Speed-variable conveyor
First Claim
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1. A speed variable conveyor, comprising:
- a belt-formed fibrous body deformable in a moving direction and in a width direction;
movable supporting members for supporting both ends in the width direction of said fibrous body;
a pair of guide rails for movably supporting said supporting members and varying a width of said fibrous body by varying a distance between said rails to change moving speed of said fibrous body;
a support moving body provided in contact with a lower surface of said fibrous body;
a drive roller provided in contact with an inner surface of said support moving body;
a motor for driving said drive roller, said motor transmitting output torque directly to said drive roller; and
a pressing roller adapted to urge the lower horizontal portion of said support moving body towards said drive roller.
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Abstract
A speed-variable conveyor includes a belt-formed fibrous body deformable in a moving direction and a width direction, a plurality of rollers mounted on both ends in the width direction of the fibrous body, and a pair of guide rails for movably supporting the rollers and differing in spacing according to the moving speed of the fibrous body. The moving speed of the fibrous body is low where the width of the fibrous body is large, and high where the width is small. A support moving body contacting a lower surface of the fibrous body for driving the fibrous body is provided. This reduces a load applied to the fibrous body.
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Citations
18 Claims
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1. A speed variable conveyor, comprising:
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a belt-formed fibrous body deformable in a moving direction and in a width direction; movable supporting members for supporting both ends in the width direction of said fibrous body; a pair of guide rails for movably supporting said supporting members and varying a width of said fibrous body by varying a distance between said rails to change moving speed of said fibrous body; a support moving body provided in contact with a lower surface of said fibrous body; a drive roller provided in contact with an inner surface of said support moving body; a motor for driving said drive roller, said motor transmitting output torque directly to said drive roller; and a pressing roller adapted to urge the lower horizontal portion of said support moving body towards said drive roller. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17)
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14. A speed variable conveyor, comprising:
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a belt-formed body deformable in a moving direction and in a width direction; movable supporting members for supporting both ends in the width direction of said body; a pair of guide rails for movably supporting said supporting members and varying a width of said body by varying a distance between said rails to change moving speed of said body; a support moving body provided in contact with an inner surface of said fibrous body; a drive roller provided in contact with an inner surface of said support moving body; a motor for driving said drive roller, said motor transmitting output torque directly to said drive roller; and a pressing roller adapted to urge the lower horizontal portion of said support moving body towards said drive roller.
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18. A speed variable conveyor, comprising:
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a belt-formed fibrous body deformable in a moving direction and in a width direction; movable supporting members for supporting both ends in the width direction of said fibrous body; a pair of guide rails for movably supporting said supporting members and varying a width of said fibrous body by varying a distance between said rails to change moving speed of said fibrous body; a support moving body provided in contact with a lower surface of said fibrous body, said support moving body being provided in a form of a horizontal loop having an upper horizontal portion and a lower horizontal portion; a drive roller driven by a motor, an upper surface of said drive roller making contact with the inner surface of the upper horizontal portion and a lower surface of said drive roller making contact with the inner surface of the lower horizontal portion simultaneously; and a pressing roller adapted to urge the lower horizontal portion of said support moving body towards said drive roller.
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Specification