I suggest you get acquainted with the most common mechanisms for transforming a sofa into a sleeping place. You will find out the pros and cons of each and you will be able to choose the type of folding sofa that suits you.

• Book

  Familiar to everyone from Soviet times, the type of sofa layout. Outwardly, the sofa resembles an opening book.

  Pros: With proper execution, it forms a fairly comfortable sleeping place. Large laundry box. It is possible to use high quality spring filling. Suitable for daily use.
  Minuses: Restrictions in design - the seats and backrest are a berth, which means they should be flat and close to a rectangular shape. The sleeping place is narrow. If the width of the bed is increased in the model, then when unfolding it is necessary to move the sofa away from the wall, which is already inconvenient. A large number of mechanisms of different manufacturers. When the "book" mechanism fails, it is not always possible to find a suitable replacement.

• Click-gag

  A modernized version of the "book". In addition to the "lying" and "sitting" positions, it has a third intermediate version "reclining". Not to be confused with "Tick-tock" - this is a completely different mechanism.

  Pros: There is a box for linen. Suitable for daily use. There are only two types of mechanisms (locks) - it is very easy to pick up and replace if it breaks down. It is also easy to replace the wooden battens of the sofa base.
  Minuses: The same as in the "book" - the need to move the sofa away from the wall when unfolding, design restrictions. It is carried out on a metal frame with wooden battens (lamellas), which break when the point load is exceeded. However, the broken slats in such sofas can be simply replaced with new armor.

• Eurobook

  Perhaps the best option if you just need a sofa bed for daily use. It has all the pluses of the "book", but is devoid of its minuses.

  Pros: Enough reliable mechanism, due to its simplicity, or rather its absence (ordinary loops are used). Wide berth. It is possible to use high quality spring filling. With proper execution, there is no need to move away from the wall. Large linen box. The best option for daily sleep.
  Minuses: When folded, additional back cushions must be used.

• Tick-tock (aka Pantograph)

  A kind of "Eurobook". It differs in that the seat does not roll out on wheels, but steps forward using a mechanism with springs.

  Pros: This is the same Eurobook, only there are no wheels rolling on the floor.
  Minuses: In contrast to the usual eurobook, a walking mechanism is installed, which makes the product more expensive.

• Accordion

  There are many modifications of this type of mechanism. From conventional hinges based and wooden frames using the "book" locking mechanism to factory all-metal frames with birch armor.

  Pros: Any width of the berth. Suitable for daily use.
  Minuses: Limitations in design. It is more like a "youth style".

• Dolphin (aka Mikrolift)

  Easy to use mechanism. Most often used in corner sofas.

  Pros: It just unfolds. Reliable enough. Suitable for daily use when implemented correctly.
  Minuses: There is no box for linen (in corner sofas this is usually compensated by the presence of a side box). Often, manufacturers put a much thinner filler (foam rubber) on the roll-out part than on the other parts - it is inconvenient to sleep on such a structure.

• Roll-out (aka Telescope)

  It was a very common system 10 years ago. Has several modifications.

  Pros: Ease of unfolding. There is usually a small laundry box.
  Minuses: Hardware often fails. In the vast majority of models, there are strong differences in the thickness of the pillows across the berth, as a result - reduced comfort. The berth is low. This is more of a guest option, and not for daily sleep.

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

Book ("click-gag")

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

• Three positions of the back: sitting, lying, "relax" (intermediate position with a half-reclined back).
• Compactness. Doesn't require a lot of space to spread out.
• As a rule, it is possible to provide a linen drawer.
• The berth 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 name similar mechanisms: the seat slides out due to sliding along the guides, the back is lowered manually.

• Durability: simplicity folding sofa mechanism excludes breakdowns.
• Large selection of standard sizes.
• Large linen box due to the lack of internal parts of the mechanism.
• Smooth sleeping surface.

Eurobook "Tick-Tock"

Mechanism: among others types of transformation of sofas this one is characterized by a particularly gentle attitude to the floor covering: the wheels do not move on the floor, the seat moves in a trajectory that resembles 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 the similarity with the principle of stretching the bellows of this musical instrument. The seat rises until it clicks and then slides out until it stops.

