Types of sofas. How to choose a sofa by type Sofa systems lifting mechanisms.

Modern technologies help to modernize furniture paraphernalia. Thanks to them, simple sofas turn into a full-fledged bed, which can accommodate from 4 to 8 people. In addition, high-quality filler makes it absolutely safe for human health.

To date, there are several types of sofa mechanisms. Each of them has characteristic differences. Here, both positive and negative sides of such a design are distinguished.

Thanks to them, the transformation allows you to save enough free space. In our material, you will learn which mechanism is better and what needs to be considered in the selection process.

Varieties of folding mechanisms

In specialized departments, a huge selection of folding mechanisms for sofas is presented. The most popular are:

• book;
• tango;
• euro book;
• pantograph;
• puma;
• elf;
• accordion;
• withdrawable;
• French foldout.

Book

Sofa book is considered a classic version of a furniture accessory. To transform it into a bed, just lower the backrest. In the process of unfolding, it resembles the construction of a book.

This mechanism has some advantages. These include:

• quality parts;
• durable construction;
• durability;
• spacious storage system.

The disadvantages of this building include:

• constant movement of the sofa for transformation;
• rapid deformation of the sleeping area. The filler begins to deteriorate over time at the fold;
• narrow bed. Only one person can fit here.

Tango

Sofa tango, is a modernized model of the "book". Modern designers have nicknamed this "click-clack" folding mechanism. His side and back parts are amenable to transformation. As a result of this, we get a full-fledged sleeping area where guests can accommodate.

The advantages of such a structure are:

• three positions of the backrest. Here you can adjust the angle of inclination, thereby selecting the desired position in the process of sitting.;
• This sofa mechanism is suitable for daily sleep. Durable fittings as part of the structure ensure the safe assembly of all parts during operation;
• a large box that acts as a storage area.

In addition to the advantages, there are some disadvantages:

• it is not possible to install the sofa close to the wall surface;
• requires effort to transform.

Eurobook

Sofa "euro book". It unfolds by rolling out the seat, which has an additional roller system. The back part is placed in the resulting plane.

Recently, this type of furniture paraphernalia has gained general popularity.

The positive qualities of this building include:

• comfortable bed;
• spacious bedding storage system;
• durable fittings as part of the mechanism.

The negative qualities of such a design include:

• deep seat. Without special extra pillows, it is impossible to relax here. The back is at a right angle;
• the constant movement of the front will cause scratches on the floor surface.

Pantograph

The pantograph bears some resemblance to the modern "euro book". Transformation is done in a similar way. There are structures that provide movement forward and upward.

The positive qualities of this model are:

• uniform seating area. In the process of unfolding, the joints are practically not felt;
• easy transformation;
• There is a place to store various small items.

In addition, experienced professionals identify the following disadvantages:

• uncomfortable seat. It also has a deep seat. The body is under constant tension. Additional pillows provide a comfortable existence;
• the complexity of the folding mechanism. As a result, its cost and maintenance increase.

puma

Sofa "Puma" is a simple and comfortable furniture accessory. It unfolds neatly with one touch. In order to turn it into a sleeping area, just pull the seat. It fits into the place of the formed void.

The tick-tock sofa mechanism has a similar design to the puma. It also easily transforms into a comfortable resting place with just two simple hand movements. This model is ideal for small living spaces.

It can be pushed tightly to the plane of the wall, thereby saving precious cm. As a rule, soft textured fabrics are chosen for such a sofa. They help to add a piece of comfort to the environment. The photo of the mechanisms of the sofas shows the components that are part of the folding structure.

Photo of sofa mechanisms

Let's open the secret: there are no "bad" and "good" transformation mechanisms, there is a wrong approach to choosing the right model. To understand what sofas are, to find "your" option will help a review with short illustrative videos.

When choosing the type of transformation, pay attention to how the sofa unfolds, lightness and speed, contact with the floor and the presence of a linen box. The purpose of the future sofa is also important - daily use or unfolding from time to time?

Book

A mechanism familiar to many since childhood. The transformation from sofa to bed is simple and intuitive. Time-tested folding sofas are equipped with a spacious linen compartment under the seat and have an attractive price due to the simplicity and unpretentiousness of the design.

How to decompose: the seat moves up until it clicks and then goes down. The back takes a horizontal position, forming a flat surface for sleeping and relaxing.

What is good: low price, quick unfolding method, capacious laundry box.

