Rocker arm of the cam-follower type with ribs

Details Rocker arm of the cam-follower type with ribs Rocker arm of the cam-follower type with ribs

1988-09-12

1989-05-02

Moore, Richard E.

Machine element or mechanism

Control lever and linkage systems

Elements

74559, 291564R, 123 9039, 123 9044, B23P 1500, F01L 118, G05G 104

Patent

active

048257176

ABSTRACT:
A one-piece, cold-formed rocker arm of the cam-follower type is provided. The rocker arm includes a one-piece metal body cold formed from a metal blank and being of inverted U-shaped cross section throughout most of its length. The body has a top wall with depending, structurally-integral side walls. An intermediate, convex portion of the top wall has an opening extending therethrough with an axle extending between the side walls below the opening. A cam-contacting roller is rotatably mounted on the axle and has a circumferential surface exposed at the opening to engage a cam. The rocker arm body has a recess at one end portion to receive a lifter post and an additional recess at another end portion to receive an end of a valve stem. The one end portion of the body is wider than the remainder of the body. Ribs are formed at the lower edges of the body and extend along the intermediate portion of the body between the two end portions. The outer edges of the ribs do not extend beyond the side walls of the body at the one end portion thereof.

REFERENCES:
patent: 4430783 (1984-02-01), Wherry
patent: 4624223 (1986-11-01), Wherry et al.
patent: 4697473 (1987-10-01), Patel
patent: 4727832 (1988-03-01), Miyamura et al.
patent: 4738231 (1988-08-01), Patel et al.
patent: 4762099 (1988-08-01), Fujii et al.
patent: 4768467 (1988-09-01), Yamada et al.

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