• Minimum assembled size.
• Large berth size.
• The reliability of the mechanism.

Withdrawable

Mechanism: the seat pulls all other parts with it. To lay out the sofa, you need to pull on the seat strap hidden at the bottom.

• Of all mechanisms for the layout of sofas this one is the most reliable.
• Takes up little space when folded
• Large size of a berth with a small size of the folded structure.

Cot

Includes the following types transformations of sofas: American and French. They have some differences, but they are similar in that the assembled berth is under the seat.

French view

Mechanism: the seat must be pulled towards you and then upward, after that "unfold" the folded sofa. Before that, you need to remove the pillows.

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

American view ("sedaflex")

Mechanism: folds out similarly the French mechanism, while the headrest does not need to be removed, it will move to the desired position by itself.

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

Dolphin

Mechanism: movement of the berth at a given sofa folding mechanism resembles a dolphin dive. Pull on the strap attached to the seat and extend it fully.

• The most durable of all types of transformation of sofas... Suitable for daily unfolding.
• The sleeping place is large and flat.
• Easily unfolds and folds.

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 sleep.

Mechanism: the part located under the seat extends and extends further, dragging the seat, and then part of the backrest, after which the first part rises up, one level with the seat, and part of the backrest drops to the same level.

• A sleeping place similar in quality to an orthopedic mattress.
• Significant space savings when folded with a relatively large berth.

25.07.2019

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In this article, we will briefly and informatively tell you about the most common sofa transformation mechanisms that are presented on our website. Our goal is to help you quickly navigate these not always understandable names and find a suitable option for you.

To do this, we will consider sofas from the point of view of the consumer, and these are just 2 main criteria:

1.Convenience of daily sofa unfolding;

Now let's list the most common sofa mechanisms:

1. Book;
2. Tick tock;
3. American clamshell (Sedaflex);
4. French clamshell (Mixotoile);
5. "3-fold mechanism";
6. Spartacus.

Withdrawable mechanisms:

7. Eurobook (Eurosophus);
8. Dolphin;
9. Kangaroo;
10. Konrad (telescope).

"Book". The principle of using this mechanism is simple: you need to raise the seat until it clicks, and then lower it - the back will also lower. The "book" is the simplest mechanism from the point of view of use - it is easy to unfold and difficult to break.

Pros: the berth is located along, and not across the wall. Such a folding mechanism is perfect for small-sized premises, because it does not take up much space, both assembled and disassembled.
Minuses: when unfolding the sofa, it must be moved away from the wall, which is completely inconvenient for daily use. There is a risk of damage to the floors if the sofa is not lifted. A bump or notch may form where the backrest and base meet, interfering with sleep comfort and limiting space.

"American clamshell" or Sedaflex. Here the sleeping place consists of two sections. To unfold the sofa, you need to remove all the pillows, pull the seat up and towards you using a special handle and unfold the sections until they stand on the supports. The sofa unfolds in two steps: first, the first section will open, and the second will unfold behind it. Maximum load - 240 kg.

Pros: reliable transformation mechanism made of high-quality wear-resistant materials. The Sedaflex sleeping place turns out to be smooth without creases and bends. This sofa has a reinforced metal carcass and mesh, which provide high rigidity and a comfortable sleep. Also, this model allows you to use high quality 12 cm mattresses.
Minuses: there is no linen drawer, and there may be seams on the sleeping surface.

"French clamshell" (Mixotoile). This transformation mechanism is similar to the American clamshell, but unlike its "American version" it consists of three parts, and the rest - the principle of unfolding is absolutely identical. The "French folding bed" has a completely metal frame, to which a high-density tarpaulin awning is attached with the help of springs. There are special wooden slats under the tarpaulin, which give an orthopedic effect to the sofa. The maximum load on the mechanism is 180 kg.

Pros: soft berth, equipped with a 50 cm thick mattress.
Minuses: uneven bed, does not have a linen box.

