Belt drive with compression span
AssigneeThe Gates Corporation
InventorJing Yuan
Life of this patent
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Abstract
A toothed belt drive with compression span comprising a first sprocket, a second sprocket, a toothed belt having a toothed belt length and trained between the first sprocket and the second sprocket, a first linear guide member in cooperative relation to and disposed a predetermined distance (B) from the toothed belt, a second linear guide member in cooperative relation to and disposed a predetermined distance (B) from the toothed belt, and the toothed belt length greater than a drive length such that the toothed belt forms a free-standing arcuate span between the first sprocket and the second sprocket on a toothed belt compression span.
Claims15
A toothed belt drive with a compression span comprising:
- a first sprocket;
- a second sprocket;
- a toothed belt having a toothed belt length and trained between the first sprocket and the second sprocket;
- a first linear guide member in cooperative relation to and disposed at the predetermined distance (B) from the toothed belt;
- a second linear guide member in cooperative relation to and disposed a predetermined distance (B) from the toothed belt;
- and
- the toothed belt length greater than a drive length such that the toothed belt forms a free-standing arcuate span between the first sprocket and the second sprocket on a toothed belt compression span.
A toothed belt drive having a compression span comprising:
- a first sprocket;
- a second sprocket;
- a toothed belt having a toothed belt length, the toothed belt trained between the first sprocket and the second sprocket;
- a first linear guide member in cooperative relation to a toothed belt first span;
- a second linear guide member in cooperative relation to a toothed belt second span;
- and
- the toothed belt first span having an arcuate concave form when in compression.
A toothed belt drive having a compression span comprising:
- a first sprocket;
- a second sprocket;
- a toothed belt having a toothed belt length and trained between the first sprocket and the second sprocket;
- a first linear guide member in cooperative relation to the toothed belt and having a predetermined clearance distance (B) from the toothed belt;
- a second linear guide member in cooperative relation to the toothed belt and having a predetermined clearance distance (B) from the toothed belt;
- and
- the toothed belt length greater than a drive length by at least one belt pitch length such that the toothed belt forms a compression arcuate span between the first sprocket and the second sprocket.
A toothed belt drive comprising:
- a driver sprocket;
- a driven sprocket having a diameter (D) and separated from the driver sprocket by a distance (S);
- a toothed belt trained between the driver sprocket and the driven sprocket;
- a first guide member in cooperative relation to the toothed belt;
- a second guide member in cooperative relation to the toothed belt;
- and
- the toothed belt comprising a free-standing arcuate belt segment disposed between the driver sprocket and driven sprocket, wherein the arcuate belt segment describes a belt bending radius (Rbb) in the range of S/2≦Rbb≦D/2.
A toothed belt drive comprising:
- a driver sprocket;
- a driven sprocket;
- a toothed belt trained between the driver sprocket and the driven sprocket;
- the toothed belt comprising a free-standing arcuate belt segment disposed between the driver sprocket and driven sprocket;
- a first guide member in cooperative relation to the arcuate belt segment;
- the arcuate belt segment is subject to axial compression and a second portion of the toothed belt between the driver sprocket and the driven sprocket is in tension;
- and
- the toothed belt is in contact with the driven sprocket through an arc β greater than 180°.
Dependencies are inferred from the claim text.