Choosing a sofa , among other qualities and performance indicators, which you should pay attention to, not the last place is the type of mechanism for its unfolding. And in order to decide which arrangement of the sofa is better and suitable for this particular case, let's consider the most popular ones.
Types of folding mechanisms of sofas
So, depending on how often the sofa will be laid out, what is the area of the room where it will be installed and you should choose its model with this or that unfolding system. All the mechanisms of unfolding sofas by the method of transformation can be divided into three groups. To the first group (decomposing) is the simplest and most known mechanism - the "book" , when the seat rises to a characteristic sound, then falls - the sofa is decomposed. This option requires the use of some effort, with the daily unfolding of the mechanism quickly fails, and besides the sofas with such unfolding mechanisms can not be installed close to the wall.
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From the second group (unfolding) the most successful mechanism for unfolding sofas is the " accordion " . As you can see from the title, the sofa moves apart (unfolds) like an accordion (accordion). In this case, from a folded sofa of relatively small size, an even and spacious place for sleeping is formed. The only thing to consider when purchasing a sofa with such a mechanism that the transformation will require considerable space.
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The most simple in operation and reliable are the mechanisms from the last, the third, the group - advanced or roll-out. Here you can recommend, first of all, the mechanism for unfolding the sofa "eurobook" (the seat rolls out forward, the back bends and fits into the vacant seat - the sofa is laid out).
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To the same group is the mechanism of unfolding the sofa with a somewhat unusual name "dolphin" . This mechanism is due to the fact that the seat when folding the sofa maximally moves forward, and then fit to form a berth with a movement resembling a dolphin jump. It should be said that such a folding mechanism is most often used in corner sofas. In this case, a rather spacious sleeping place with a comfortable flat surface is formed.
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