely standing on the floor and serving as an assembled seat, the head part is in the back.

When laying out such a sofa, you do not need to remove soft pillows, they will not interfere with pushing out of the depths of the structure and installing three retractable parts. The frame part is pulled out to the level of the legs first, it pulls the seat behind it, which, moving, gives impetus to the extension of the head of the bed. Special rollers with brackets moving along hardwood guides and a well-oiled mechanism allow such a transformation to be carried out without much effort. In order to fold the “konrad”, you need to lift the frame part by the built-in loop and push it towards the back.

However, with everyday use, such a model may not seem very convenient in the layout. This will be especially problematic for a woman or a child, since the retractable parts are of considerable weight.

The advantage of this model is its compact and elegant appearance, the creation of a comfortable and reliable bed without kinks and the presence of a box for storing linen built into the back.

Since the Konrad mechanisms are not produced in the Russian Federation, this affects their cost: sofas with similar components have a fairly high price tag.

Transformer

This is a sofa with a swivel transformation mechanism, which is also called "scissors". Usually these are large corner sofas with an ottoman. Outwardly, they are not too distinguishable from corner sofas of other designs, but if you look closely, it becomes clear that the ottoman of such a model has a slightly longer length than usual. With the pillows removed, its length will be about 190 cm, thus this part of the structure can simultaneously serve as a sleeping place without any additional transformations.

If you move the main part of the seat at an angle of 90 degrees and move it close to the ottoman, you can get a full-fledged sleeping place, already designed for two people. For ease of movement on the floor, the sofa-transformer is equipped with rubberized wheels. For reliable fixation, the wheels are equipped with brakes, which are installed as needed.

You can move the seat not only close to the ottoman, but also in the opposite direction, getting a U-shaped design. For some models of transformers, the back is additionally lowered, so the buyer can choose exactly the option that seems optimal to him. Each of these models has two spacious storage drawers and is an alternative to the usual roll-out sofas.

"Accordion"

The accordion folding mechanism is strong and durable, when unfolded, it turns the sofa into a full-fledged bed. It works on the principle of an accordion, for which it received its name.

When assembled, it has a double-fold back, which, when unfolded, straightens and creates the basis of a bed. In order to unfold the "accordion", the seat is lifted slightly up (until it clicks), then the mechanism begins to move forward, stretching the back folded in half. For stability and reliability, such models are usually equipped with armrests.

Assembling the "accordion" takes place without much effort, but requires some skills. In order to start the assembly mechanism, you need to lift up the extreme part of the structure and push it towards the back: the "accordion" will curl up.

This model is usually straight, has a box for storing linen, when folded it is very compact and takes up a minimum of space. Such models are designed for daily layouts.

"French" folding bed

The transformation mechanism called the "French" clamshell has a second name: such designs are called "mixotual". This is the so-called metal frame mechanism. It consists of steel tubes of various thicknesses (in domestic designs it is 1.5 mm, in imported ones - 0.8 mm), an awning made of durable fabric (most often it is polypropylene) and equipped with transverse support strips - "armor" (made bent plywood) and equipped with a polyurethane foam mattress, which is in a fabric cover.

When laying out and folding, the mattress remains inside the structure, since it does not have its own frame. To open the "mixotual" almost no physical effort is required, for a start it is enough to pull up and forward the very frame of the mechanism, which is also the edge of the seat of the sofa. Then the whole mechanism must be lifted up and “rolled out” forward, like a regular clamshell. At the same time, sections folded into each other will straighten out, each of which is equipped with folding legs-supports made of metal semicircular tubes. Thus, a sleeping place is laid out, designed for a weight of about two hundred kilograms and dimensions of 185 * 145 cm. Sofa cushions are removed before transformation.

When assembling, the outermost segment of the structure first rises, which is “wrapped” onto the middle one, and then both of them are placed on the base of the sofa. The mattress is not removed, but bed linen, pillows and blankets must be removed to avoid damage to the mechanism.

"French folding bed" is a convenient and easy-to-transform mechanism, designed for use from time to time, the so-called guest version of the bed. In many respects, the duration of the service life of this model depends on the quality of the steel fittings located at its base, the reliability of the slats and the density of the awning.

"Sedaflex"

This mechanism has another name - it is often called the "American" clamshell.

This design is copyrighted by Sedac, hence the name "sedaflex". It is an improved version of the “mixotual”, while the mechanism is not divided into three, but only into two parts. Another innovation is the filling of the mattress with a spring block, which increases the comfort and stability of the bed. Thicker tube-legs, which have a thickness of 3 mm, also contribute to reliability.

