Buying a sofa is a very responsible process, because such furniture is bought for more than one year. The choice must be approached with special care so that the new sofa is comfortable for all family members, harmonizes well with the interior and pleases with its functionality for a long time.
First of all, a sofa is a comfortable relaxation area after working day, a place for friendly gatherings and watching movies. It is often used as a place to sleep. When purchasing, we usually pay attention to the appearance, but it will be much more important to ensure the quality of the material and check the folding mechanisms of the sofas.
Before you go hiking furniture stores When looking for a sofa, answer the following questions:
- How much space do you intend to allocate for the sofa when folded and unfolded?
- How often are you going to unfold the sofa?
- In what mode will the sofa bed function: daily or as a guest option?
- What loads should the sofa withstand?
- Do you need a special place to store laundry?
- How much are you willing to spend on the purchase? Which model should you pay attention to: budget option or a sofa with a more complex mechanism and reliable parts?
Types of mechanisms, pros and cons
Types of sofas by folding mechanism:
- retractable, or roll-out (on casters): roll-out, dolphin, eurobook, conrad, pantograph;
- folding: tango, book, elf;
- unfoldable: accordion, French folding bed, American folding bed, Spartak.
Let's take a closer look at each of the options.
Book
Having such a mechanism for transforming sofas, a piece of furniture is transformed into 2 positions: a sitting option and a sofa for sleeping. To turn the sofa into a sleeping place, its back is simply folded back. You will not have to move it away from the wall during this process, since during installation you will need to take into account that the design of the furniture requires a small gap between the wall and the back.
Parts of a sofa with a book mechanism consist of two metal or wooden frame with fixed or other soft filler. Below is most often a compartment for storing linen.
Pros:
- strength;
- reliability;
- ease of use;
- can be used frequently without the risk of breakage and wear.
- has only two positions - lying and sitting;
- inability to move the sofa tightly against the wall.
Tango
"Tango" is a prototype of a sofa folding system called "click-clack". Many manufacturers simply strive to surprise the buyer with a new beautiful term. In general, this system is very much reminiscent of a classic “book”. There is only one difference - when unfolded, such a sofa can also take intermediate positions, and not just “sitting and lying down”. The backrest can be set at a comfortable level. These sofas are equipped with a bed storage box. 
- backrest fixation in several positions;
- compact size;
- When unfolded, the sofa creates a surface without bumps.
The downside is that you can’t place the back tightly against the wall.
Eurobook
This folding mechanism for classic sofas, such as the “Eurobook”, is easily identified by the seat moving forward on roll-out casters. This creates a niche into which part of the sofa, which previously served as a backrest, is placed. 
- ease of converting a sofa into a sleeping place;
- reliability of the mechanism;
- plenty of space to sleep;
- large niches for storing things.
Minus —
Due to overly large seats, short people and children will not feel comfortable on the sofa, because they will not be able to lean on the back.
Dolphin
This is the most popular mechanism for transforming corner sofas. To unfold it, you need to pull the hinges attached to the section under the seat. The movement should be upward and towards yourself. The section will roll out and stand next to the seat, forming a large sleeping area. The linen box is located in the non-roll-out part of the seat. 
Note: The dolphin mechanism puts a lot of stress on the body of the sofa, so you need to make sure that it is made of high-quality wood.
- comfortable sleeping place;
- simplicity and ease of folding.
Disadvantage: not very long service life active use mechanism.
Pantograph
These types of sofa foldings can often be found under the name “puma” or “tick-tock”. This system arose as a version of the “Eurobook”, only without roll-out rollers. There is a spacious bed box inside.
To transform this sofa, you need to pull up the sofa seat by grabbing the edge in the middle. With this movement you will activate a mechanism that pushes the seat up and forward and opens the support legs. Place the back cushion in the resulting niche. 
- comfortable place to sleep;
- easy folding mechanism;
- does not damage the floor covering with rollers.
Cons:
- the mechanism is expensive;
- very wide seat.
The sleeping surface of such a sofa is represented by three sections. To straighten them into a plane, you just need to pull the edge of the seat. For frequent use as a bed, such furniture is not recommended, since these types of sofa folding mechanisms wear out very quickly. 
Tip: To unfold, you need to make sure there is a fairly large space.
Plus - when assembled, this sofa is very compact.
Cons:
- the sleeping surface is uneven;
- short service life.
Roll-out sofa
Sleeping place has two segments that are hidden in the body of the sofa. To unfold, you need to pull the bottom part so that it rolls forward. After this, the pillow reclines into the freed space. 
- very durable and reliable mechanism;
- comfortable place to sleep;
- compact dimensions when assembled.
Cons:
- roll-out rollers can scratch the floor covering when unfolding;
- low berth.
Accordion
“Accordion” got its name for some similarity with the musical instrument of the same name. The sleeping space of the sofa stretches in a unique way, moving forward when unfolded, and then rests on the extended mobile legs. When folded, such a sofa has compact dimensions, but for transformation it will require more free space. The storage compartment is located in the rear back of the sofa. 
- reliable and stable mechanism;
- long service life of the sofa;
- ease of transformation.