"Spartacus". Structurally, the mechanism is identical to the "French clamshell" - it also consists of three sections and is folded in the same way. However, there is a significant difference that can influence your purchasing decision. "Spartak" is equipped with a reinforced metal mesh which allows him to withstand high loads, and you - to use the sofa for daily sleep. Maximum load up to 240 kg.

Pros: due to the reinforced frame, the model is highly durable, and therefore its durability indicators are higher. Has a spacious sleeping place.
Minuses: Like all clamshells, the Spartak mechanism has a not very aesthetic side view when unfolded. Due to the improved quality, the mechanism will cost more than "clamshells".

Tick-tock. The main advantage of tick-tock is ease of use. The mechanism unfolds in two steps: pull the seat up and forward, and then lower the back to the vacant seat. It can even be done with one hand! In this case, the maximum load on the berth is 240 kg.

Pros: the mechanism provides a spacious sleeping place and does not hurt flooring when unfolding.
Minuses: when folded, the sofa has a fairly wide seat, which is not always convenient. If the mechanism breaks down, repairs will cost quite a lot.

Three-fold mechanism and the French clamshell mechanism are essentially the same. They fold out the same and look the same. But many manufacturers share them, explaining that they use different materials for the manufacture of. Therefore, when choosing a sofa with such a mechanism, specify what it is made of in order to avoid surprises later. The maximum load on the berth is 180 kg.

Pros: soft and wide berth.
Minuses: there is no box for linen, the sleeping place has irregularities, and when unfolded, the sofa does not look very aesthetically pleasing.

Draw-out mechanisms.

IMPORTANT! Pay attention to casters and supports on roll-out sofas. They must be made of soft materials - this will ensure the safety of your floor!

"Eurobook" is an improved version of the book mechanism. It should be said that this is one of the most popular vacant mechanisms on the market. The model consists of two parts: a backrest and a seat, and also has a spacious box for linen. To unfold the sofa, you need to remove the back cushions, roll out the seat towards you until it stops, and lower the rear back to the vacant space.
All parts of the sofa with such a mechanism should fit snugly together, but if cracks appear in the sofa, this indicates the low quality of the product. Maximum load is 240 kg.

Pros: such a sofa looks good both against the wall and in the middle of the room (it can be used for zoning a room, if space permits). "Eurobook" provides a full-fledged spacious sleeping place. Minuses: when extended, the seat “rides” on the floor and may damage the floor covering.

"Dolphin"- perhaps one of the most convenient and common mechanisms on the market. It is very easy to unfold: just roll out the additional section from under the seat and pull the fabric handle towards you - the sofa is ready to use. The maximum load on the mechanism is 200 kg.

Pros: sturdy construction, guaranteeing the durability of the mechanism. The sofa provides a spacious sleeping place, there is a spacious linen box.
Minuses: when unfolded, there is a barely visible joint between the seat and the roll-out section.

"Kangaroo". This mechanism is very similar to the previous one in terms of unfolding. Its only difference from the "dolphin" is a higher berth.

Pros: solid construction, wide berth, large linen box.
Minuses: when unfolded, there is a joint between the seat and the roll-out section.

"Konrad" (telescope). This mechanism has three sections. To unfold, pull on the lower draw-out part (first section), behind which all the others will extend. After you have pulled out all the sections, you need to take the upper part of the first section and unfold it by laying it on the second. IMPORTANT! "Telescope" is very compact against the background of other mechanisms, and also has an orthopedic lattice. The maximum load on the berth is 180 kg.

Pros: compactness when folded and space when unfolded.
Minuses: difficult to move - the mechanism and the sofa are heavy.