Another advantage of the "American" is the fact that sofa cushions do not need to be removed before transformation. The design is designed in such a way that when laying out the sofa, the pillows turn over, ending up on the floor, and thereby increase stability and save time and space for the owners. Also, as an advantage of the "sedaflex", we can mention the fact that it was decided to replace the reiki-lats in it with elastic belts.

The transformation of the "American clamshell" is similar to the transformation of the "mixotual", both models are laid out forward with the help of physical effort. By pulling the edge of the seat of the folded sofa, it is lifted up a little and the entire structure is laid out with a fixed mattress.

The dimensions of the Sedaflex are somewhat larger than those of its French counterpart, which contributes to the greater popularity of this particular model.

A box for storing linen is not provided in any of them, since the entire internal space in the sofa is occupied by the mechanism itself. However, if the clamshell models come with an attached section, which can be located on either side, then in this section it is possible to place linen for storage.

"Telescope"

This mechanism got its name due to the resemblance to the unfolding of a telescope. When it is implemented, the transformation occurs as follows: first, pulling on the mounted hinges, the lower tier of the structure, previously hidden under the seat, is rolled out. This will be the basis for the bed, or rather, the part where the legs of the sleeper will be located. When extended, it will pull the platform behind it, which will become the middle part of the base of the bed.

To assemble the structure, the spring block is first returned to its original place, then the lower part of the sofa is pushed in. It is worth noting that in the first pull-out section there is a place for bed linen or clothes.

One of the disadvantages of the telescopic design is the fact that it is not suitable for a large sofa. First of all, these are two- or three-seat sofas that are good for a nursery.

How to choose?

Any sofa, even folding, even non-folding, has similar design features that must be considered when choosing:

1. There are no standard sizes for them. The height, width and depth of such upholstered furniture vary depending on the type of sofa layout and whether it is angular, straight or modular.
2. When purchasing such furniture, you need to take into account the size of the room: the model for daily sleep should fit freely in the room in the unfolded state.
3. Types of such sofas are divided into straight and angular. The latter can have different angles: left, right or the so-called universal angle.
4. You can choose either a model for every day, or a guest option, for this you need to decide how often you need to transform the sofa into a bed.

Immediately before buying, it is advisable to visit furniture stores in order to “live” inspect various models and personally check how convenient and easy the transformation mechanisms work. At the same time, you should not stand and observe the process of unfolding the sofa by a consultant, it is better to ask the seller to show the layout principle and then do this procedure with your own hands. Only in this case, you can understand whether it will be convenient to perform such actions daily.

For every day, it is better to choose the most easy-to-transform mechanisms, such as, for example, “Eurobook”, “telescope”, “pantograph”.

The service life that a sofa will withstand without repair depends entirely on the quality of the materials from which its base, body and folding mechanism are made.

Be sure to make sure that the interior of the sofa is made of solid wood, and not chipboard or plastic, because in this case they can deform and crack. The quality and type of wood is also very important. Softwoods such as pine are cheap and are used in inexpensive sofas, but they can warp or dry out after a while, usually after five years. More expensive woods, such as kiln-dried oak, ash or beech, will make the sofa durable and keep it beautiful.

Therefore, be sure to carefully ask the consultant and carefully examine the inside of the sofa. In this case, it is worth paying attention to how the joints and joints are attached. It is important to remember that the design, in which the constituent parts will be held with screws, dowels or on special furniture pegs, will last much longer than the one whose parts are fixed to each other only with glue or fixed on simple self-tapping screws.

An important factor when buying a folding sofa, of course, is the availability of space in the apartment for its transformation. If you have limited space, but need extra beds, then instead of one huge sofa, it would be preferable to purchase two small folding sofas.

In addition, the firmness of the sofa mattress is another important factor to be taken into account when choosing a model. This largely depends on personal preference. But, as a rule, a firmer mattress will be healthier, and when using this sofa as a bed, it will make it possible to get a good night's sleep.

The next important factor is the elasticity of the sofa. It also has to do with personal preference and choice. Some people don't like bouncy sofas, and some don't. In order to evaluate the future acquisition from these positions, it is worth sitting on it even before the purchase, and it is even better to lie down.

If there are animals in the house, which, of course, will certainly be happy to lie on a brand new sofa, it is worth choose your upholstery carefully. Contaminants such as pet hair and fluff are well removed from flock and leather, but get stuck in the tapestry; on such a coating as a shinil, there are puffs left from their claws.

