Method of manufacture of long cogged V-belts

Details Method of manufacture of long cogged V-belts Method of manufacture of long cogged V-belts

1984-12-17

1986-03-11

Flint, Jr., J. Howard

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Stretching or stretch forming

425 28B, 264231, 264320, B29H 722

Patent

active

045754454

ABSTRACT:
A method of forming a long cogged power transmission belt including extending a continuous looped vulcanizable belt preform element about a pair of axially parallel spaced support members, press-forming a first preselected length portion of the element disposed between the support members to form a first longitudinally extending series of cogs therein, vulcanizing the press-formed portion, press-forming a second, similar length portion of the element extending from the first portion and disposed between the support members to form a second longitudinally extending series of cogs therein continuing from the first series, vulcanizing the second press-formed portion, repeating the press-forming and vulcanizing operations if necessary until a final unformed portion of the belt extending from the last formed series of cogs and disposed between the support members has a length less than the preselected length, longitudinally stretching the final unformed portion to cause it to have a length approximately equal to the preselected length, press-forming the stretched final unformed portion to form a final longitudinally extending series of cogs therein to define a continuous series of substantially uniformly spaced cogs along the entire length of the looped element, and vulcanizing the final series of cogs.

REFERENCES:
patent: 2602188 (1952-07-01), Gorecki
patent: 3477895 (1969-11-01), Sauer
patent: 4042443 (1977-08-01), Hoback et al.
patent: 4359355 (1982-11-01), Stecklein et al.

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