1. If funds permit, choose a hardwood sofa frame (oak, beech, birch).
2. Carefully inspect the mechanism, it should bear the manufacturer's mark. Unfold and fold the sofa, while all the positions of the back and armrests indicated for the model should work.
3. If you are looking for a sofa "for a long time", then it is better to choose a model with an independent spring block, it is much more durable than the usual "snake", dependent spring block or plain polyurethane foam(PPU).
4. When buying a sofa with a mechanism on a wooden base, give preference to oak, beech or birch - their durability is much higher than that of other types of wood.
5. Remember, the length of the berth depends on the design of the sofa. If you are tall, pay attention to sofas like "Eurobook" or sofas with roll-out mechanisms. Their kinematics make it possible to make the bed longer than two meters.

Happy shopping! Go to the site to see our range.

They use a variety of layout mechanisms for sofas. There are no universal options. Depending on the method of operation, the size of the room and some other conditions, one or another mechanism for transforming the sofa is selected. In order not to be mistaken, you need to heed the advice of experts. They will help you understand what factors you need to pay attention to first.

When studying which mechanism for transforming sofas is better, you should take into account a number of recommendations. There is a generally accepted rule. All sofas are conventionally divided into guest views and designed for daily sleep. If the mechanism is chosen correctly, the furniture will last a long time and its operation will be comfortable.

If the sofa will be laid out often (sleeping version), you should not purchase products with a complex layout procedure. In this case, the simpler the better. Guest sofas, on the other hand, are not designed for the daily movement of the system, so their mechanism will not be as durable as the sleeping varieties.

You should also pay attention to such criteria as the maximum load of the berth, the orthopedic qualities of the model, its appearance, the layout procedure, the comfort of the sleeping place, as well as the comfort in the sitting position. Therefore, the sofa transformation mechanism is important factor influencing the choice.

Guest Models

Sofas with folding bed mechanism

The mechanism for transforming a clamshell sofa has several popular versions. The transformation principle here is simple: the berth is located directly under the seat. For the front panel, which is located at the bottom, the seat is pushed forward. There are French and American clamshells, their principle is very similar.

The French rolls out in the form of a scroll that unfolds in 3 steps. This mechanism is distinguished by its compact dimensions, so it is built into even very sophisticated sofas. However, this model is not used on a daily basis.

The American clamshell is designed for heavy loads. This sofa is practical and durable. However, this feature significantly raises the price of this furniture. To transform the sofa, you need to raise it a little, and then pull it towards you. This type of mechanism does not harm the flooring, but it needs to be lubricated periodically to avoid squeaks.

Draw-out mechanism

One of best options a roll-out sofa is considered for sleeping. The transformation mechanism is very simple here. The berth is obtained by rolling out additional sections from under the base. Due to its simplicity, the presented mechanism is called one of the most reliable.

Another advantage of such products is the absence of requirements for the size of the room. It is installed even in small spaces... Moreover, in the unfolded state, the place to sleep will be long and even. The disadvantage of such mechanisms is the exactingness of the type of flooring. It should be strong, not sag under the weight of the sofa. In the process of transformation, the base slides along the floor. Nothing should interfere with this movement. It is better if the selected model of the presented type has rubber wheels.

Sofas with accordion mechanism

Mechanisms for transforming sofas "accordion" are gaining more and more popularity. It is very easy to apply it in everyday life. The principle of the design is to extend the accordion. For this, the seat rises slightly. Next comes a click. The back of two parts (in the usual state it is folded into a house) is stretched. This is similar to the movement of an accordion.

With this transformation, a flat surface is formed. When unfolded, the sofa looks like a regular bed. Usually "accordion" has removable covers for all soft elements. This makes the cleaning process easy. Almost all models have a linen box in the kit. In some cases, others may be present decorative elements... It is better if the basis of such furniture is a metal frame, steel frames. You can choose an orthopedic mattress. For a small room, this option is acceptable, but you need to take into account how much space the sofa will take when disassembled. There should be no extraneous things on the way of its layout. There should be at least 0.5 m of space to the opposite wall when the "accordion" is disassembled.

Sofas with Dolphin mechanism

Check out the Monza Sofa with Dolphin Mechanism!

