| 摘要 |
A spring support device including a housing having a lower wall and an upper wall, a helical compression spring within the housing and bearing at its lower end against the lower wall, a spring backing plate within the housing and bearing against the upper end of the spring, and a load-carrying unit extending through the spring and the lower wall and engaging the backing plate. In one embodiment, the load-carrying unit includes a threaded rod extending through the upper wall. In another embodiment, a pair of spaced threaded rods, which are parallel to the path of movement of the load-carrying unit, are secured to the backing plate and extend through the upper wall. In both embodiments, the rods are provided with nuts that are operable from the exterior of the housing for adjustably limiting downward travel of the backing plate and the load-carrying unit and, therefore, the force applied to the spring by a load.
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