Method of manufacturing a resin spring
OwnerHiroki Makino, Tsutomu Tomizawainventors
Life of this patent
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Abstract
A method of manufacturing a resin spring which can improve close contact between a spring body and inner-pressure generating members to reduce variations in load characteristics due to repeated deformation during use. The method of manufacturing a resin spring includes the steps of forming an elastomer preform having inner closed chambers, inserting inner-pressure generating members into the inner closed chambers of the preform, and compressing the preform with the inner-pressure generating members therein by applying an external force to produce a permanently deformed portion having an oriented molecular structure.
Claims15
A method of manufacturing a resin spring, comprising the steps of:
- forming an elastomer preform having at least one inner chamber;
- inserting an inner-pressure generating member into each of said at least one inner chamber of said elastomer preform;
- and
- compressing said elastomer preform with said inner-pressure generating member therein by applying an external force to produce a permanently deformed portion.
A method of manufacturing a resin spring, comprising the steps of:
- integrally forming an elastomer preform and an inner-pressure generating member;
- and
- compressing said elastomer preform with said inner-pressure generating member therein by applying an external force to produce a permanently deformed portion.
A method of manufacturing a resin spring, comprising the steps of:
- forming an elastomer preform having at least one inner chamber;
- compressing said elastomer preform by applying an external force to produce a permanently deformed portion to form a spring body having at least one permanently deformed inner chamber;
- and
- injecting an inner-pressure generating resin into each of said at least one permanently deformed inner chamber of said spring body, and molding said inner-pressure generating resin into an inner-pressure generating member by using said spring body as a part of a die.
Dependencies are inferred from the claim text.