French clamshell: the mechanism of transformation. Advantages and disadvantages

The French clamshell is a cozy and convenient option for small apartments, in which every centimeter in the daytime is important.

mechanism for transforming the sofa French clamshell

A short digression into the history

A French clamshell is a mechanism thatis very popular. However, five years ago the model was not on the preferred list of purchases, as it had a less reliable design, not designed for regular use.

The sofas were completed with woven mesh,then the producers replaced them with tents, which proved uncomfortable and short-lived (quickly sagged). Therefore, they were used extremely rarely, and because of their shortcomings acquired the reputation of a bed for "guest" use.

French clamshell gear

A few years later the producers releasedFrench clamshells with a more comfortable and sturdy bundle of four lat and tent. Two lathes installed in the central part of the mechanism have the main load, so they quickly lose their initial bend and are deformed, sag.

Frequency of use and design: the dependence of indicators

For daily use fit Frenchclamshells, consisting of ten lats and one tent. In this case, for each lat is much less load, so these models serve much longer, even with constant use. They can be used for serious loads (up to 180 kg). But they are also considered not very convenient: folding is significantly complicated due to the presence of ten lat.

Some manufacturers offer their own versionFrench clamshells for daily use, which consist of a welded net that can withstand a weight of up to 200 kg. However, these couches in shops are rare.

French clamshell: the principles of transformation

A French clamshell is a mechanism that canbe built not only in the sofa, but in the armchair, but the first option is the most common. But in either case the principle of transformation remains unchanged.

Straightens in several steps: removing pillows, removing the mattress, placed on a sturdy frame, and unfolding a sleeping place, folded in three layers.

French clamshell gear

Transformation of the "day" option into "sleeping"occurs literally in a minute thanks to a comfortable handle and an automatic supporting metal foot integrated in the mechanism. The French clamshell (the photos, placed just below, clearly demonstrate the principle of unfolding) can easily be succumbed to the transformation of even a fragile girl.

sofa mechanism French folding bed

First of all, it is necessary to remove all the pillows from the sofa, then the mechanism can be easily lifted by the convenient handle, which is located in the front part of the berth.

the mechanism of the French clamshell photo

Further, the two upper sections are deployed behind the support legs in two stages. The section located close to the back of the sofa is called the head and is supported by a special fixing bracket through the hinges.

the mechanism of the French clamshell photo

Behind the head section is the middle, then the foot, which are fixed on the supporting metal legs, having a U-shape.

the mechanism of the French clamshell photo

Due to the banners, the support legs are automatically folded out during the transformation of the mechanism, then, in a practically vertical position, are installed on the floor surface.

the mechanism of the French clamshell photo

It is possible to tilt the support legs towards the foot section, this position is considered the norm.

French cot

The most common clamshells includeits configuration is a thin enough mattress (its thickness is not more than 60 mm), which is made of sheet foam. After a thorough search or preliminary order, you can buy models with foam mattresses up to 75 mm thick, which are mounted on a base of welded wire mesh with very large cells.

The mattress of the French clamshell should ideally coincide in width with a skeleton, otherwise the sleeping place will be formed with great difficulty.

To increase the service life, the mechanism of transformation must be carefully protected: it is necessary to fold simultaneously with the mattress and very carefully.

The existing differences between the French and American folding beds

It is difficult for an unprepared buyer to see the difference between the sofas offered in stores: their assortment is so large that only preliminary preparation will help to make the right choice.

The mechanism of transformation of the "French clamshell" differs from the American prototype.

The American clamshell includes two stagesdecomposition, so it is possible to use a thicker and more comfortable mattress (up to 15 cm). The thickness of the sleeper, built into the French version, is up to 6 cm. Because of this, American-type sofas are considered a more ordinary option for permanent use, and French - a guest.

However, the American version has a significantminus: non-standard sizes of the proposed models. In case of damage that caused the breakdown of the frame, it is very difficult to replace it. In this regard, the mechanism for transforming the sofa "French clamshell" is much more economical: furniture items are produced in standard sizes. This greatly simplifies the process of replacing the mattress and frame.

There is a similarity, it is in principlefolding the sofa "French clamshell": the mechanism consists of several identical sections, which are connected with each other by hinges, and it unfolds perpendicular to the back.

French clamshell gear

In addition, both American and French models are very diverse: you can find armchairs, angular and direct sofas.

French clamshell. Mechanism: advantages and disadvantages

Briefly denote the pros and cons of the sofas "French clamshell."

mechanism for transforming the sofa French clamshell

Briefly denote the pros and cons of the sofas "French clamshell."

Benefits:

  • Compactness.
  • Economical: relatively low price; The kit is supplemented with standard sizes, which significantly reduces costs (and hassle) with the possible replacement of a berth.
  • Designer appearance solution. Corner or straight sofas ergonomically combine comfort, comfort and can perfectly complement any interior.

Disadvantages:

  • Absence of linen boxes.
  • Calculated for a maximum of seven years of operation, after that you have to replace the sofa. The mechanism of the "French clamshell" quickly wears and breaks.


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