Things to remember: the distance from the back to the wall must be at least 10 cm, for unfolding it is necessary to make an effort.

Eurobook

Reliable and easy to use sofa transformation mechanism. Due to the absence of loops at the junction, the sleeping surface is smooth and comfortable. The bed is located along the sofa, which is ideal for narrow spaces. There is no need to think about how to unfold or fold the "Eurobook" and there is no need to move it away from the wall every time - the design of the model moves forward.

How to decompose: Roll out the seat and lower the backrest - the place to rest is ready.

What is good: reliability and, there is no need to move the sofa every time it is unfolded, suitable for narrow rooms.

Things to remember: models without wheels may scratch the floor.

Pantograph

This variety has all the advantages of the Eurobook, and even more. Rising sofas are not equipped with rollers and move apart without touching the floor. The lifting mechanism pushes the seat up and it seems to step forward, leaving the flooring intact. The reverse folding mechanism is also effortless.

How to decompose: pull the seat up and towards you and lower the backrest.

What is good: does not interact with the floor, equipped with a linen compartment, no need to move when unfolding.

Things to remember: unfolding requires more effort than in the "Eurobook".

eurosofa

Folding systems on a metal frame are reliable and durable. Perfect for active daily use, they will easily endure rearrangements and moving.

How to decompose: press from top to bottom on the edge of the back - gently lowering, it will take a horizontal position. To reverse the transformation, pull the backrest frame up.

What is good: has a metal frame at the base, does not require moving the sofa away from the wall.

Things to remember:the only disadvantage of such systems is the relatively high cost.

Dolphin

Sofa, which includes a mechanism"dolphin" , unfolds with particular ease and speed. The device was named after the animal of the same name due to the similarity of movements.

As a rule, it is found in corner sofas. The bed frame is held by special brackets at the level of the main part of the sofa. Due to its compactness, this model will successfully fit into the interior of a small room, and a spacious laundry box under the corner part will help to hide home textiles and household items.

How to decompose: slide the frame out from under the seat and pull it up.

puma

Like a cat, laid out as quietly and accurately as possible. No scratches from the legs or dented tracks from the wheels - even the most demanding flooring will not suffer during daily unfolding. When transforming, minimal effort is needed: pull the seat up a little, and then the mechanism will do all the work.

How to decompose: pull the bed towards you by the seat, and the part below will appear behind it.

What is good:noiselessness and respect for the floor covering, it is easy to unfold.

Things to remember: straight models do not have a laundry box. For corner models, it is located behind the ottoman.

Accordion

It got its name due to the similarity of unfolding with the movement of the bellows of a musical instrument. The bed is flat and wide, without tangible joints. The model belongs to the category of sliding sofas and noticeably eats up space in length, choose it if the space allows such room for manipulation.

How to decompose: pull the loop and the seat will move forward, and the back will turn around and split into two parts.

What is good: ease of unfolding.

Things to remember: requires a lot of space for unfolding, so do not place a table or other furniture in front of the seat. The mechanism needs to be looked after and regularly lubricated.

Caravan

The mechanism of unfolding on a metal frame, reliable and durable. Due to the forward transformation, it organizes a wide berth (similar to a double bed) with a relatively small size of the “caravan” sofa.

How to decompose: pull the seat up - it will begin to describe an arc in the air. At the same time, two additional platforms will appear from under the base one after the other. When the seat is lowered onto the supports, the three functional parts form a flat sleeping surface.

What is good: design reliability and ease of transformation.

Things to remember: since the place under the “caravan” seat is occupied by additional platforms, sofas of this type do not have a linen box.

French cot

French cot or"sedaflex" - light and compact European guest solution. Due to the design features, the model unfolds much longer than the “cougar” or “eurobook”, it does not have a linen box, and also such a sofa is not suitable for daily unfolding. If you need an option for frequent use, look for a French clamshell model with a wooden frame in the support base instead of fabric - this option is more beneficial for the spine.

How to decompose:lift the top seat cushion and pull the legs forward - the sleeper, folded like an accordion, is hidden under the seat.

What is good: lightness and structural strength.

Things to remember: there is no drawer for linen, the bed is too soft (not recommended for daily sleep), sofas with a forward-folding mechanism do not always fit well into narrow spaces.

Rich

Mechanism "Rich" or"Spartacus" - American bifold bed. In its design - a metal frame and a welded lattice, reliable and durable. The system is suitable for both guest and daily use. The main feature of the mechanism is the ability to “remove” the seat under the bed, which automatically facilitates the task of transformation.