The transformation mechanism of the dolphin sofa can also be called the kangaroo. It is most often found in corner sofas. The front part is extended. An additional pillow is taken out of it using a loop. She forms a sleeping place. The dimensions of these sofas are quite large. The storage box is hidden in the corner unit. The advantage of this model is a reliable and simple mechanism. This is an option for daily sleep. It is able to withstand heavy loads (about 200 kg). When laid out, an additional part of the structure takes up a minimum of space in the room. It should also be noted that the berth is spacious and has a fairly high rise above the floor level. The cost of the furniture presented is relatively low. This makes the dolphin very popular.

Swivel mechanism

One of the most modern is considered to be a corner sofa with a swivel transformation mechanism. It works very simply. One half of the furniture rolls to the side 90º and then rolls over to the other side of the sofa. This does not require the use of significant physical force. All movements are soft. After the transformation is completed, the rotary part is fixed. This creates a comfortable and spacious sleeping place. The simplicity of the design makes the mechanism durable. It is possible to use orthopedic sofas for sleeping. The set includes a spacious lower box for things. On sale, these types of sofas are still quite rare. Their cost is above average. Therefore, if you wish, you can purchase an easy-to-use, reliable and modern sofa, which is the angular swivel mechanism, you will have to spend some time looking for a responsible, trusted supplier.

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Mechanisms for transforming sofas - briefly about each

First, let's define what the sofa transformation mechanism is. Another name is often used - the sofa folding mechanism. Professionals prefer the concept of transformation, so I will use it further.

Under these names is an element that transforms the sofa into various shapes and positions. For example, a sofa from a seated position turns into a sofa bed or a sofa for "relaxation" with a partially reclined back. Another example of transformation is changing the shape of the sofa. For example, a corner sofa can be turned into a straight one or vice versa.

Why is it important to choose the right sofa transformation mechanism

• The mechanism is one of the main ones, therefore, the overall service life of the transformer sofa also depends on its reliability.
• The mechanism affects the convenience and ease of converting the sofa to different positions.
• Depending on the transformation mechanism, different free spaces in the room will be required to bring the sofa into the desired positions.
• And depends on the type of transformation mechanism. After all, it is under her that the mechanism is hidden from our eyes.

Sofas without transformation mechanisms

Such sofas, by definition, do not contain transformational elements and cannot be laid out. Sofas without mechanisms are used to create seating for two or more people. You can offer this option for a small size. Less commonly, they can be found as a sofa for sleeping. Although for people without excess weight, the use of a sofa in this capacity is quite acceptable.

Non-foldout sofas can be used as separate sofa modules. By using several such modules, especially of different sizes, you can change the shape of a sofa made up of modules.

Monolithic sofa is suitable for hallway, for the living room and decorate the kitchen or dining room. This kind of sofas can often be found in public places.

Pros: there is no mechanism, which means there is nothing to break. The service life of monolithic sofas is longer than the service life of folding sofas.

Minuses: there is no mechanism, there is no possibility of converting the sofa. Monolithic sofas are not suitable for organizing sleeping places, especially if you need to put two or more people.

The mechanism of transformation of the sofa "Book"

The Book Sofa can be folded out in two positions: a sitting sofa and a sleeping sofa.

The sofa is converted to the sleeping position by tilting the back of the sofa back.

You don't have to move the sofa away from the wall while unfolding, but keep in mind that the design of the sofa requires free space between the wall and the back of the sofa.

The folding parts of the sofa are the frames of their wood or metal with spring blocks fixed to them. In addition to the spring blocks, another filler can be used - foam rubber or latex. A sofa with a spring block is preferable as it has the best performance in terms of durability and comfort.

The “Book” sofa often contains a section for bedding inside.

Dignity: robust, reliable, time-tested mechanism. Suitable for frequent use and the organization of a berth.

disadvantages: The sofa can only be folded out in two positions - sitting and lying. When transforming in the part where the folding parts of the sofa are connected, a bulge or hollow may appear, which will negatively affect the comfort of sleep. The “book” cannot be placed tightly against the wall, since the mechanism requires free space between the wall and the back when unfolding.

