Book (“click-clack”)
Mechanism: to unfold the sofa, lift the seat and pull it towards you. This is a reliable, time-tested mechanism for folding a sofa.
Pros
- Three backrest positions: sitting, lying, “relax” (intermediate position with a semi-reclined backrest).
- Compactness. Does not require much space to unfold.
- As a rule, it is possible to provide a linen box.
- The sleeping area is flat, without “bends”.
Eurobook
Mechanism: The seat moves forward, after which the back of the sofa falls. In fact, it is difficult to call such sofa folding mechanisms mechanisms: the seat slides out by sliding along the guides, the backrest lowers manually.
Pros
- Durability: the simplicity of the sofa folding mechanism eliminates breakdowns.
- A wide range of sizes.
- A large linen drawer due to the absence of internal parts of the mechanism.
- Flat sleeping surface.
Tick-Tock Eurobook
Mechanism: among other types of sofa transformation, this one is particularly gentle on the floor covering: the wheels do not move on the floor, the seat moves along a trajectory resembling a semicircle.
Pros
- Excludes scratches on parquet, linoleum and other floor coverings.
- Does not require much space for unfolding.
Accordion
Mechanism: this sofa folding mechanism received such a “musical” name for its similarity to the principle of stretching the bellows of this musical instrument. The seat is raised until it clicks, and then extends until it stops.
Pros
- Minimal size when folded.
- Large sleeping area.
- Reliability of the mechanism.
Roll-out
Mechanism: the seat pulls all the other parts along with it. To unfold the sofa, you need to pull the seat strap hidden at the bottom.
Pros
- Of all the sofa unfolding mechanisms, this one is the most reliable.
- It takes up little space when folded.
- Large sleeping area with a small folded structure.
Folding bed
Includes the following types of sofa transformation: American and French. They have some differences, but are similar in that the sleeping area in the assembled form is located under the seat.
French type
Mechanism: the seat must be pulled towards you and then upwards, after which the folded sofa must be “unfolded”. Before this, you need to remove the pillows.
Pros:
- When folded, it takes up little space.
- When unfolded, it has a fairly large sleeping area.
American type (“sedaflex”)
Mechanism: unfolds in the same way as the French mechanism, and you don’t need to remove the headrest, it will move to the desired position itself.
Pros
- A more durable mechanism than the French counterpart.
- There is no need to dismantle the structural elements.
Dolphin
Mechanism: the movement of the bed with this sofa folding mechanism resembles a dolphin dive. You need to pull the strap attached to the seat and pull it out completely.
Pros
- The most durable of all types of sofa transformation. Suitable for everyday unfolding.
- The sleeping area is large, flat.
- Easy to unfold and fold.
Konrad
Of all the types of sofa transformation, this option is the most comfortable for sleeping, as it allows you to use spring blocks in the design, which is most beneficial for health and creates comfortable conditions for sleeping.
Mechanism: the part located under the seat slides out and extends further, pulling the seat along with it, and then part of the back, after which the first part rises up to the same level as the seat, and part of the back lowers to the same level.
Pros
- A sleeping place close in quality to an orthopedic mattress.
- Significant space savings when folded with a relatively large sleeping place.