Cons:
- no built-in space for linen;
- the draw-out type of mechanism can cause scratches on the floor covering.
Spartacus
To transform such a sofa into a comfortable place to sleep, you need to pull the seat so that it unfolds in three steps and stands on the extendable legs. This type of sofa folding was jointly developed by Russian and Italian craftsmen. This type of furniture is very suitable for sleeping. The design of the mechanism provides a long berth. Essentially, this is a more durable French clamshell, complemented by a welded metal grille. 
- strength and durability of the mechanism;
- ease of use;
- can be used often as a bed;
- comfortable sleeping place.
Cons:
- no bed storage space;
- Before you unfold the sofa, you need to remove it.
Note: There is also a mechanism for laying out Ifagrid sofas, which is similar to Spartak, but also has some differences.
Conrad or Telescope
To unfold such a sofa, you need to pull its lower part. The sections will roll out one after another, like a telescope, and stand on supports. 
This type of furniture differs from classic roll-out sofas by its large sleeping height. 
- reliable mechanism;
- can be used daily;
- compact volume;
- there is a drawer for linen;
- sleep comfortably.
The downside is that the sofa is very heavy due to the massive mechanism.
Sedaflex (American folding bed)
This sofa folds out like a French folding bed, but unlike it, it has not a three-fold, but a two-fold system and a thicker mattress. 
- very durable mechanism;
- compact;
- has high quality.
Cons:
- no drawer for things.
Elf
This is a sofa with a swivel transformation mechanism. When the bed is transformed, the armrests are moved to the sides, creating a comfortable place to sleep. The armrests in this sofa can be adjusted in height and have several positions. 
- compact model;
- comfortable sleeping place;
- due to the use of lamellas, an orthopedic effect is obtained;
- The armrests can be adjusted to suit individual needs.
Cons:
- the sofa cannot be leaned close to the wall;
- the sleeping area is located in the same place as the seating area.
The name of this type of mechanism comes from the English “recline” - lean back. The transformation occurs thanks to complex mechanisms hidden in the depths of the sofa. With their help, you can adjust the backrest tilt and extend the footrest to the desired position. Some models also have special pillows with vibration massage. The most expensive models equipped with an electric motor controlled by a remote control.
Pros:
- ease of use;
- you can customize the sofa to suit your body's needs;
- comfort in any position.
- very high cost;
- You can only sit, because there is no sleeping position.
Sofa with fold-out floor
The sleeping area has two sections. When folded, they hide inside the sofa body. To transform such a sofa, you need to pull up the inner edge of the seat. Then make a gentle jerk forward and towards yourself. The sleeping place does not provide any supports and is laid out directly on the floor.
- small dimensions when folded;
- most cheap look folding sofas.
- not a very comfortable sleeping place;
- There is no area for storing bedding.
What to choose?
As a result, we can determine which of the sofa folding mechanisms became the best in its category:
- Eurobook is the most reliable mechanism;
- tango is the most comfortable for sitting;
- dolphin - the most spacious;
- pantograph, accordion and roll-out are the most comfortable for sleeping;
- tango, eurobook and roll-out - have special compartments for storage;
- roll-out and elf are the most compact;
- the book is the most affordable.
When purchasing any sofa, be sure to inspect its folding mechanism, consult the seller about this, ask questions and demand answers to them. The service life of the sofa and the ease of use greatly depend on the correct mechanism. If the sofa will rarely be folded out, then you should pay attention to compact models, but not intended for frequent transformation.
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Choosing among the many types of sofa transformations, you need to consider whether you will lay out the sleeping place every day, or only occasionally, when guests come to the house.
Book (“click-clack”)
Mechanism: to unfold the sofa, lift the seat and pull it towards you. It is reliable, time-tested.
- Three backrest positions: sitting, lying down, “relax” (intermediate position with a semi-reclining backrest).
- Compactness. Doesn't require much space to unfold.
- As a rule, it is possible to provide a linen drawer.
- The sleeping area is flat, without “kinks”.
Eurobook
Mechanism: The seat moves forward, after which the back of the sofa lowers. In fact, it’s difficult to call such mechanisms even: the seat moves out by sliding along the guides, the backrest lowers manually.
- Durability: simplicity sofa folding mechanism eliminates breakdowns.
- Large selection of standard sizes.
- Large linen drawer due to the absence of internal parts of the mechanism.
- Smooth sleeping surface.
Eurobook "Tic-Tac"
Movement: among others types of sofa transformations this one is particularly gentle on the floor covering: the wheels do not move on the floor, the seat moves along a trajectory reminiscent of a semicircle.
- Scratches on parquet, linoleum and other floor coverings are excluded.
- Doesn't require much space for layout.
Accordion
Mechanism: this “musical” name was given for its similarity with the principle of stretching the bellows of this musical instrument. The seat rises until it clicks, and then extends all the way.
- Minimum size when assembled.
- Large sleeping area.
- Reliability of the mechanism.
Roll-out
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 layout mechanisms This one is the most reliable.
- Takes up little space when folded
- Large sleeping area with small folded structure.
Cot
Includes the following types of sofa transformation: American and French. They have some differences, but are similar in that the assembled sleeping area is located under the seat.
