Synchronous belt sprocket

Details Synchronous belt sprocket Synchronous belt sprocket

2008-05-02

2011-12-06

Kim, Sang (Department: 3654)

Endless belt power transmission systems or components

Positive drive pulley or guide roll

With particular belt

C474S205000

Reexamination Certificate

active

08070634

ABSTRACT:
A sprocket comprising at least one groove for engaging a toothed belt, said groove having a flank, the flank having a groove tip radii (R1) of between approximately 105% and approximately 125% of a belt tooth root radii (R8) when the toothed belt is in rack form, said groove tip radii being joined to a groove arcuate conjugate flank portion (200) by a linear flank portion (202), and said linear flank portion being disposed at an angle (Φ) of between approximately 18° to approximately 24° with respect to a groove centerline (CL) and comprising a length of at least approximately 20% of a sprocket groove depth (h).

REFERENCES:
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patent: 4840608 (1989-06-01), Araki et al.
patent: 4993998 (1991-02-01), Tanaka et al.
patent: 5015218 (1991-05-01), Macchiarulo et al.
patent: 451 700 (1974-07-01), None
patent: 0 106 694 (1984-04-01), None
patent: 0 505 919 (1992-09-01), None
patent: 2 796 692 (2001-01-01), None

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