Pitch equalized chain with frequency modulated engagement

Details Pitch equalized chain with frequency modulated engagement Pitch equalized chain with frequency modulated engagement

1989-02-28

1990-04-10

Bui, Thuy M.

Endless belt power transmission systems or components

Positive drive belt

Belt formed of rigid links

474214, F16G 1304

Patent

active

049156756

ABSTRACT:
A power transmission chain having a plurality of pin connected articulating and guide ranks wherein each rank may include plain links having a thickness that may vary from rank to rank. A group of plain links having a preselected thickness is disposed in articulating ranks throughout the chain. Other groups of plain links having a different preselected thickness are disposed in nonarticulating ranks of the chain. The combination of different thickness plain links disposed in a preselected manner coupled with elastic guide links throughout the chain is effective to minimize wear.
The groups of plain links having preselected but different thicknesses cooperate with different thickness guide links therein so as to improve load distribution thereacross, achieve equal deformation between the plain links and the guide links and maintain the transverse connecting pins substantially parallel to each other.
The plain links in this chain which are of the two toe variety are characterized by having nonidentical toes. As a result of this difference, the dimensions from the center of the pins to the working surfaces of each toe vary with the result being that the timing between successive link and sprocket tooth engagements can be varied.

REFERENCES:
patent: 16521 (1909-07-01), Ashdown
patent: 1138236 (1915-05-01), Morse

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