Spring unit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 28, 1986
Issued Date -
N/A
app pub date -
May 7, 1985
filing date -
May 29, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plurality of main springs and a plurality of intermediate support springs are disposed and fixed on a rectangular base plate. Each main spring has a linear connecting rod portion and two coil spring portions such that one end of each of the two coil spring portions is coupled to a corresponding one of two ends of the first linear connecting rod portion. The main springs are disposed such that these connecting rod portions are perpendicular to each other in a matrix form. The other end of each of the coil springs is fastened to the base plate. Each intermediate support spring has a connecting rod portion and two coil spring portions. The connecting rod portion of each intermediate support spring is shorter than that of each main spring. One end of each of the coil spring portions of the intermediate support spring is coupled to a corresponding one of two ends of the connecting rod portion of the intermediate support spring. The one end of each of the two coil spring portions is fixed to the connecting rod portion of the corresponding main spring. The other end of each of the two coil spring portions is fastened to the base plate.
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