Wrapped V-belt and method for manufacturing wrapped V-belt
AssigneeMitsuboshi Belting Ltd.
InventorTeruyoshi Imaoka
Life of this patent
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Abstract
A wrapped V-belt includes: a belt main body containing a compression layer containing a compression rubber layer and a fabric-laminated body layer a tension rubber layer and a tension member buried between the compression layer and the tension rubber layer; and an outside cloth that covers a periphery of the belt main body, in which the compression layer has a plurality of notch portions not covered with the outside cloth, and the notch portion has a top disposed in the fabric-laminated body layer.
Claims13
A wrapped V-belt that is made to travel while a belt inner surface side thereof is wound around a pulley, comprising:
- a belt main body comprising
- a compression layer disposed on the belt inner surface side and comprising a compression rubber layer and a fabric-laminated body layer in which a plurality of pieces of a rubber composition-attached fabric are laminated and adhered to each other,
- a tension rubber layer disposed on a belt outer surface side, and
- a tension member buried between the compression layer and the tension rubber layer,
- wherein the belt main body has a V shape with a width on the belt inner surface side being smaller than a width on the belt outer surface side on a section in a belt width direction,
- wherein the compression layer has a plurality of notch portions formed to extend in the belt width direction to be open on the belt inner surface side, and disposed to be aligned in a belt circumferential direction, and
- wherein a notch portion among the plurality of notch portions has a top positioned on the most belt outer surface side in a belt thickness direction and disposed in the fabric-laminated body layer, a part of the fabric-laminated body layer is cut by the notch portion, and the fabric-laminated body layer is exposed in the notch portion;
- and
- an outside cloth that covers a periphery of the belt main body over an entire length in the belt circumferential direction, but does not cover the belt inner surface side of the notch portions.
A method for manufacturing a wrapped V-belt comprises:
- preparing a wrapped V-belt, the wrapped V-belt comprising:
- a belt main body comprising
- a compression layer disposed on a belt inner surface side and comprising a compression rubber layer and a fabric-laminated body layer in which a plurality of pieces of a rubber composition-attached fabric are laminated and adhered to each other,
- a tension rubber layer disposed on a belt outer surface side, and
- a tension member buried between the compression layer and the tension rubber layer;
- and
- forming notch portions to extend in a belt width direction to be open on the belt inner surface side of the compression layer and disposed to be aligned in a belt circumferential direction such that a notch portion, among the notch portions, has a top positioned on the most belt outer surface side in a belt thickness direction in the fabric-laminated body layer, and is formed so as to cut a part of the fabric-laminated body layer, and the fabric-laminated body layer is exposed in the notch portion,
- wherein the wrapped V-belt further comprises an outside cloth that covers a periphery of the belt main body over an entire length in the belt circumferential direction, but does not cover the belt inner surface side of the notch portions.
Dependencies are inferred from the claim text.