French view
Mechanism: the seat must be pulled towards you and then up, after which the folded sofa must be “unfolded”. Before doing this, you need to remove the pillows.
- When folded, it takes up little space.
- When unfolded, it has a fairly large sleeping area.
American look ("sedaflex")
Mechanism: unfolds similarly to the French mechanism, but there is no need to remove the headrest; it will move to the desired position on its own.
- A 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. You need to pull the strap attached to the seat and pull it out completely.
- The most durable of all types of sofa transformations. Suitable for everyday use.
- The sleeping area is large and level.
- Easily unfolds and folds.
Conrad
Of all types of sofa transformations 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, carrying the seat with it, and then part of the backrest, after which the first part rises up to the same level as the seat, and part of the backrest falls to the same level.
- A sleeping place close in quality to an orthopedic mattress.
- Significant space saving when folded with a relatively large sleeping area.
Recently, a high-rollout sofa has become one of the most popular models of folding sofas. The essence of the Conrad mechanism is as follows. The sofa consists of three parts:
- The back of the sofa when folded is the part where the head is located when unfolded;
- The middle part of the folded sofa is placed under the saddle cushions.
- The part where the legs are located is a wooden frame structure that extends from under the bottom of the sofa.
Folding principle
To unfold a high-rollout sofa, you need to pull the wooden structure, and she, in turn, will pull the rest of the sofa with her using a system of brackets and rollers. Conrad mechanism intuitive and does not cause difficulties even for children and fragile women.
Advantages of a high-rollout sofa
Sofas with the Conrad mechanism are very simple and easy to use. When folded, such a sofa will take up very little space, while when unfolded it provides a cozy and large sleeping area for one or two. This option for a sleeping sofa bed is good if you have small area apartments, and you want to use the space as efficiently as possible. We usually advise those buyers who plan to straighten it out every day to take a closer look at sofas with such a transformation mechanism. When unfolding the sofa no dents or scratches left on the floor, and this is a big plus if you have parquet, laminate or expensive carpet in your apartment.
Most often, the Conrad mechanism is used in corner sofas with a berth. It is worth noting that the sleeping place in the high-rollout sofa is located quite high above the floor level. IN different models height varies from 42 to 45 centimeters.
Your safety is our priority
In the manufacture of all models of sofas with this mechanism, our company uses exclusively environmentally friendly materials. clean materials: quality wood, plastic and fabric. You can be confident in the reliability of the mechanisms and the strength of the structures, because each model with a Conrad mechanism undergoes tests for safety of use.
In the catalogs of our company you can choose a high-rollout sofa that will satisfy all your requirements and wishes. If you have any questions, do not hesitate to ask our competent and polite specialists: they will always advise you on the operation of sofa mechanisms and help you choose a high-rollout sofa to suit your interior.
Sofa KONRAD traditional design with built-in full-size bed. Created in various options leather and fabric. The photo shows fabric from the Jute catalog in orange-brown color (09) with a drawstring and the possibility of finishing with decorative stitching with a contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control.
Sofa KONRAD in fabric
Height: 1020 mm Width: 2110 mm Depth: 1160 mm
Sofa KONRAD traditional design with built-in full-size bed, with side panel Design No. 3 with coffee table.
Sofa KONRAD, leather
Height: 1020 mm Width: 2110 mm Depth: 1160 mm
KONRAD sofa in traditional design with built-in full-size bed. Available in a variety of leather and fabric options. The photo shows leather from the Mirror Gray catalog gray(69) with drawstring and the possibility of finishing with decorative stitching with contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control.
KONRAD sofa of traditional design with a built-in full-size bed and a seating module (ottoman). Available in a variety of leather and fabric options. The photo shows fabric from the Pixel catalog in gray color (51) with a drawstring and the possibility of finishing with decorative stitching with a contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control.
Sofa KONRAD with ottoman, in fabric
Height: 1020 mm Width: 2910 mm Depth: 1780 mm
KONRAD sofa of traditional design with a built-in full-size bed and a seating module (ottoman), with a side panel Design No. 3 with a coffee table.
Height: 1020 mm Width: 2910 mm Depth: 1780 mm
KONRAD sofa of traditional design with a built-in full-size bed and a seating module (ottoman). Available in a variety of leather and fabric options. The photo shows leather from the Matrix Ghiaccio catalog in milky color (70) with tightening and the possibility of finishing with decorative stitching with contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control.
Corner sofa KONRAD, fabric
Corner sofa KONRAD traditional design with a built-in full-size bed and a spacious storage box. Available in a variety of leather and fabric options. The photo shows fabric from the Grand Canyon catalog in graphite color (06) with a drawstring and the possibility of finishing with decorative stitching with a contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control.
Corner sofa KONRAD, leather
Height: 1020 mm Width: 3110 mm Depth: 2220 mm
Corner sofa KONRAD traditional design with a built-in full-size bed and a spacious storage box. Available in a variety of leather and fabric options. The photo shows leather from the ERCULES CAPPUCCINO catalog in dark beige color (11) with tightening and the possibility of finishing with decorative stitching with contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control.
