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US 5,471,725 AGranted
Method for manufacturing mattresses or box springs, including improved spring transfer
AssigneeSimmons Company
InventorOtis Thrasher
Life of this patent
Estimating the term…
Abstract
A method is provided which provides an improved manner in which to manufacture innerspring constructions including individual springs. A rotating bristled brush is used to urge individual springs along a path from one position to another.
Claims16
A method for constructing mattress innerspring constructions, comprising the steps of:
- a) forming wire coil springs in a spring forming apparatus;
- b) depositing said coil springs from said spring forming apparatus onto a guide rod having a first end proximate said spring forming apparatus and a second distal end proximate a spring compression and pocketing station such that said guide rod passes through said coil springs;
- c) urging said coil springs along said guide rod to a compression zone in said compression and pocketing station by use of a rotating brush proximate said guide rod, said rotating brush having deflectable bristles contacting said coil springs;
- d) compressing said coil springs in said compression zone;
- e) pocketing said compressed coil springs into a continuous length of pocketed coil springs;
- and
- f) incorporating said continuous length of pocketed coil springs into a mattress innerspring construction.
4 more elements
A method for transferring springs from a first location to a second location, comprising the steps of:
- a) depositing said spring onto a guide rod at said first location such that said rod passes through said spring;
- and
- b) urging said spring along said rod to said second location by use of a rotating brush proximate said guide rod and having deflectable bristles contacting said spring.
Dependencies are inferred from the claim text.