Tokyo

The mechanism of transformation walking euroknizhka – has a similarity with the mechanism euroknizhka.
But to unfold the sofa with this mechanism, you need to lift the seat by a special strap and pull towards yourself – then the mechanism is activated and the seat is set forward, resulting in the opening of the box, which is located under the seat of the sofa. And to create a sleeping place, you need to put the backrest on the vacated space.

The advantages of the staggered euroknicknizhka mechanism are:

• easy operation
• reliability and durability
• designed for daily use
• minimum number of joints
• there is a full width and full depth storage niche for your belongings

What to look out for:

• the sofa should not stand close to the wall, so that there is room to tilt the backrest during transformation
• must have silicone or rubber pads on the feet to avoid the possibility of scratching the floor covering.

Polyurethane foam is an environmentally friendly material whose main advantages – high elasticity, durability and hypoallergenic properties – give resilience and comfort. It is less springy and creates a firmer sleeping surface for those who feel more comfortable on such a surface.

Bonnell spring block – This spring block is a double cone springs made of steel, which are fastened together by a special frame or wire with special knots. To prevent the springs from unwinding on their own, they are attached at the first and last coil to a block consisting of two frames – lower and upper.

This construction is able to bear a lot of weight, so it can be safely used by people weighing more than 115 kg. Bonnell provides the mattress with a high level of reliability and elasticity.

The spring is soft when the load is light, but as soon as the load starts to increase, the spring starts to harden, creating a fairly even distribution of body weight. At the same time, it is able to avoid friction and squeaking.

A layer made of felt, polyurethane, batting or other materials is placed on top of the Bonnell spring unit. It is used to reduce the sensation of springs, to create additional comfort, air and moisture exchange, and to increase the rigidity of the mattress.