How to decompose:lift the seat and pull the system towards you - the folded double bed will appear from under the base.

What is good: easy to fold, reliable and durable.

Things to remember: The design does not include linens.

The sofa is an integral element of the interior of any apartment. At first glance, they are all the same. However, the mechanisms for folding sofas are fundamentally different from each other. This question can play a decisive role in choosing one particular model. Therefore, it is important to understand this topic in advance, and only then go shopping.

There are three main layout options. All of them are popular and are regularly found in the furniture market. There are the following ways of folding and unfolding:

• Withdrawable;
• deployable;
• Folding.

Each of them has its own characteristics. Moreover, all of them are divided into many types, differing both in folding itself and in ease of use. All these varieties you need to know in order to choose the most suitable sofa for yourself.

Withdrawable

This type is very easy to use. All you need to do is pull the loop on the front of the sofa, after which it will roll forward. The roll-out mechanism requires accuracy, but with proper operation it can last for many years. A simple classic sofa of this kind will give the owner comfort during sleep and coziness in the house, achieved due to its compactness.

Eurobook

The Eurobook type is very convenient to use. Unfolding is very easy: the front extends and the rear manually lowers.

Advantages:

• Life time;
• Convenient folding process;
• Smooth surface;
• Inner storage box.

The disadvantages include large dimensions, due to which some people may feel discomfort when sitting. In most cases, "Eurosophy" becomes a good choice.

Pantograph

"Pantograph", which is also called "Tik Tak", is still the same "Eurobook", but has some improvements. When pulled out, the front side of the sofa does not roll on the floor, but is pulled out in the form of a small semicircle.

This type of layout avoids the risk of scratching the flooring. A separate advantage is considered a flat surface for sleeping.

The third name for this unfolding is “butterfly”.

Telescope

Such a mechanism unfolds very quickly: it is enough to pull the edge of the sofa, after which all its components will alternately stretch out in the same way as a telescope.

The telescopic sofa has its advantages:

• Sleeping height;
• Linen compartment;
• Compactness.

The disadvantages include a very large weight.

Conrad

The "konrad" mechanism is identical to the telescopic one. However, it is characterized by a higher bed height and increased convenience. When extending the elements, damage to the floor is excluded.

This is the most reliable mechanism, but its cost is completely unattractive.

Dolphin

In recent years, the "dolphin" has become popular. In the process of unfolding, the movements of the elements resemble a dolphin's dive. Often this type is used in corner sofas. You can also unfold it by pulling on the loop.

• Suitable for daily use;
• Sleeping area;
• Ease of operation.

There are no significant downsides to this design.

Kangaroo

This transformation mechanism is almost identical to the previous one. The only difference is the increased height of the supports. Sofas with such unfolding allow you to get the most comfort from sleep.

The pros and cons come down to the increased height of the supports, which gives more convenience, but reduces the level of reliability.

Ankara

Ankar operates on the same principle as the previous two. You need to pull the seat towards you and pull out the block by pulling it up. It is distinguished by increased reliability and spaciousness of the bed.

Animation of the transformation of sofa mechanisms - video:

puma

The design of the puma pull-out sofa is very simple. You just need to pull up the seat, after which the base will stretch behind it. "Puma" has a high demand in the market, thanks to the safety of the floor and convenience.

Advantages:

• Silent folding / unfolding process;
• Ease of use.

Corner models are supplied with a special box for things, which is located on the back.

Sedalift

Sedalift is easy to use. It is ideal for sleeping, but many models suffer from low durability. The instruction manual calls for the lower part to be rolled out, the folded fabric section to be laid out over the extended base.

• Large bed;
• Ease of unfolding.

Of the minuses: the risk of scratching the floor, as well as low suitability for regular sleep.

deployable

All types of unfolding are comfortable, but this one causes a special feeling for many. The reason is the elegant appearance of the furniture when folded. This type is perfectly characterized by the word "clamshell". It is also often used in Russian names of subspecies.

In the unfolded state, the sofas resemble a folding bed familiar to many. The berth rests on supports and consists of a rather thin material. It is made up of three elements. It is only necessary to pull the edge of the seat so that the transformer sofa takes on a different look, and its two additional parts stand on supports.