And finally, the weight of the sofa is another important aspect that the buyer should consider.

The variety of sofas in furniture stores amazes consumers with its wide range. Here you can choose products of various shapes, dimensions, types of transformation, designs, materials of manufacture. Each model has its own advantages and is suitable for a certain interior of the room. Consider the main types of sofa transformation mechanisms (photos with names are attached) and their folding options, as well as the pros and cons of each of the methods.

What are the mechanisms for folding sofas, types

When choosing a sofa, attention is drawn to the durability, practicality, ease of use of the model, and the size of the bed. According to the type of transformation mechanism, they are divided into the following types:

• folding;
• withdrawable;
• rotary;
• without folding mechanism.

Video: Mechanisms for transforming sofas and how to lay them out

folding

Folding models are quite convenient to use. To make a spacious bed out of a compact sofa, you will need to spend a few seconds of free time.

Folding sofas include:

Accordion

When folded, it occupies a minimum of free space, when unfolded, it provides a spacious sleeping place. As a rule, the bedding storage compartment is located in a niche under the sofa. Its advantages include: the durability of the folding mechanism, stability and reliability, ease of transformation. Cons: since with this method the sofa unfolds forward, then there should be enough space in front for its transformation.

Dolphin

The most popular corner sofa that unfolds by pulling the loop under the seat towards you. When unfolded, it pleases consumers with a spacious bed and an additional drawer for linen. Its advantages include: the presence of a comfortable and spacious bed, ease of unfolding, aesthetic appearance.

The Dolphin mechanism exerts a heavy load on the body of the product. Therefore, it is necessary to choose products from high-quality and durable materials.

Book

When unfolding a piece of furniture, its back leans back. To do this, you do not need to move the product away from the wall, as it is immediately installed with a small margin. Book models consist of a metal or wooden frame, spring blocks or any other filler. At the bottom, they are often equipped with linen drawers. Its advantages include: strength and reliability, wear resistance ease of use.

Eurobook

It belongs to the classic models, in which, when unfolding, the seat is pushed forward, and the back is lowered in its place. Its positive qualities include: ease of unfolding and folding, reliability of the mechanism, a large bed, the presence of a niche for storing things.

Click Clack (Tango)

Refers to an improved model of a sofa-book. The product got its name because of the sounds that are made when the mechanism is unfolded.

The model has three positions: lying, sitting and reclining (relaxation).

Some products are additionally equipped with side parts that transform into armrests and headrests. Even when unfolded, upholstered furniture occupies a minimum of free space and is perfectly placed in small apartments.

Tick-tock (pantograph)

Its transformation system resembles a eurobook, only there are no roll-out rollers. Inside there is a spacious box for bedding. To unfold the Pantograph, it is necessary to pull the seat up, grabbing it by the edge in the middle. The advantages include: ease of use, the presence of a spacious bed, the absence of rollers that spoil the floor covering.

French cot (aka Spartacus)

It consists of three sections, which are laid out by pulling the product over the edge of the seat. The French folding bed model is not intended for regular unfolding, as its mechanism wears out quickly. When assembled, the sofa takes up little space.

Sedaflex (American folding bed)

It unfolds like a French folding bed, but differs not in three, but only in two sections and a thicker mattress. Among the advantages it is worth noting: the strength of the transformation mechanism, compactness, the presence of a comfortable and high-quality mattress.

Italian cot

The advantages of the model include the fact that for its unfolding there is no need to first remove the pillows. This option is one of the most reliable and easy to use.

puma

The design of the piece of furniture is original, simple and easy to use. When unfolding, the front part rises, is carried forward and mounted on supports. The rest of the product fits into the vacated space. The special synchronization of the system and the high reliability of the transformation mechanism make it possible to use the piece of furniture on a daily basis. It is worth adding to the advantages: compactness, ergonomics and original design.

Saber

Quite an easy-to-use type of construction that can be fully or partially unfolded. Features include the presence of a linen box and a high place to sleep. Depending on the chosen modification, the bed consists of two or three sections. To unfold the product, you need to roll out the seat, fold the backrest forward and lower the additional shelf.

Butterfly

Video: Sofa with Butterfly transformation mechanism (Butterfly)

With withdrawable mechanism

In roll-out models, one or two sections of the sofa are hidden in its body. To unfold the product, you need to pull the bottom part towards you.

