Loose bonnell springs, also known as bonnell coils, are often used in the furniture industry by assembling the loose springs on a bonnell spring assembly machine. The assembled bonnell springs units are used in mattresses and sofas. The quality of the loose bonnell springs is important for several reasons:
Consistency: The outside diameter and height of bonnell springs are important factor in determining the correct size and height of spring units for use in mattresses and sofas.
Comfort: Loose Bonnell springs that are made from high-quality steel and will provide better support and comfort for the user. They will be able to distribute weight evenly, reducing pressure points and improving overall comfort.
Durability: Mattresses and sofas with bonnell springs will be more durable and last longer compared to only foam, providing reliable support for the life of the furniture. This is important for furniture that will see frequent use, as only foam will sag more quickly and lead to a less comfortable seating experience.
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Butterfly springs, also known as edge springs, are used in both bonnell and pocket spring units to provide additional support and stability around the edge of spring units.
In bonnell spring and pocket spring units, butterfly springs are typically attached with a clinching machine to the top and bottom of the spring unit and are used to create a firm edge around the spring units. This can help to increase the lifespan of the mattress by reducing sagging along the edges.
Butterfly springs helps to maintain the shape of the mattress and prevent it from losing its support over time. Additionally, the use of butterfly springs in spring units can improve the edge support of the mattress, allowing the user to sit or sleep comfortably near the edge of the bed.
Zigzag springs, also known as sinuous or nosag springs, are commonly used in the sofa industry as a supportive base for seat and back cushions. These springs are made from a continuous piece of wire that is formed into a zigzag shape, with each end of the wire anchored to the frame of the sofa.
Here are some of the ways that zigzag springs are used in the sofa industry:
Seat Support: Zigzag springs are often used as the primary support system for sofa seats. The springs are installed in a serpentine pattern across the sofa frame, with each spring attached to the frame at both ends. This creates a strong and stable base for the cushions to rest on.
Back Support: Zigzag springs can also be used to provide support for sofa back cushions. In this case, the springs are installed vertically between the seat and the back of the sofa, creating a firm base for the cushions.
Suspension: Zigzag springs can also be used to suspend the entire sofa frame. This is typically done for sleeper sofas, where the entire frame needs to be supported in a way that allows it to be easily folded and unfolded.
Recliners: Zigzag springs can also be used in recliners, providing support for the footrest and backrest.
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