Bonnell
The term “bonnell” is used to refer to the coil springs used in a bonnell spring mattress. Bonnell is a type of compression spring that has two larger ends compared to the other coil steps. Bonnell springs are typically produced by fully automatic machines. In a bonnell spring mattress, whether it is a single or a double, there are a large number of these bonnell coils placed next to each other with a small gap in a regular pattern. These bonnell coils are connected to each other by springs called stitching springs, and their outer row is attached to the frame wire branch with a special tie wire.
The 2.2 mm wires are used for making the bonnell springs, which are the main components of the mattress. These wires are transformed into compression springs, known as bonnell springs, using fully automatic machines. The bonnell springs are then inserted into the mattress to provide comfort and proper support for the sleeper.
All of these wires are produced according to the product requirements and relevant standards. Each of these components plays a crucial role in the overall construction of the mattress.
We all love sitting on the edge of a spring mattress and feeling comfortable. In fact, the edges of spring mattresses are used more frequently than the center, and thus, they experience greater pressure. When we lie down in a horizontal position on the mattress, our weight is evenly distributed, resulting in less pressure on the spring mattress. However, when we sit on the edge of the mattress, our weight is concentrated on a smaller surface area, creating higher pressure.
After we get up and leave the edge, the edge of the mattress should return to its original state. This is why we need a stronger wire for the mattress frame. This can be achieved by branching the wire and selecting a thicker wire.
By employing these methods, the mattress frame can withstand the pressure applied to the edges, ensuring durability and comfort for users.
The size 4mm wire is commonly used for the frame of the mattress. This wire is produced in a branched form and is used as the surrounding frame in the mattress structure. It is connected to other wire branches and special ties to hold the mattress structure together, providing strength and stability.
Sewing springs or connector springs for bonnell springs usually have a smaller diameter compared to the bonnell springs themselves. Their task is to hold the bonnell springs together in such a way that the entire surface of the mattress is covered by the bonnell springs and that they remain firmly in place without any horizontal movement. They should only open and close in the vertical direction.
These springs are produced using semi-automatic machines and are connected to the bonnell springs. The operator manually places the bonnell springs in the machine, and then by pressing a button, the machine automatically connects the bonnell springs together with two separate rows of springs (the sewing operation).