The mechanism of transformation of the sofa "Tango"

While preparing this article, I came across the fact that manufacturers are inventing their own names for mechanisms of the same type. This leads to confusion. The same is the case with the "Tango" mechanism.

The "Click-clack (clack)" mechanism possesses similar properties. In fact, both mechanisms are similar to the "Book" already described above.

The main difference from the "Book" consists in the ability of "Tango" ("Click-clack (clack)") to take intermediate positions of the back of the sofa when unfolding.

The backrest, in addition to fully reclining horizontally, can be in a reclining, half-sitting position, which creates additional comfort for rest.

"Tango" sofas have a section for storing the bed

Advantages: the mechanism allows you to fix the back of the sofa in several positions, the "Tango" sofas are small, when unfolded into a plane, the sofa creates a surface without irregularities and bumps.

Disadvantages: there is no way to put the sofa tightly against the wall; when transforming the backrest, you need a place for unfolding.

The mechanism of transformation of the sofa "Eurobook"

Mechanism operation: the seat of the sofa moves forward on roll-out rollers, a niche is formed in shape and size, identical to the back cushions of the sofa. The pillows fit into a niche, resulting in a flat bed surface.

Dignity: ease of converting a sofa into a bed, the simplicity of the mechanism itself - read its high reliability, a large and level place to sleep, large niches inside the sofa for storing things and a bed.
disadvantages because of the wide seats, it is not convenient to sit on the sofa, leaning against its back, especially for people with short stature.

The mechanism of transformation of the sofa "Pantograph" ("Tick-tock", "Puma", "Walking Eurobook")

With "Pantograph" the same story as with sofas "Tango". Apparently for the sake of a catchphrase, sellers and manufacturers have come up with a number of striking names for essentially the same mechanism. So, what else I managed to meet under the guise of "Pantograph" - "Tick-tock", "Puma" and even "Walking Eurobook." ...

The Pantograph originated as a variant of the Eurobook mechanism. The difference is that there are no roll-out rollers in the "pantograph."

The principle of the mechanism: For unfolding, it is enough to pull up the sofa seat by grasping its edge in the middle. Often sofas are equipped with hinges - handles for easy folding. Pulling up the sofa seat, you activate its mechanism, which pushes the seat up and forward and at the same time opens the legs of the support and stands on them. The back of the pillow fits into the resulting niche. The result is a flat, without visible joints, a place for two people to sleep.

Dignity: sofas with "Pantograph" have a comfortable place to sleep. The mechanism is easy to unfold. A sofa like this will not ruin your flooring, since parts of the sofa do not slide on the floor when unfolding.

disadvantages: the mechanism is expensive because of this and the cost of the sofa becomes higher. Due to the wide seating position, it is not comfortable to sit on the sofa, you need to use additional pillows

The mechanism of transformation of the sofa "French folding bed"

The principle of the mechanism: The sleeping surface of the sofa consists of three sections. You need to pull on the edge of the seat and stretch them forward. The sections will open and stand on the legs - supports. When folded, the sections are hidden inside the sofa body.

The sofas of this series are not suitable for frequent use, since the mechanism is rather weak for wear.

There is no storage space for the bed in these sofas - the entire interior space of the sofa is occupied by a folded berth.

When assembled, the "French folding bed" is small, but unfolding requires free space (at least 1.50 meters) in front of the front of the sofa

Dignity: small when assembled.

Disadvantages: uncomfortable sleeping surface, no storage space for the bed, short term service (about five years)

Output: you can use the "French folding bed" for organizing seating and for rare use as a berth - the option unexpected guests stayed and stayed (they won't sleep on such a sofa for a long time and will soon run away))).

Sofa transformation mechanism American folding bed (Sedaflex, Sedaflex)

The principle of the mechanism: The sleeping place has three parts-sections. You need to pull on the seat of the sofa, as a result of which the sections of the berth will open and stand on the supports. Unfolding goes in two steps - first one section will open, and the next one after it.

In fact, this mechanism is identical to the French clamshell mechanism.

Its main difference is reliability..