What are the mechanisms of sofas - video:

This fastening does not allow you to use the sofa daily. It has reduced strength, and is also not very comfortable when lying for a long time. As a rule, they are used only in assembled form, and rarely laid out.

french book

This is the main representative of such a mechanism. The French book is unfolded by stretching the main part, which leads to the displacement of the other two on the supports.

• Express unfolding.

• unreliability;
• Irregularities on the surface.

It is worth acquiring it only if you have to lie on it extremely rarely. In other cases, it is better to prefer a forward-folding mechanism.

Spartacus

This subspecies was developed by the joint efforts of designers from Russia and Italy. This is the best unfolding sleep mechanism. It is a more durable French clamshell, reinforced with a metal grill.

• Strength;
• Comfort and suitability for daily sleep.

Of the minuses, only that the lifting mechanism requires you to remove the pillows before unfolding.

Rich

This mechanism, also called "American book", is similar to the French version. You just need to pull the seat towards you, after which everything will decompose. It differs in that it consists of two blocks, not three. It also has a thicker surface.

• High strength;
• Compactness.

It has another name - "sedaflex". Of the minuses, only the absence of a linen box.

As the previous version, the sofa of such a plan consists of two parts. The difference is that the transformation requires not raising the seat, but moving the backrest forward, turning the structure over so that the sofa rests on the legs.

• High reliability;
• The presence of springs.

• High price.

The spring mechanism allows you to extract maximum comfort from the furniture.

Accordion

Another popular option resembles, in its principle of action, the musical instrument of the same name. The design stretches in the same way as accordion bellows. Gradually, the sleeping place is pulled out, leaning on the legs. It is similar in size to a large double bed.

• Compactness;
• Ease of lifting;
• Reliability;
• Department for things.

• Risk of floor damage.

"Accordion" is very convenient to use and has an acceptable cost.

Caravan

The mechanism is based on a metal frame. Unfolds by pulling the seat up. At the same time, two platforms are pulled out under the base. After unfolding, it is comparable in size to a large bed. You can assemble a folding sofa very quickly.

Pluses in durability and simplicity. The only downside is the lack of a linen box.

Ribalto

The popular ribalto folding option is distinguished by a well-thought-out design. It attracts attention with its simplicity and convenience. The process of folding such a sofa is simple: you need to lower the back to the seat, then turn them over, laying them on the floor. This is how the bed is formed. There are models with automatic folding.

• Quick and easy folding;
• Space.

There are no significant disadvantages of the mechanism. Also called "slider" in the angular version.

Folding sofas

Modern folding mechanisms include a third type - folding. It is familiar to anyone who has had an ordinary inexpensive sofa. The main plus is the presence of a large size linen box.

Tango

Such a sofa is very functional, because when unfolded it is able to take several positions. It looks like a book. You need to pull the lower part, after which the back will lower.

• Intermediate folding options;
• Flat sleeping surface.

Of the minuses, only the inability to put the sofa close to the wall. There is also a recliner option with a retractable footrest.

Butterfly

"Butterfly" combines retractable and folding mechanisms. Allows you to fold and assemble the sofa as quickly as possible. First, the lower part is pulled out, then the upper one leans back.

• The speed of the mechanism;
• Bed size.

The disadvantages of a sofa of this form include the risk of damaging the rollers used when rolling out. According to the method of unfolding, the mechanism is very similar to the Eurobook.

Book

The classic mechanism for most people is a book. It is very easy to unfold and fold the sofa book. You need to fold the back back, after which it will lower, increasing the area for sleeping. This sofa consists of a metal or wooden frame.

The parameters allow you to fit inside a section for a large linen box. Other advantages include strength, simplicity and low cost.

Dominoes

The mechanism called "domino" combines rolling out, eurobook and dolphin dive. The lower part is extended, the back is folded and in the form of diving it goes down, forming a place to sleep. The characteristic of the sofa does not allow to include a department for things in the design, which makes the mechanism less attractive.

The main advantage of this triple design is the height of the bed.

Conclusion - the final choice

The sofa, as you know, is an integral part of any interior and, as a rule, one of the most important elements in the apartment.

At the same time, the search for the very sofa that will delight you and your loved ones, as well as be able to fit the whole family and fit amazingly into your particular interior is quite difficult. You can Buy a sofa in Moscow of any design, but first you should decide what you need.

In our today's article, we will try to understand in as much detail as possible how not to make a mistake with the choice, what types of sofas exist and how to find the right option for you?