Corner sofa KONRAD, leather
Height: 1020 mm Width: 3110 mm Depth: 2220 mm
Corner sofa KONRAD of traditional design with a built-in full-size bed and a spacious storage box, with a side panel Design No. 3 with a coffee table.
Sofa lounge KONRAD in leather
The KONRAD lounge sofa is of traditional design with a built-in full-size bed, a spacious storage box and a seating module (ottoman). Available in a variety of leather and fabric options. The photo shows leather from the Splendor Cappuccino catalog in sandy brown color (30) with tightening and the possibility of finishing with decorative stitching with contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control.
Sofa lounge KONRAD in leather
Height: 1020 mm Width: 3920 mm Depth: 2220 mm
Sofa lounge KONRAD of traditional design with a built-in full-size bed, a spacious storage box and a seating module (ottoman), with a side panel Design No. 3 with a coffee table
Armchair KONRAD in fabric
KONRAD armchair in traditional design with spacious storage box. Available in a variety of leather and fabric options. The photo shows fabric from the Chinchilla catalog in ash color (02) with a drawstring and the possibility of finishing with decorative stitching with a contrasting thread.
Armchair KONRAD in leather
Height: 1020 mm Width: 1220 mm Depth: 1180 mm
KONRAD armchair in traditional design with spacious storage box. Available in a variety of leather and fabric options. The photo shows leather from the Splendor Nocciola catalog in dark brown color (25) with tightening and the possibility of finishing with decorative stitching with contrasting thread.
Armchair KONRAD in leather
Height: 1020 mm Width: 1220 mm Depth: 1180 mm
KONRAD armchair of traditional design with a spacious storage box and side panel Design No. 3 with a coffee table.
Recliner chair KONRAD in fabric
Height: 1000 mm Width: 1050 mm Depth: 1040 mm
KONRAD chair of traditional design on a rotation support, with a mechanical recliner. Available in a variety of leather and fabric options. The photo shows fabric from the ARPATEK catalog in light brown color (06) with a drawstring and the possibility of finishing with decorative stitching with a contrasting thread.
Sofa KONRAD straight, leather
Height: 1020 mm Width: 2110 mm Depth: 1160 mm
KONRAD sofa in traditional design with built-in full-size bed. Available in a variety of leather and fabric options. The photo shows leather from the Splendor Cappuccino catalog in sandy brown color (30) with tightening and the possibility of finishing with decorative stitching with contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control. The model is created with different designs sidewalls and many built-in options to suit your taste.
Sofa KONRAD with ottoman, leather
Height: 1020 mm Width: 2910 mm Depth: 1780 mm
KONRAD sofa of traditional design with a built-in full-size bed and a seating module (ottoman). Available in a variety of leather and fabric options. The photo shows leather from the Splendor Grigio catalog in dark gray color (23) with tightening and the possibility of finishing with decorative stitching with contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control. The model is created with different sidewall designs and many built-in options to suit your taste.
Corner sofa KONRAD, in fabric
Height: 1020 mm Width: 3110 mm Depth: 2220 mm
Corner sofa KONRAD traditional design with a built-in full-size bed and a spacious storage box. Available in a variety of leather and fabric options. The photo shows fabric from the Mulberry catalog in eggplant color (17) with a drawstring and the possibility of finishing with decorative stitching with a contrasting thread. The sofa can be equipped with an electric mechanism for transforming the berth, controlled from a remote control. The model is created with different sidewall designs and many built-in options to suit your taste.
Depth: 1180 mmKONRAD armchair in traditional design with spacious storage box. Available in a variety of leather and fabric options. The photo shows fabric from the AURA catalog in gray color (15) with a drawstring and the possibility of finishing with decorative stitching with a contrasting thread. The model is created with different sidewall designs and many built-in options to suit your taste.
Dear customers! This article is for informational purposes only. We will introduce you to the most common transformation mechanisms, designed for daily use, which are used by the Alina Mebel factory in production upholstered furniture.
To date mechanisms for transforming sofas and armchairs very diverse. In order to choose the most comfortable sofa for yourself, you need to know what they are mechanisms for transforming upholstered furniture. Often when choosing upholstered furniture, more attention is paid to cost, design and other external factors, forgetting that the main selection criterion should be transformation mechanisms, on the basis of which it is manufactured upholstered furniture. The service life of folding transformation mechanisms depends on the simplicity of the design, the materials from which the mechanism itself is made, as well as on the duration of use and compliance with operating rules.
Transformation mechanism "Book"- the oldest mechanism on the furniture market. Traditionally considered one of the simplest and most reliable, well-known and time-tested mechanisms. The good old transformation mechanism “Book” is a classic mechanism. This mechanism is used only in straight sofas and owes its popularity to its low cost. Sofas with a book mechanism are the cheapest and most unpretentious. At its core, the mechanism itself is a small set of iron plates that are installed on both sides of the sofa and connect the seat and backrest block. The blocks themselves can be with different soft fillers: polyurethane foam, block independent springs or Bonnel spring block. A big advantage is the ease of replacing the mechanism if it breaks.