Common models include:

• Venice. The principle of operation of this withdrawable mechanism (see photo above) resembles the Dolphin model. To prepare a sleeping place, it is necessary to push the section, which is located under the seat of the sofa, all the way towards you. After that, the pillow that hides inside will lean back into the vacant niche. The piece of furniture is quite simple and easy to use. Manufacturers offer straight or angular models that do not take up much free space;
• Telescope. To unfold it, you need to pull its lower part towards you. In this case, the sections will roll out one after another and stand on their legs. The advantages include: a sleeping height that is comfortable for sleeping, the reliability of the mechanism, the possibility of regular use, compact volumes, the presence of a box for linen. But keep in mind, due to the unique unfolding system, the product is quite heavy in weight.

with swivel mechanism

A feature of models with swivel mechanisms can be called the ease of unfolding - folding. In them, the entire load goes to the frame, they do not need to lift the blocks and roll out the sections to the stop. Depending on the chosen model, both one part of the sofa and each individual block can turn when unfolding.
A popular model of a sofa with a swivel mechanism is:

• Scissors. Its transformation mechanism is to rotate one section to another. At the same time, the blocks are securely fixed to each other with a metal fastener from below. When transforming sections, a bed with bedside tables is obtained.

Without folding mechanism

These pieces of furniture do not contain any transformation mechanisms. That is, they do not fold out and are intended only to create comfortable seats. Such options are a practical decoration of the living room, where guests will comfortably accommodate. Also, non-folding sofas are found in the interiors of hallways, kitchens and dining rooms. Their benefits include:

• lack of a transformation mechanism (hence, nothing can break in them);
• long service life;
• stylish and aesthetic appearance.

Some people use sofas without transformation mechanisms for sleeping. It will comfortably accommodate one average person.

Mechanisms for transforming corner sofas

Corner sofa models are considered practical, functional and roomy. They are a real find for small apartments. Since they are distinguished by a large number of seats and a spacious sleeping bed. They are installed in the corner of the room (left or right) and occupy a minimum of free space.

Almost all transformation mechanisms are suitable for daily use of corner models. The Dolphin is considered an ideal option, as well as the Scissors model, which unfolds in several movements, and even a child can cope with this matter.

Which sofa mechanism is better

Since all sofa transformation mechanisms differ significantly from each other, the question arises before consumers: which sofa mechanism is better. Here it is worth starting not only from personal wishes and financial possibilities, but also from the purpose of the piece of furniture.

For daily use

For daily sleep, it is better to choose the following types of folding sofa mechanisms: accordion, eurobook, tick-tock, puma, dolphin. An excellent solution for every day would be a rotary or withdrawable mechanism.

If the product is bought for the purpose of regular operation, first of all, attention is paid to its design and the quality of the frame, which will be subjected to maximum load.

When choosing a sofa, it is important to consider the type of its filler. He can be:

• spring. In such a product, twisted springs are located inside in a vertical position. They, in turn, are divided into dependent and independent. The second option is more reliable, since such a filler does not bend, and during rest the spine is maintained in the correct position;
• springless. Differs in orthopedic effect, safety and convenience in use. Such products guarantee a sound and healthy sleep.

When choosing a sofa for daily use, you should pay attention not only to its folding mechanism and how it works, but also to the degree of mattress rigidity, upholstery quality, and the ability to change covers.

As a guest option

Compact models are used as guest sofas, which are laid out from case to case. Quite often, they are equipped with not very strong unfolding mechanisms (for example, a French folding bed), and it is not always comfortable to sleep on them. In these products, the main emphasis is on the spaciousness and convenience of seats, and the function of the bed in them is secondary.

Which sofa mechanism is the most reliable

Most people say that the most convenient and reliable transformation systems are: roll-out, as well as straight and angular models that use such a type of layout as an accordion or a telescope.

When choosing a transformation mechanism, several factors should be considered:

• how much space does upholstered furniture take when folded and unfolded;
• purpose of furniture (for daily sleep or as a guest option);
• intensive load mode;
• ease of operation;
• frame quality.

A good product will:

• have an impeccable movement of the mechanism without any jamming when folding and unfolding;
• differ in high-quality assembly;
• lined with wear-resistant upholstery;
• resistant to high mechanical loads;
• differ in a strong and reliable frame.

In conclusion, it is worth noting that the quality of the sofa transformation mechanism directly affects its durability, practicality and ease of use. It is better to give preference to proven and well-established manufacturers with an impeccable reputation. Then the newly acquired furniture will please you with high technical characteristics, aesthetics and functionality.