Belt-drive mechanism

Details Belt-drive mechanism Belt-drive mechanism

1998-06-29

1999-12-21

Graysay, Tamara L.

Endless belt power transmission systems or components

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

Pulley shifter

474117, 474101, F16H 714, F16H 708

Patent

active

060042362

ABSTRACT:
To provide a belt-drive mechanism wherein the tension degradation of the circular belt and slips of the dviving pulley are prevented, and a precise tension adjustment of the circular belt is enabled aw well, a belt-drive mechanism, having a fixed pulley (24), an adjust pulley (26), a circular belt (25), and an adjustment assembly (41) for adjusting distance between the fixed pulley (24) and the adjust pulley (26) by shifting position of the adjust pulley (26), comprises a pair of fastening members (32) for fixing the distance after the distance is adjusted. The adjustment assembly (41) comprises: a coupling member (31) having a screw hole (30); a pair of elastic members (32) for tensioning the shaft (27) outward of the circular belt (25); and an adjusting screw (29) set through a hole of another supporting face (28) to be screwed into the screw hole (30) of the coupling member. Each of the fastening members (32) has fitting holes (40) whereto tips of the shaft (27) and the coupling member (31) are to be engaged.

REFERENCES:
patent: 2146687 (1939-02-01), Regan
patent: 3901563 (1975-08-01), Day
patent: 4977708 (1990-12-01), Kloft
patent: 4983146 (1991-01-01), Charles et al.
patent: 5183441 (1993-02-01), Urda
patent: 5199502 (1993-04-01), Hirata et al.

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