Modern design, clear lines, rectilinear shapes and a minimum of details allow these models to remain the most popular for many years. These sofas fit harmoniously into both office interiors and home environments. To transform a sofa into a bed, it is enough to lift the seat up until a characteristic click is heard, while the backrest leans back, then lower the seat down - the sofa is unfolded.
Note the compactness; high berth; in most cases - the presence of drawers for linen; efficiency - the most affordable mechanism. But! When arranging furniture in the room, be sure to take into account the distance behind the back of the sofa-book, which is necessary for transforming the sofa, since when transforming the sofa, you need to move it a little (10-15cm) away from the wall. Some effort is required to fold the sofa into a bed.
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This mechanism is simple and reliable, but it is not recommended to place it close to the wall. Flooring it is not involved in the unfolding process, so you can use fluffy carpets and expensive parquet floors: they will not be damaged. You can easily transform a sofa with such a mechanism into a bed every day.
EUROBOOK
Eurobook can be considered one of the most durable and durable transformation mechanisms; there is simply nothing to break in it, because it does not have a mechanism as such. The hardwood guides ensure that the rolling casters move easily and are stress-free, increasing the longevity of your sofa. Unlike a “book,” a sofa with this mechanism does not need to be moved away from the wall. Just roll the seat forward and lower the backrest and in front of you is a full-fledged double bed.
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The two halves of the sofa, which make up the sleeping area, can have different soft fillings: polyurethane foam, a block of independent springs or a Bonnell spring block. The design assumes the presence of a large box for storing bedding. Eurobook sofas can have armrests of different shapes and a small backrest. But there are models of Eurobooks without armrests, the absence of which increases the size of the bed and at the same time saves space in the apartment.
Uniqueness sofa with Eurobook mechanism is that it can be placed anywhere in the room, even in the center, because from the back the sofa looks very aesthetically pleasing.
WITHDRAWOUT
It is considered one of the most durable mechanisms. Sofas with a roll-out transformation system are very easy to unfold, and the transformation of this type of sofa is one of the most reliable and very suitable for furniture for daily use. Roll-out mechanism transformation is compact when folded and has a spacious sleeping area when unfolded. It folds forward.
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Roll-out transformation mechanism consists of three parts. When packaged, the front part of the mechanism is located in the back of the sofa, and slides out into the place of the head during transformation. The middle part of the packaged mechanism is located under the saddle pads. The very first part of the mechanism, on which your feet rest after transformation, is a wooden frame structure and is packaged in outside middle part. The mechanism is driven by the extension of just this front part, which pulls the other two parts with it using a system of rollers and brackets.
Roll-out transformation mechanism convenient and easy to use - just pull the hidden strap of the seat and pull out the sofa until it is completely unfolded - when transformed into a bed, the front part pulls the rest along with it. In the middle part of the sofa there is a drawer for bedding. The pillow that served as a seat is thrown onto the middle part of the sofa - onto the linen drawer. The roll-out transformation mechanism creates a fairly large sleeping place, and at the same time, a sofa with such a mechanism when folded is quite compact, since 2/3 of the “sleeping place” is in the seat and 1/3 in the back. When unfolded, it has no kinks or “hollows.” Roll-out sofas are folded by performing the steps in the reverse order.
The internal filling of the berth is usually polyurethane foam and, less often, springs. Reliability among transformation mechanisms was noted; compactness when folded and a large, flat sleeping area when unfolded. Easy to use. But! The height of the berth is slightly lower than usual. The specificity of this mechanism is that it is not possible to make the sleeping place the usual high one.
DOLPHIN
Transformation mechanism "Dolphin" used mainly for corner sofas and less often for straight ones. The Dolphin mechanism allows you to turn any sofa into a large double bed and a flat, spacious sleeping area. This transformation mechanism is designed for daily use. The advantage of this mechanism is that when transforming from the “sofa” position to the “bed” position, a minimum additional area premises.
The mechanism is so named because its unfolding trajectory is similar to a dolphin's leap. This mechanism is used in almost all corner sofas, and allows you to create a high, level sleeping place, part of which is also corner element sofa One part of the Dolphin sleeper is the seat. The second part is under the seat.
Sofa with transformation mechanism "Dolphin" unfolds by pulling out the lower block. All you need to do is roll out the lower part of the sofa, and by pulling the auxiliary strap, “get out” the rest of the sofa, which turns into a comfortable and roomy bed. Sofas with the Dolphin mechanism are folded by performing the steps in the reverse order.
A feature of these mechanisms is the smaller thickness of the polyurethane foam on the additional pillow when forming the berth and the participation of sofa seats in the berth. The parts of the sofa themselves can have different soft fillings: polyurethane foam, a block of independent springs or a Bonnel spring block. A big advantage is the ease of replacing the mechanism if it breaks. Corner sofa beds with a dolphin-type transformation mechanism usually have a large drawer for storing bedding, located inside the side sofa.
Dolphin mechanisms are very reliable- made of steel, with guides made of hardwood. This design allows the mechanism to easily withstand heavy loads. This is a very reliable and simple mechanism that will be easy to unfold even for a child. It can withstand heavy loads and is well suited for constant daily use. The sleeping area of the sofa is high, level and spacious.
