Stamped two-step rocker arm component

Details Stamped two-step rocker arm component Stamped two-step rocker arm component

2006-08-15

2006-08-15

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090440, C029S888200

Reexamination Certificate

active

07089899

ABSTRACT:
A rocker arm (25) adapted to engage a pair of cam lobes (15,17), the rocker arm having first (31) and second (33) sidewall portions, and being formed from a flat sheet metal blank (25B) having a nominal thickness (T). The sidewall portions (31,33) define fold regions (51,53) whereby, after each is folded over upon itself, and the rocker arm is formed to have the sidewall portions generally parallel to each other, the fold regions provide first (41) and second (43) cam contact surfaces, each having a width (W) substantially greater than the nominal thickness of the blank.

REFERENCES:
patent: 4624233 (1986-11-01), Phillips
patent: 5010857 (1991-04-01), Hempelmann et al.
patent: 5655488 (1997-08-01), Hampton et al.
patent: 6601555 (2003-08-01), Okubo et al.
patent: 6981479 (2006-01-01), Abe

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