What are the types of sofas

There are a huge number of sofas on the market with a different set of characteristics, which we will dwell on in more detail. It should be said that the choice of a sofa should be made consciously, weighing all the pros and cons, as well as starting from the purpose for which you need it.

After all, you must admit that if you are part of a large family that often comes to visit you and stays for a couple of days, you can’t do without a folding mechanism, and if you just spend a couple of hours a week on the sofa, then you don’t need such a mechanism and not worth paying for it. Now let's take a closer look at the types of sofas.

Transformation mechanism. Whichever sofa you choose, each of them can be equipped with a folding mechanism. And by the way, such mechanisms are also different in the way the sofas are laid out:

• “Book” (the most traditional mechanism that is familiar to everyone, in order to bring this sofa to a horizontal position, you need to raise the seat up until it clicks, and the back will automatically lower, creating a sleeping place, a certain disadvantage of such a mechanism is that you cannot put the sofa close to the wall)
• "Eurobook" (in this case, in order to bring the sofa to a horizontal position, it is necessary to push the seat forward and tilt the back into the vacated space, a significant advantage of this model is the ease of transformation and soft back)
• “click-clack” (this mechanism is also similar in unfolding to a “book”, but in addition to this, it has the function of fixing the back and the ability to install it in several positions, such a nuance will allow you to choose exactly the angle of inclination at which it will be convenient to relax, but in this case, the sofa will also need to be installed at a distance from the wall)
• "dolphin" (this model is most often found in corner sofas, in this case the pillow is pulled out from under the seat and pulled up with a special loop, being installed flush with the main seat, this is an extremely popular mechanism that also has a linen box)
• “French folding bed” (a mattress is tripled under the seat in the sofa, which is subsequently unfolded, this is a very comfortable and compact model, though it is hardly suitable for everyday use)
• "Accordion" (in order to expand the sofa, it is necessary to push the seat forward and expand the double-folded back, such a sofa has large dimensions and transforms into a full-fledged and comfortable sleeping place, although the appearance of such models leaves much to be desired and over time, ugly creases remain on the mattress)

When buying a sofa for home or summer cottage, special attention should be paid to the device of its transformation. The organization of the sleeping space and the durability of the model depend on it. Today, the mechanisms for transforming sofas are very diverse. They are designed taking into account the area of ​​\u200b\u200bthe premises, often they easily turn a sofa into a bed. Even a teenager can handle them. In order not to get confused when choosing, you need to know the principle of operation, the features of each device and the degree of load on the furniture frame.

Types of sofa mechanisms by type of transformation

Three types of sofas can be distinguished, in which special transformation mechanisms are used. They may be located:

• In direct models- representing a familiar design from the main part with or without armrests, having a linen box (and in some versions - a box in which the sleeping block is located).

• In corner structures- with a corner element that has its own functionality in the form of a niche, a spacious box for bed linen or other things. It saves space in your closet.

• In island (modular) systems - structures consisting of separate modules, different in area, but the same in height (depending on their number, they change their functions).

The sofa owes its name to the mechanism of transformation. Although companies come up with an interesting name for each model, the basis of the name that characterizes a particular model is precisely the principle of its mechanism.

The operation of the device does not change - regardless of the type of model (straight, modular or angular). The sofa unfolds forward, sometimes at the same time it rises up, rolls out, extends, turns. If this is a straight view, the base is transformed, in the corner version the sleeping block is added to the corner, forming a rectangular seating area. In modular constructions, the direct part of one module is transformed without affecting others.

The work of any mechanism is not as complicated as it might seem at first glance. The principle of operation of structures is different and has both pluses and minuses. Most of them can fit all types of sofas (straight, corner, modular). For them, the presence or absence of armrests of the model does not matter. However, there are transformation systems that fit only one species.

Sliding and withdrawable

Roll-out forward models are convenient, they are compact when folded, do not take up much space, do not create the impression of a cluttered room. The principle of their work is to roll out the block forward and raise it to the desired height. Sliding structures are models whose details are interdependent, so when transforming one, the other is automatically activated.

"Dolphin"

One of the universal models with a fixed back and a simple transformation device that allows you to place the sofa in the center of the room or close to the wall.

To unfold the model, you need to pull the loop of the box located under the seat, in which the missing section of the bed is located. When the block is extended to the stop, it is lifted by the loop, put in the desired position at the level of the seat. This design forms a spacious and comfortable surface for sleeping, withstands a large weight load.