KANGAROO
Kangaroo mechanisms are very reliable- made of steel and equipped with rubber-coated wheels, which help when unfolding the bed, as well as guides made of hardwood. The reliability and simplicity of the design of the metal transformation mechanism of this type allows extra effort turn regular sofa into the sofa bed. The mechanism is named so because the trajectory of its unfolding is similar to the jump of a kangaroo. Transformation of furniture with the Kangaroo mechanism is carried out by lifting the seat of the sofa bed up and towards you. Sofas with this mechanism can be placed on any floor surface, since when extended, the seat does not “ride” along the floor, but rises up.
The peculiarity of these mechanisms is the smaller thickness of the foam rubber on the additional pillow when forming a berth and the participation of sofa seats in the berth. The parts of the sofa themselves can have different soft fillings: polyurethane foam, a block of independent springs or a Bonnel spring block. One part of the Kangaroo bed is the seat. The second is contained under the seat. Sofas with a Kangaroo mechanism are folded by performing the steps in the reverse order.
used in almost all corner sofas, and allows you to create a high, level sleeping area, part of which is the corner element. A big advantage is the ease of replacing the mechanism if it breaks. Corner sofa beds with a Kangaroo-type transformation mechanism usually have a large drawer for storing bedding, located in the attached corner part of the sofa.
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The advantage of these mechanisms is that when transforming from the “sofa” position to the “bed” position, no minimum additional space is required. This is a very reliable and simple mechanism that will be easy to unfold even for a child. It can withstand heavy loads and is well suited for constant use. The sleeping area is flat, high and spacious.
METAL FRAME HIGH-ROLL-OUT CONRAD
When folded Conrad mechanism compactly packed into the body of the sofa: its front part is located in the back and extends to the place of the head during transformation. The middle part of the packaged mechanism is located under the saddle pads. The third part of the mechanism (front), on which your feet rest after transformation, is a wooden frame structure and, when packaged, is located on the bottom of the sofa. The mechanism is activated by pulling out parts of the mechanism. During transformation, the frame part is pulled out first to the level of the legs and pulls along the remaining segments of the mechanism, which move forward one by one on special rollers with brackets. The second (soft) segment occupies the middle position. After this, the first soft element on the bracket rises to the level of the second and is securely fixed with clamps.
Transformation mechanism of the high-drawout "Conrad" can be equipped with various soft fillers: polyurethane foam, a block of independent springs or a Bonnell spring block. Thanks to complex system retractable mechanisms, it is possible to create a fairly large and wide sleeping place, characterized by a perfectly flat surface, kinks, “depressions” and height at the level of the sofa when folded. At the same time, a sofa with such a mechanism when folded is quite compact and takes up minimal space in the apartment, which allows you to save money. usable area. There is no need to remove soft pillows from their seats.
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Mechanism "Conrad" It is also equipped with a spacious drawer for bedding (only in some manufacturers - in the back of the sofas). Hardwood rails make it easy to unfold the sofa. Sofas with Conrad mechanism are designed for daily use, they are so durable and reliable mechanism designed.
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Among the shortcomings, only one thing should be noted - a sofa with such a mechanism is quite heavy. Conrad transformation mechanisms are not produced in Russia - this is an imported equipment that undergoes thorough testing at manufacturing plants, and requires experienced installers for installation.
METAL FRAME ELF
- a compact mechanism, the device of which folds out into a single or double bed position of 190/200 cm in length. The mechanism includes two sections: a backrest and a place for sitting or sleeping. The Elf mechanism is very easy to use, as it only requires bending the armrests to the floor so that they are parallel to it. The armrests are hinged. The ability to change the position of the armrests will help you feel more comfortable while relaxing.
"Elf"- this is a “classic” mechanism consisting of a frame made of metal profile pipe 30*30 or 30*20, with movable three/five position armrests that are fixed in any of the provided positions. Changing the positions of the armrests will make you feel more comfortable. The orthopedic brass lattice best distributes body weight during sleep. The mechanism can be additionally equipped with: a backrest and a “Moth” fastening lock. The design of this mechanism allows for the use of removable covers and a large drawer for bedding. The mechanism can be installed both on the linen box and on the legs.
Transformation mechanism "Elf" is one of the most common in the production of children's and youth upholstered furniture. It is very convenient for narrow or children's rooms, since with a width of 90 cm its length is 210 cm, that is, it is suitable for both children and adults. Furniture with the Elf transformation mechanism fits into any doorway, which is also important. This model is ideal for use in small apartments Oh. The Elf transformation mechanism is very reliable and convenient for everyday use. It will allow you to create upholstered furniture for any modern interior.
METAL FRAME TANGO
Upholstered furniture of metal frame group united by the presence of an orthopedic metal frame, removable mattress and cover. The sleeping area of these models is seamless, the base of which is an orthopedic system of bent-glued battens made of birch plywood - Latoflex, located on a metal frame. Important factors are ease of care, the ability to have not one cover, but several - “winter” and “summer”, if damaged, the possibility of ordering a cover rather than buying new furniture, replacing the mattress, in models with "Tango" mechanism high reliability and durability.
