Troxell Law Office PLLC
Adjustable casing for helical spring
An adjustable casing for helical spring mainly includes a male and a female case, and a rotation member. A helical spring is enclosed in the casing with an end of fixedly connected to a fixing seat provided at a bottom center of the female case, and another end located in the male case. The rotation member is provided around an outer or an inner surface with a plurality of stoppers that are adapted to engage with coils of the helical spring. When the rotation member is rotated, the number of active coils of the spring subjected to a compressing or a stretching force is changed, and the modulus of elasticity of the helical spring is adjusted, accordingly. The helical spring mounted in the adjustable casing may have higher flexibility in its usage to meet requirements of different machines.
F B B B F B
F16F B60G B60G B60G F16F B60G
inventional additional additional additional inventional additional
Cheng-Ming
Chou