Spring devices – Coil – Including end thrust member
Patent
1993-08-18
1995-07-11
Oberleitner, Robert J.
Spring devices
Coil
Including end thrust member
267289, F16F 106
Patent
active
054313783
ABSTRACT:
A method and an article for assembling a compression die spring in a spring pocket formed in a die member includes a retainer having an outer edge that is larger in width than the diameter of the sidewall of the spring pocket in order to form an interference fit with the sidewall and, thereby, retains a spring, a portion of which is spanned by the member in the spring pocket. The retainer has four legs whose distal ends are on a circle whose diameter is larger than the diameter of the pocket sidewall. At least two of the legs are configured to straddle a turn of the spring to allow the retainer to be juxtaposed with the spring with all four legs extending outwardly from the spring to engage the pocket sidewall. In one embodiment, the outer edge of the retainer is turned in order to accommodate variations in diameter of the pocket sidewall.
REFERENCES:
patent: 1031317 (1912-07-01), Barbour, Jr.
patent: 2561405 (1951-07-01), O'Brien et al.
patent: 4288064 (1981-09-01), Austen
patent: 4521005 (1985-06-01), Calderoni
patent: 4529179 (1985-07-01), Seyler
patent: 4543988 (1985-10-01), Haveteau
patent: 4807859 (1989-02-01), Bolthouse
patent: 4881725 (1989-11-01), Shioda et al.
Product brochure entitled "The BMC Spring Retainer" published by The BMC Spring Retainer, Traverse City, Mich., publication date unknown.
Descriptive literature entitled "Die Design Standards" published by General Motors Corporation in the United States, Jun., 1987, Of specific interest is paragraph 43.02 entitled "Spring Retainers".
Descriptive literature entitled "Die Design Standards", published by General Motors Corporation in the United States, Jun., 1987. Of specific interest is paragraph 61.04 entitled "Spring Retainers".
Product descriptive literature entitled "Danly Spring Retainers" published by Danly Corporation in the United States, publication data unknown.
Oberleitner Robert J.
Sharp Design, Inc.
Young Lee W.
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