(it is also called “Click-Klyak”) - a new improved version of the “book” mechanism made on a metal frame. Two frames from metal profile connected to each other by a lock that allows you to fix the sofa in three positions: lying, sitting and relaxing. The orthopedic brass lattice best distributes body weight during sleep. Some models also have raster three- or four-position armrests, each of which can take one of the positions. Sofas and armchairs of this type have 3 folding levels: sitting, lying down and an intermediate resting position - “relax”. Changing the positions of the armrests will make you feel more comfortable. The result is 7 transformation options.
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Transformation of furniture with the Tango mechanism carried out by lifting the seat of the sofa bed “up” and “toward yourself”. The name is associated with the pendulum motion of the decomposition mechanism. The sofa seems to step forward, like the pendulum of a tick clock, and folds back like that. The design of the Tango transformation mechanism allows you to install a linen box for bedding. To transform a sofa into a sleeping place with a lightweight structure, the sofa must be moved 10-15 cm away from the wall, as is the case with a book sofa.
Sofas with this mechanism can be placed on any floor surface, since when extended, the seat does not “ride” along the floor, as with the “Eurobook” mechanism, but rises “up”. The mechanism uses springs and a synchronizing rod, which facilitate the expansion and prevent the seat from warping. When the sofa is unfolded, a flat sleeping area is formed without any changes.
Transformation mechanism "Tango" is one of the most common in the production of children's and youth upholstered furniture; it is suitable for both children and adults. The Tango transformation mechanism is very reliable and designed for everyday use - simple and easy to use. It will allow you to create upholstered furniture for any modern interior.
ACCORDION
Transformation mechanism "Accordion" simple but very reliable and also convenient for everyday use. The mechanism unfolds easily according to the accordion principle. With one movement of the hand forward, the sofa turns into comfortable bed. Sofas with the Accordion transformation mechanism fold out very simply and quickly.
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Sofas with the Accordion mechanism must be equipped with armrests of various modifications and a thin back. The advantage of the Accordion mechanism is that when moving the mechanism to the “bed” position, it is not necessary to move the sofa away from the wall. But! the need for sufficient space for transformation.
When disassembled, the berth does not decrease in height and consists of three main parts (a seat and two parts of the backrest). The sleeping place turns out to be level and high. The width of the berth varies from 60 to 160 cm. The length of the berth is usually standard and is 190/200 cm. When assembled, the sofa occupies a minimal area. The sleeping area is level and high. A spacious linen box for bedding, located under the seat, makes the sofa functional.
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It is recommended to regularly lubricate the joints of the springs with the frame with graphite lubricant or technical oil, since during operation of the mechanism, creaking may occur, which is not a defect. During operation, the optimal load on the mechanism is considered to be 120 kilograms. Due to the fact that sofas with the Accordion transformation mechanism have a high, wide and flat sleeping area, they are perfect for a night's rest.
METAL FRAME ACCORDION
Upholstered furniture of the metal frame group is united by the presence of an orthopedic metal frame, removable mattress and cover. Metal frame mechanism "Accordion" compact, which allows you to purchase it for small apartments, but when folded out it turns into a comfortable full-sized bed with a sleeping space up to 155 cm wide!
The "Accordion" mechanism is made of sheet steel by cold stamping. The mechanism is based on frames made of 30x20 profile pipes, with orthopedic grilles installed on them, on top of which there is a frameless polyurethane foam mattress 10-12 cm high. The sleeping area of these models is flat and seamless. The basis is an orthopedic system of bent-laminated birch plywood armor - latoflex, with the help of which the maximum orthopedic effect is achieved. They are located on a frame of three frames made of metal square profiles and interconnected by hinge joints.
Mechanism "Accordion"- the extraordinary ease of unfolding the sofa is its main advantage. Modern models sofas based on Accordion transformation mechanisms are equipped with additional drawers for linen. The package may also include various pillows and a metal backrest, which enhances the effect of the bed when unfolding the sofa. The advantage of this mechanism is that when moving to the “bed” position, the mechanism does not need to be moved away from the wall if it is equipped with a metal backrest. If the sofa is not equipped with a metal back, then when transforming the accordion sofa into a sleeping place, it is necessary to leave a gap between the wall against which the sofa stands and the sofa itself. This will allow the smooth transformation of this transformation mechanism. The sleeping area is level and high. Make sure that the carpet does not interfere with the easy sliding of the sofa, otherwise you risk damaging the mechanism.
The unfolding movements of this mechanism are reminiscent of the movements of the accordion musical instrument of the same name. You need to raise the seat (until it clicks), and then the berth moves out on its own. With one movement, the sofa folds out into a bed position, and even a child will not have any difficulty getting ready for bed. Transformation mechanisms "Accordion" are designed for daily use. The width of the berth varies from 80 to 155 cm. The length of the berth is usually standard and is 200 cm. At the same time, when folded, the sofa takes up a minimum of space, which allows it not to disturb the geometry of the space of any room!
Transformation mechanism "Mixotual" / "French folding bed" widely used in the production of upholstered furniture. The mechanism is reliable and durable. "Mixotual" is one of the most famous representatives of the group of sofa transformation mechanisms. It is preferred by most foreign furniture manufacturers. Transformation mechanism "Mixotual" consists of three links folded into one another. The mechanism is being manufactured Russian companies and is intended for daily use.
