Conveyor belt with wear-tolerant stacked rollers
First Claim
Patent Images
1. A conveyor belt comprising:
- a top side and an opposite bottom side;
multiple roller sets, each roller set including a top roller protruding outward of the top side and a bottom roller below the top roller, the bottom roller being movable into contact with the top roller such that driving of one of the rollers in a first direction causes rotation of the other roller in an opposite second direction;
multiple cavities opening onto the top and bottom sides and bounded by a wall extending through the conveyor belt between the top and bottom sides, each cavity housing one of the bottom rollers;
a frame supporting each one of the bottom rollers rotatably within one of the cavities, wherein the frame is slidable along the wall of the cavity toward and away from the top roller.
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Accused Products
Abstract
A conveyor belt having multiple roller sets, each roller set including a first roller and a second roller, the first roller being movable into contact with the second roller so that driving of one of the rollers in a first angular direction causes rotation of the other roller in a second, opposite angular direction.
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Citations
18 Claims
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1. A conveyor belt comprising:
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a top side and an opposite bottom side; multiple roller sets, each roller set including a top roller protruding outward of the top side and a bottom roller below the top roller, the bottom roller being movable into contact with the top roller such that driving of one of the rollers in a first direction causes rotation of the other roller in an opposite second direction; multiple cavities opening onto the top and bottom sides and bounded by a wall extending through the conveyor belt between the top and bottom sides, each cavity housing one of the bottom rollers; a frame supporting each one of the bottom rollers rotatably within one of the cavities, wherein the frame is slidable along the wall of the cavity toward and away from the top roller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A conveyor comprising:
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a conveyor belt including; a top side and an opposite bottom side; a plurality of cavities extending through the conveyor belt from the top side to the bottom side; a plurality of roller sets, each roller set including a top roller protruding outward of the top side and a bottom roller movably received in the cavity; a roller frame rotatably supporting each of the bottom rollers, the roller frame and the bottom roller being slidable along the cavity toward and away from the top roller; a drive mechanism underlying the conveyor belt and contacting the bottom roller from below to cause the bottom roller to rotate in a first direction and to push the bottom roller against the top roller and rotate the top roller in an opposite second direction. - View Dependent Claims (14, 15)
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16. A conveyor belt module comprising:
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one or more cavities extending through the thickness of the module; a plurality of sets of first and second rollers, each first roller received in one of the cavities and having a first axis of rotation and each second roller being affixed to the belt module over the cavity and having a second axis of rotation parallel to the first axis of rotation; a plurality of rings, each rotatably supporting and encircling one of the first rollers; wherein each of the first rollers, along with its ring, is slidable along the cavity into and out of contact with the second roller so that, when the first and second rollers are in contact, rotation of the first roller on the first axis in a first direction causes the second roller to rotate on the second axis in an opposite second direction. - View Dependent Claims (17, 18)
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Specification