Belt tensioning apparatus

Details Belt tensioning apparatus Belt tensioning apparatus

1990-04-09

1991-03-26

Bui, Thuy M.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Pulley shifter

474138, F16H 708

Patent

active

050025180

ABSTRACT:
A belt tensioning apparatus using a spring to provide the proper tension in a belt. A belt/pulley assembly is disclosed with one pulley slidably mounted on a bracket. A spring compressed to a fixed distance to provide a known force is attached to the bracket by a screw. The bracket, being initially free to move, transfers the force to the belt/pulley assembly for providing the optimum tension in the belt/pulley assembly. Once the proper tension in the belt is obtained, the bracket can be securely fixed, preventing movement between the pulleys in the assembly. Re-tensioning, when necessary, is accomplished easily by simply loosening and resecuring the bracket.

REFERENCES:
patent: 382587 (1888-05-01), Bringold
patent: 3436979 (1969-04-01), Molitor
patent: 4240368 (1980-12-01), Adams
patent: 4571221 (1986-02-01), Isobe et al.
patent: 4583961 (1986-04-01), Kawasawa et al.
patent: 4838101 (1989-06-01), Dobberpuhl et al.

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