The frame of the sofa and the mechanism itself are made of wear-resistant materials. This makes it possible to regularly use "Sedaflex" as a transformable sleeping bed.

Dignity: easy to operate, has good indicators of reliability and durability.

Disadvantages: there is no room for linen, the surface of the bed has seams.

The mechanism of transformation of the sofa "Italian folding bed

This transformation mechanism refers to the double-folding mechanisms as well as the American clamshell .. The double-folding mechanism is a mechanism that is brought into working position in two steps.

The principle of the mechanism

For unfolding Italian clamshell from the sofa to the bed, it is necessary to pull the upper part of the back of the sofa towards you (usually the back has a special loop for this purpose).

• In the first step of unfolding the backrest of the sofa, together with the cushions, leans forward and then lies down and rests on the seat of the sofa.
• In the second stage the inner part of the sofa structure rotates around its axis, it resembles the unwinding of a mattress rolled into a roll. After this reversal, the support legs open, the previously hidden ones were hidden and folded inside the structure and the resulting sleeping place of the sofa rests on them.

Thanks to the reinforced springs, the mechanism can be folded and unfolded without significant effort.

Advantages of the Italian clamshell: this mechanism is the most reliable and durable clamshell, it became possible thanks to the use of reinforced metal pipes in the frame of the mechanism, the sofa when folded has a compact size, when unfolding there is no need to remove the pillows from the seat of the sofa, Italian folding beds, among other folding beds, have the thickest and most comfortable mattress for sleeping, in addition, slats and belts are used in the frame, which create an orthopedic effect.

disadvantages lack of storage space, high price

The mechanism of transformation of the sofa "Accordion"

The principle of the mechanism: "Accordion" acquired its name for the similarity to the principle of operation of the bellows of the accordion (stretched back and forth). The sleeping space of the sofa also stretches forward, as it were, when the sofa is put into sleeping position, and rests on the extended supports. After the transformation, we have an even, although with minor seams, a spacious place to rest and sleep.

Convenience of the sofa "Accordion" in its compact size when folded. But do not forget that to unfold the sofa, you will need free space in front of its front part (you need at least 1.50 meters)

Accordion models are often equipped with an additional storage cabinet bedding Such a curbstone is located in the area of ​​the back of the sofa.

There is no storage space inside the sofa itself, the space is occupied by a folded sofa.

Advantages: Reliable and stress-resistant mechanism, which also increases the service life of the sofa. Equipped with additional storage units. Ease of putting the sofa into a sleeping position.

Disadvantages: the sofa slides on the floor when brought to sleep and may damage the floor covering.

The mechanism of transformation of the sofa "Spartak"

The principle of the mechanism: Mechanism triple fold... You need to pull on the sofa seat and it will expand in three steps while standing on the extended legs.

The design of the mechanism was developed by Italian engineers. This mechanism belongs to the metal-frame. The frame is made of shaped pipes on which a dense mesh is mounted made of metal rods 4 mm thick. The frame consists of three sections. The mesh creates a good orthopedic effect. On top of the mesh is a polyurethane foam mattress. It is comfortable to sleep on such sofas. The design of the mechanism provides a large berth in length, which is especially important for tall people. The mechanism is very reliable since it does not contain wooden or plastic parts.

Advantages: reliability and durability, easy to unfold, can be used daily, flat and large berth
Disadvantages: there is no space for storing bedding, since the mechanism takes up the entire interior space of the sofa when assembled, you need to remove the cushions before unfolding.

Sofa with unfolding on the floor

The principle of the mechanism The sleeping area consists of two sections. When folded, the sections are hidden inside the sofa body. To unfold the sofa, pull up on the inner edge of the sofa seat. Then pull the sections forward towards you. The berth has no supports and is laid out directly on the floor.

This is not to say that the sofa is comfortable for sleeping, since the joints of the sections are palpable and the berth itself is located very low. Therefore, such models can be used for occasional use as a bedroom. But for sitting it is quite an acceptable option.

