Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Insulated handle – Knob-type handle
Patent
1997-02-10
2000-06-13
Mah, Chuck Y.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Insulated handle
Knob-type handle
A47B 9502
Patent
active
060733128
ABSTRACT:
A D-shaped retaining spring couples a knob to a shaft. The spring has a flange abutting the end face of the knob to fix the spring position in a cavity of the knob. Alternatively, instead of the flange, the inner end of the spring abuts a shoulder in the cavity to fix the spring position. In either case, the inner end of the spring has a tab extending radially inward at a location spaced from the cavity end wall to define a stop for the end of the shaft thereby holding the knob where it can protrude from an instrument panel for normal operation. An axial impact force on the knob causes the tab to yield, allowing the knob to slide further onto the shaft and into the panel for the purpose of avoiding injury due to striking the knob during a crash.
REFERENCES:
patent: 2316918 (1943-04-01), Wallace
patent: 2574330 (1951-11-01), Judd
patent: 3329452 (1967-07-01), Ammon
patent: 3336059 (1967-08-01), Leitmann
patent: 3338604 (1967-08-01), Van Buren, Jr.
patent: 3425723 (1969-02-01), Parkin et al.
patent: 3805637 (1974-04-01), Keeling, Jr.
patent: 4127342 (1978-11-01), Coggiola
patent: 5537893 (1996-07-01), Snider
Dao Phuc Ba
Miller James Norman
Vanbibber Douglas Scott
Delco Electronics Corporation
Funke Jimmy L.
Mah Chuck Y.
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