CONSTONs of variable load or reverse load type have a limit in the achievable output variation. Contact us for details.
The output of coil springs gradually increases by pulling or pushing them, whereas that of CONSTON constant force springs is constant no matter how far they are pulled or pushed.
A CONSTON with the output or torque characteristics meeting your needs can be manufactured by adopting the variable load type (A) or reverse variable load type (B) while maintaining the feature that obtains long stroke in a small space.
Variable load type (1)
Example: Product forward-feed case, C Type
The spring force is designed to increase gradually so that, when the case contains many products, they are pushed out strongly, and when it contains a few products, they are pushed weakly.
Variable load type (2)
Example: Opening/closing a sliding door, N Type
During the course of closing, the sliding door operates firmly at the beginning of the movement, and the output weakens gradually near the closing.
Reverse variable load type (1)
Example: Raising/lowering a pendant lighting, N Type
As the curl cord for an overhead light is extended, its force increases trying to return to its original form; thus, the spring has been made to decrease its force gradually so that the lighting fixtures can be balanced at any height.
Reverse variable load type (2)
Example: Raising/lowering a tool, N Type
The spring force is designed to change step by step so that, when not in use, the tool rises overhead, and it is balanced and lightens when lowered for use.