"Venice"

The principle of operation of the roll-out mechanism resembles the Dolphin. First you need to push the section located under the sofa seat all the way towards you. By driving the transformation device, extend the seat unit, increasing the width of the sleeping bed. After rolling out the block to the stop, it is raised to the height of the seat with the help of loops.

Such designs are convenient. They are often found in corner models, have a lot of free space in the corner elements.

"Eurobook"

An improved "book" is a great option for daily use. It is equipped with a reliable and easy-to-use transformation mechanism that is resistant to daily stress and allows you to place the sofa in the center of the room or against the wall.

To carry out the transformation, you need to take hold of the seat, lift it slightly, pull it forward and lower it to the floor. Then lower the back, forming a sleeping place. Such furniture rarely has a spacious sleeping bed: it is compact both when folded and disassembled.

"Conrad"

The device, which some manufacturers call "Telescope" or "Telescopic", is a withdrawable model. To make a bed out of such a sofa, you need to pull out the section under the seat, raise the base, then put the pillows in the drawer, close the base and place the mats on it, unfolding them like a book.

The design is convenient and allows you to organize a spacious bed without moving the sofa away from the wall. The floor surface must be flat, as for all withdrawable mechanisms, therefore, a carpet laid on the floor may cause the transformation system to fail.

"Pantograph"

The design, known as "tic-tac" - a variant with a walking mechanism. It is an improved version of the Eurobook. To transform, you need to pull the seat forward with the help of the hinges, lifting it up. At the same time, it will itself take the necessary position, dropping down. It remains to lower the back, forming a spacious sleeping place for two.

In some models, the manufacturer has provided additional armrests that limit the seating area. Such a device is durable and does not loosen the body of the model. However, options with a soft back are not very comfortable. To expand such a sofa, it will have to be slightly moved away from the wall.

"Puma"

This model is a kind of "pantograph" - with a slight difference. As a rule, these sofas have a low and fixed back, so these models can be placed against the wall, thereby saving usable floor space.

The transformation is carried out by one extension of the seat - unlike the previous mechanism. When it rises and, falling, falls into place, at the same time, the second block of the sleeping section rises from below (where the seat used to be). Once the seat is in place, the two blocks form a complete sleeping bed.

"Saber"

Convenient roll-out mechanism "saber" provides for changing the size of the sleeping bed with full or partial unfolding. This design is distinguished by a linen box, a high place to sleep.

Sleeper furniture can consist of two or three sections - depending on the model. To expand it, in any case, you need to roll out the seat, under which the linen box is located, forward. At the same time, the backrest leans back, fitting into the desired position.

"Goose"

The original roll-out transformation system, for which you must first roll out the bed block from under the seat, and then raise it to the level of the seat. At the same time, due to the peculiarities of the pillows rising on the back of the structure, there is an increase in the sleeping bed.

Assembly and disassembly of such structures take more time than other systems.

This model is quite complex and not suitable for daily use. But when folded, models with this system are very compact, they look neat, so they can be purchased as upholstered furniture for a summer residence or a living room.

"Butterfly"

Sofas-transformers with the "butterfly" system are considered one of the most reliable, durable and durable. Today, such a system is very popular among buyers. She turns a sofa into a bed in just a few seconds. The transformation is carried out in two stages: the seat is rolled out forward, then the upper block is folded back (to the extended rear section).

The advantage of the model is the significant size of the sleeping bed in the unfolded form and compact assembly. The disadvantage of the mechanism is the vulnerability of the rollers during transformation, as well as the small height of the sleeping bed.

"Kangaroo"

The kangaroo transformation mechanism resembles the dolphin system - with a slight difference: abrupt movements similar to kangaroo jumps. It has a lower part, located under the seat, which, when unfolded, easily slides forward. The retractable block rises to the right place, firmly in contact with the main mats.

The main thing that distinguishes such a mechanism is the presence of high metal or wooden legs. The disadvantages of the system include a short service life with frequent transformation. This design cannot be called reliable.

"Hesse"

The device of this mechanism resembles the "dolphin" system. To expand such a sofa, you will first need to pull the loop of the lower section under the seat, pull it out until it stops. The seat will also roll out. Then the block is raised to the level of the height of the berth, the seat mat is lowered back, forming a full-fledged sleeping bed in three parts.

