Compact roller follower

Details Compact roller follower Compact roller follower

1995-07-19

1998-09-01

Marmor, Charles A.

Machine element or mechanism

Elements

Cams

74 55, 123 9039, 123 9044, F16H 5306

Patent

active

057995460

ABSTRACT:
A compact roller follower has a one-piece, cold-formed elongate metal body. The body has an intermediate portion, a first end portion, and a second end portion. The intermediate portion has two substantially parallel side walls and a large, elongate upper opening. The first end portion has a top wall and two side walls extending downwardly therefrom and spaced closer together than the parallel side walls of the intermediate portion. The first end portion forms a generally inverted U-shaped recess to receive an end of a valve stem. The second end portion has a second top wall and side walls extending downwardly therefrom. The end of the second top wall has a tongue which is doubled back underneath the second top wall. An upper surface of the tongue is in contiguous relationship with a lower surface of the second top wall and forms a recess to receive an upper end of a lifter post above a lifter post body. The second end portion of the roller follower is above the lifter post body for all positions of the roller follower. This enables the second end portion of the roller follower to be narrower since it need not straddle the lifter post body.

REFERENCES:
patent: 4430783 (1984-02-01), Wherry
patent: 4624223 (1986-11-01), Wherry et al.
patent: 4697473 (1987-10-01), Patel
patent: 4825717 (1989-05-01), Mills
patent: 4995281 (1991-02-01), Allor et al.

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