Spring blade tensioner with curved blade ends

Details Spring blade tensioner with curved blade ends Spring blade tensioner with curved blade ends

1998-01-22

1999-11-16

Graysay, Tamara L.

Endless belt power transmission systems or components

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

Tension adjuster has surface in sliding contact with belt

474140, F16H 708, F16H 718

Patent

active

059848154

ABSTRACT:
A tensioner for a chain drive (10) having a shoe (12) made of wear-resistant thermoplastic material and one or more flat spring blades (15) with the ends contained in pockets (13a, 14a) provided in the enlarged ends of the shoe. The ends of the flat spring blade or blades (15) are slightly curved with the convexity turned toward the same side on which the spring presents a concavity, to prevent these ends, as they wear, from creating a groove in the surface of the plastic material of the shoe pocket and blocking the free flow of the ends of the spring in the pockets.

REFERENCES:
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patent: 3463025 (1969-08-01), Turner et al.
patent: 3490302 (1970-01-01), Turner et al.
patent: 4921472 (1990-05-01), Young
patent: 5055088 (1991-10-01), Cradduck et al.
patent: 5266066 (1993-11-01), White
patent: 5286234 (1994-02-01), Young
patent: 5425680 (1995-06-01), Young
patent: 5462493 (1995-10-01), Simpson
patent: 5662540 (1997-09-01), Schnuepke et al.
patent: 5797818 (1998-08-01), Young
patent: 5853341 (1998-12-01), Wigsten

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