This system is used in straight and corner sofa models. However, it also has its drawbacks, because with the constant rolling out of the block, a large load is created on the frame of the sofa. In addition, if you do not take care of the rollers, the mechanism will have to be repaired after a while.

folding

Mechanisms with unfolding sections are no more complicated than roll-out ones. Usually they are based on the most versatile systems (“frog”), so they do not require more than a few seconds to turn the sofa into a full-fledged bed. For their transformation, it is not necessary to roll out sections from under the seat.

"Click Clack"

The design of such a mechanism has a second name - "Tango". Some manufacturers call it "Finnish". This is a bifold model, an improved version of the classic "book".

To expand the sofa, you need to raise the seat until it clicks. At the same time, the back is lowered back, the seat is slightly pushed forward, revealing the two halves of the block into a single surface for sleeping.

"Book"

The simplest transformation mechanism, reminiscent of opening a book. To make the sofa look like a bed, you need to raise the seat, lowering the back. When the back begins to fall, the seat is pushed forward.

"Scissors"

The corner sofa transformation mechanism, the principle of which is to rotate one section to another - with the unfolding of blocks and reliable fixation of the sections with a metal fastener from below. In this case, a compact sleeping bed is formed with a bedside cabinet, open as a result of the transformation of the sections.

"Caravan"

The design, the unfolding of which is similar to the Eurobook system, however, it has a fixed back, and instead of two sections of the sleeping bed, three are laid out. At the same time, the seat is also raised and simultaneously pulled forward, then lowered to the desired position on the floor. At this time, the next one moves out from under each block, folding together into a single area for sleeping. Comfortable design with a spacious seating area. In some designs, instead of the third section, a folding pillow is used, which stands in front of a fixed back.

Daytona

System with folding fixed cushions that act as a backrest. The device of the mechanism is a bit like a "clamshell". To transform the sofa into a bed, you need to raise the pillows to the top position, then put the lower ones in the allotted places, grab the handle and turn the seat unit down, revealing a two- or three-piece sleeping bed. When the sleeping place decomposes, you will need to lower the pillows, wrapping them on the bed.

"Tornado"

Folding mechanism designed for daily use. The design is based on a double-folding "folding bed", which is hidden in the usual position of the sofa. It transforms without removing the seat, after tilting the back of the model. The design is convenient, it is not very difficult to disassemble, it has steel elements and mesh at the base, as well as mats of moderate rigidity.

deployable

The following devices provide transformation by deploying sections. In most models (with the exception of the "accordion"), the back is fixed and does not participate in the disassembly of the sofa.

"Accordion"

The device of the mechanism, reminiscent of stretching accordion furs. To expand such a sofa, you just need to pull the seat. At the same time, the backrest, consisting of two blocks connected from above, will automatically fall down, unfolding into two halves.

"Belgian cot"

This design is similar to a "cot" hidden under the sofa's modular seat mats. Even externally, the system resembles a familiar piece of furniture with metal supports. The only thing that makes it different is that it is fixed at the base of the sofa and unfolds right out of it, turning the seat unit down

"French cot"

An alternative to the "accordion" system - with the difference that in the latter the bed is made up of three blocks (according to the principle of folding a fan), and in this system the blocks are wrapped inward and unfold when unfolded. They are equipped with stands and have a narrow type of packing, which is a disadvantage of such designs.

If you are going to expand the sofa, you need to remove the modular pillows from the seat.

"American cot" ("Sedaflex")

Such a mechanism is more reliable than its French counterpart. It is not necessary to remove the cushions from the seat before transformation. The system implies identical sections (there are three of them), which are laid out one after another when the seat is raised. Such a mechanism is quite durable, but it is only suitable as a guest option, because it has thin mattresses, there is no compartment for linen and steel structural elements are felt at the joints of the sections.

"Spartacus"

A variant with a clamshell mechanism. The folding structure is located under the seat, consisting of modular cushions. In order for the sofa to become a bed, you need to remove the pillows, freeing the clamshell blocks. Since they are in the wrapped position, they first take the top one, set the desired position by exposing the metal support, and then unfold the remaining sections. This design is not designed for daily transformation - like analogues.

with swivel mechanism

Models with a rotary mechanism differ from other systems in ease of transformation. In them, the load on the frame is minimal, since there is no need to roll out the sections to the stop. They do not need to lift additional blocks.

Both the integral part of the sofa and the component of each block can turn, depending on the model. Such a mechanism is used in corner models, connecting the two halves of the sections with blocks into a single bed. The principle of operation of the system is based on turning half of the block by 90 degrees and rolling it to the other part of the sofa (with subsequent fixation).