"Mixotuals" / "French folding beds" have a wall thickness of the tubular frame of 1.5 mm (in imported analogues it is 0.8 mm). The mechanism is equipped with a durable polypropylene awning, making the surface smooth and flat, and elastic supporting elements - wooden battens (transverse strips) made of bent-glued birch plywood with a bending radius of 3 meters, a width of 60 mm and a thickness of 11 mm - in the amount of 4-6 battens - the so-called " guest version" French folding bed and 10-12 lats - reinforced for daily use Mixotual. Bed width: 700 / 800 / 900 / 1000 / 1200 / 1300 / 1400 / 1500 mm x 1900 mm.
The mechanism is supplied with a frameless polyurethane foam mattress ~ 40-50 mm thick in a calico or jacquard cover. In three-fold mechanisms, a mattress larger than 60 mm cannot be used, since a thicker mattress will not allow the mechanism to fold and will lead to its breakage. Transverse bent-glued elastic elements (plates) are made of birch and give the mechanism strength and elasticity. At the core - metal frame. The frame coating is a two-disperse powder dye that provides reliable protection of the metal from corrosion.
The design of the mechanism does not allow placing a linen box inside, and when unfolding the sofa, you must first remove/raise the seat cushions. But the orthopedic back will ensure the correct position of the back during rest, and the awning made of polypropylene fabric will not allow sagging. Despite the external lightness and delicacy of the design, the mechanisms are very durable. It is comfortable to sleep on such a folding bed. Attention! Do not put a thicker mattress, blanket or pillows inside the mechanism - this will lead to its breakage.
It is the sofas with the “folding bed” transformation mechanism that are the most fashionable in terms of design. The mechanism is equipped with a brass lattice, over which an awning made of high-strength fabric is stretched, which provides the structure with additional strength and elasticity. When unfolded, the bed becomes bedded with legs. If you follow the operating instructions and follow useful tips, then a sofa with a “Mixotual” / “French folding bed” mechanism will serve you for many years.
METAL FRAME SPARTAK
Transformation mechanism "Spartak"- this is design and technical solution Italian specialists. "Spartak" is a "new generation" mechanism and represents folding sofa, consisting of 3 frames interconnected by a kinematic diagram. Has solid foundation made of coarse mesh inserted into frames made of profile pipe 30*30. Comes with a frameless polyurethane foam mattress. This development of the mechanism is successfully and widely used in modern furniture production. This is the most popular model. It is distinguished from others by its versatility, mobility and comfort.
The mechanism ensures a comfortable position of the spine;
The installation method allows you to quickly install and dismantle the transformation mechanism;
Manufactured from metal welded mesh from steel rods with a diameter of 4 mm.
Versatility - Mobility - Comfort - Italian Technology - High Quality
The design of the mechanism does not allow placing a linen box inside. The principle of operation of the "Spartak" mechanism is similar to the "Mixotual" - when unfolding the sofa, you must first remove/raise the seat cushions, grab the frame of the mechanism in the middle, pull the seat towards you and slightly up, move the mechanism up and forward to the upper position, pull it out niches of the sofa, unfold vertically upward and “roll out”. Two sections folded one inside the other will straighten out and stand on automatically prepared strong support legs. The sleeping place is ready for use. Attention! Do not put a thicker mattress, blanket or pillows inside the mechanism - this will lead to its breakage. If you follow the operating rules and follow useful tips, then the sofa with the Spartak mechanism will serve you for many years.
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Useful tips for the Mixotual and Spartak mechanisms
If a squeak occurs, it is necessary to remove the mattress, lubricate all the rivets with any liquid technical oil, then fold and unfold the mechanism many times to allow the lubricant to penetrate into the rubbing parts, then remove excess oil. Lubricating the rubbing parts will not only eliminate squeaking, but will also extend the life of the mechanism by reducing the possible occurrence of play between the rivet and the rubbing part of the mechanism. It is enough to lubricate 1-2 times a year. Do not stack the mechanism with bedding. The mechanism can be folded only with a mattress no thicker than 60 mm, which is included in the kit , and also without a mattress - this can lead to breakage of the plastic attachments of the armor. Fold and unfold the mechanism in the center. If you fold from one of the edges, the load on the hinge-lever mechanisms is unevenly distributed and leads to increased wear. When folding the mechanism, carefully place the mechanism in the lower position without hitting it. The habit of throwing the mechanism into the sofa when folded for the last time will lead to breakage of the pipe, which limits the lower position of the mechanism when folded. Don't concentrate all your weight on one plastic lat holder. The design load on the lath holder is up to 60 kg. Do not allow children to use the cot as a sports ground. The low weight is more than compensated for by children's activity. Do not sit on the edge of the leg part of the unfolded mechanism, as a large lever is created and either the outer leg turns out, or the frame pipe comes out of engagement with the moving part - in both cases, the defect cannot be repaired.
We have presented to you the main types of mechanisms for transforming upholstered furniture. Due to the rapid development furniture production there are more and more of them. We hope that our article will help you make the right choice.
