Link plate for a silent chain

Details Link plate for a silent chain Link plate for a silent chain

2006-05-23

2006-05-23

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

Positive drive belt

Belt formed of rigid links

C474S215000

Reexamination Certificate

active

07048664

ABSTRACT:
A link plate for silent chains includes a pair of teeth, each formed of an inside flank and an outside flank and a pair of pin apertures. A moment of force around a pin M=F×Lo, where F is a force applied by a sprocket tooth against the outside flank, and Lo is a length of a perpendicular drawn from a center O of a pin aperture to an action line of the force, is decreased by decreasing Lo. The link plate engages a sprocket tooth on an intersection between a straight line n and a flank, line n and the direction of a central line connecting each O forming a pressure angle α, and contacting a circle having a center O and a radius r<0.25×P, where P is a pin aperture pitch. Also, α of the outside flank satisfies an inequality, 32°≦α<34°, to lessen the force.

REFERENCES:
patent: 2725755 (1955-12-01), Rippelle et al.
patent: 6159122 (2000-12-01), Kanehira et al.
patent: 6334828 (2002-01-01), Suzuki
patent: 6435996 (2002-08-01), Horie et al.
patent: 6533691 (2003-03-01), Horie et al.
patent: 2001/0007842 (2001-07-01), Suzuki et al.
patent: 60164042 (1984-08-01), None

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