With folding armrests

Folding armrests - a unique technique of the transformation mechanism. Today, such sofas are in the center of attention of designers. With their help, you can furnish the children's room, if necessary, adjusting the dimensions of the furniture.

"Lit"

A peculiar design that allows you to change the size of the sleeping bed due to the deformation of the armrests. At the same time, the sidewalls themselves can be positioned at any angle - and even the positions can be different. To transform the sofa into a single bed, you must first lift the armrest inward until it stops, and then bend it outward. These designs are designed for direct varieties of sofas, they are bought for children and teenagers.

"Elf"

A system convenient for small-sized rooms and children's rooms, a large area for transformation is not needed. Furniture can be placed against the wall. This sofa can be compared with its counterpart, it has a compact body and ample space for storing bedding. The seat surface and armrests form a single unit that folds out in length.

With advertisers

Such devices of the mechanism are somewhat more complicated than the others. Moreover, the design of the mechanism allows you to easily change the position of the angle of inclination of the backrest and footrest, creating the most comfortable position for the user. This sofa can be equipped with a massage mechanism, it has a rather solid appearance, but the transformation into a bed is not carried out.

Double and triple folding systems

The mechanisms of transformation may vary. As a rule, the more complex the mechanism, the more components of the bed (the number of additions). Folding and pull-out sofas fall into this category.

Which one is better for daily sleep?

When choosing a sofa for daily use, you need to pay attention to designs in which the load on the frame during the operation of the mechanism is most uniform and does not loosen the body.

It is necessary to choose the right not only the mechanism, but also the degree of rigidity of the backrest, seat. You also need to choose a good upholstery material and pay attention to models with the ability to change covers.

Filling blocks

When choosing a sofa for daily sleep, it is worth considering the block filler. It is of two types: spring and springless.

The first packing options are distinguished by the presence of twisted springs (the position is vertical). We can distinguish between dependent and independent types. In the first case, the sofa bends down. Such mats are unreliable in that they do not have proper support for the spine during rest or sleep (sitting and lying down).

Independent type springs do not touch each other, so each of them works independently, without forcing others to sag where they do not need to. As a result, the back always remains flat, and the load on the spine is reduced.

Springless mats have a remarkable orthopedic effect, this is the prevention of problems associated with the spine. They are not only safe, but also very comfortable, provide a complete and proper rest during sleep.

This type of filler is hypoallergenic, this stuffing is not subject to the formation of fungus, mold. It is resistant to dust accumulation, because there are no significant voids. The best springless fillers include natural or artificial latex, coir (coconut fiber), PPU type HR.

What's better?

In order for the sofa to serve for a long time, it is better to choose a quality type of filler: a block with independent springs, latex or coir. It is very good if the type of mat is combined - when not only the core of the stuffing is added, but also other material (to give the desired rigidity).

If a latex block doesn't fit the budget, look into HR-type furniture polyurethane foam or synthetic latex. These materials are somewhat inferior to expensive packings, but with proper operation they will last for 10-12 years.

As for the transformation mechanism, “dolphin” designs and their analogues, models with a “clamshell” system, are not suitable for daily use. The most reliable designs for every day are "Eurobook", "Pantograph", "Puma" and rotary mechanisms.

How to choose the right mechanism?

It is impossible to single out one mechanism unambiguously. The choice depends on several factors:

• designated space for the sofa (folded and disassembled);
• the purpose of the sofa (guest option or alternative to the bed);
• load intensity mode (weight control, taking into account the choice of the “correct” seat and back blocks);
• simplicity and ease of use (the sofa should be light, because complex systems break down more often and cannot always be restored);
• the correct diameter of the steel elements (at least 1.5 cm).

In order for the purchase to be successful, the sofa lasted for a long time, you should pay attention to:

• flawless course of the mechanism in operation (it should not jam);
• lack of looseness of the structure during transformation (this is an obvious marriage that reduces the life of the sofa);
• absence of rust, scratches, dents, mechanism assembly defects;
• high-quality upholstery material that will not wear off from the frequent transformation of the sofa (when sections come into contact);
• strong and durable metal of the mechanism, resistant to heavy weight loads (two or three people);
• the reliability of the frame components to which the transformation mechanism is attached.

It is important to choose the mechanism in which there is no complex design. It will be less prone to breakage.