Dignity: compact size when assembled, the cheapest kind of folding sofas.
disadvantages: not comfortable sleeping, no storage space for bedding

The principle of the mechanism: The berth consists of two segments. When assembled, the segments are located in the sofa body. To unfold the sofa, pull the lower part from the front. After that, it will roll forward into the working position. It remains only to fold the pillow to the vacant place. As a result of the transformation, a comfortable place to sleep is formed.

Roll-out sofas are durable and reliable models, well suited for frequent use. Contains internal storage space for bedding.

Advantages: the most reliable, have a comfortable place to sleep and compact dimensions when assembled.

disadvantages: the roll-out rollers of the sofa can ruin the flooring when unfolding, the berth has a low height

Sofa folding mechanism "Conrad" ("Telescope")

The principle of the mechanism: "Konrad" has three sections. To unfold the sofa, pull the lower part of the sofa from the front, and the sections roll out one after the other. Because of this feature, the mechanism was nicknamed "Telescope". The sections roll out and stand on supports.

"Conrad" is a subspecies roll-out sofa... The main difference is the large height of the berth.

Advantages: reliable mechanism is suitable for daily use, sofas have a compact volume, are equipped with a box for linen, comfortable for sleeping

Disadvantages: the mechanism and the sofa are heavy

Dolphin sofa transformation mechanism

The principle of the mechanism: To unfold the sofa, pull on the front of the sofa from below. As a result, a section hidden inside the sofa body will roll out onto you. Inside the draw-out section there is a cushion with a strap. You need to grasp the strap and pull the pillow up. She will "emerge" and stand on one level with the sofa seat cushion. Voila, the sleeping place is ready.

The Dolphin mechanism is mainly used in the construction of corner sofas. The storage space for the bed is not located in the roll-out part of the corner sofa. The mechanism exerts a significant load on the body of the sofa, so when buying, pay attention to the material of the body. No knots allowed if wood is used.

Dignity: ease of unfolding, optimal bed height.

disadvantages: not durable.

The mechanism of transformation of the sofa "Elf"

The principle of the mechanism: The mechanism is easy to unfold. The armrests are pulled apart on the sides and a berth is formed.

"Elf" refers to metal-frame mechanisms. The frame is made of profiled metal pipes. Lamellas made of wood. The armrests are height adjustable and have several positions. This feature allows you to create the most comfortable position of the armrests for a reclining position.

Advantages: a compact model of sofas, a good flat berth, the slats give a good orthopedic effect, the armrests are adjustable - you can create a sofa for yourself.

Disadvantages: you cannot put the sofa close to the wall, the sleeping place is in the same place as the sitting place.

The mechanism of transformation of the sofa "Recliner"

"Recliner" got its name from english word recline - recline or recline back

The principle of the mechanism: The transformation of the sofa is controlled using complex mechanisms hidden in the sofa body. With their help, you can adjust the inclination of the back of the sofa and extend the footrest to a predetermined distance and at a specific angle.

Some models have vibration massagers built into the sofa cushions. Particularly advanced sofas have built-in electric motors that control the transformation of the sofa using a remote control.

There are models with "memory" capable of adjusting and remembering the settings of the mechanism made directly for your body.

Advantages: very easy to operate, have fine settings - you can create a sofa for yourself.

Disadvantages: high price, they are used only as a place to rest as there is no place to sleep

General conclusions

• Pay close attention to the mechanism when buying a sofa; choosing the right mechanism will determine the comfort of use and the lifespan of the sofa.
• Match your needs with its capabilities. How often will you unfold the sofa, what space you have allocated for installing the sofa, especially when unfolded.
• Do not take a sofa with a deliberately inappropriate mechanism just because the color is cool or because the neighbors have it. Choose individually for your needs.

Mechanisms for transforming sofas - video review

For greater clarity, I want to offer also a video plot in which the mechanisms of sofas are described. True, they have already been discussed above. But, as taught at school - "Repetition is the mother of learning)))", and this video will facilitate and consolidate your understanding of the topic.

Now you know everything you need to make an informed choice about the mechanisms for transforming sofas. Hope it was helpful.