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06/22/06 - USPTO Class 474 | 39 views | #20060135306 | Prev - Next | About this Page

Belt for continuously variable transmission and manufacturing method of the same

Title: Belt for continuously variable transmission and manufacturing method of the same

Related Patent Categories: Endless Belt Power Transmission Systems Or Components, Friction Drive Belt, Including Plural Interconnected Members Each Having A Drive Surface Facing In A Common Direction, Belt Has Oppositely Facing Side Drive Surfaces (e.g., "v-belt", Etc.)

Brief Patent Description - Full Patent Description - Patent Claims

The Patent Description & Claims data below is from USPTO Patent Application 20060135306, Belt for continuously variable transmission and manufacturing method of the same.

1. A belt for a continuously variable transmission (CVT), said belt comprising: an endless body; a plurality of V blocks attached to the endless body, wherein, said V blocks include a plurality of types of blocks having different thicknesses; and said V blocks are divided into a plurality of V block groups, said V block groups respectively having a different ratio of said plurality of types of V blocks.

2. The belt for a CVT as set forth in claim 1, wherein said different types of V blocks are arranged at random in said V block group.

3. The belt for a CVT as set forth in claim 1, wherein said different types of V blocks are arranged with a specified and predetermined order in said V block groups.

4. The belt for a CVT as set forth in claim 1, wherein a number of V blocks of each different type is almost equal in said series of V blocks.

5. The belt for a CVT as set forth in claim 1, wherein said V blocks comprise two types of V blocks including first V blocks and second V blocks whose thicknesses are different; and said plurality of V block groups is composed of a first V block group and a second V block group respectively having a different ratio of said first V blocks to said second V blocks.

6. The belt for a CVT as set forth in claim 1, wherein the ratio of said first V blocks to said second V blocks is inversive in said first and second V block groups.

7. The belt for a CVT as set forth in claim 1, wherein said endless body is a ring in which a plurality of metal sheets is laminated.

8. A belt for a continuously variable transmission (CVT), said belt comprising: an endless body; a plurality of V blocks attached to said endless body, wherein said V blocks include a plurality of types of V blocks having different thickness; said V blocks being divided into a plurality of V block groups respectively having a different ratio of said different types of V blocks; and said V block groups are formed from a series of said V blocks.

9. A method for manufacturing a belt for a continuously variable transmission (CVT) in which multiple V blocks of a plurality of types having different thicknesses are attached to an endless body, comprising: forming a plurality of V block groups respectively having a different ratio of different types of V blocks; and forming a series of V blocks by attaching a plurality of V blocks to the endless belt to provide said plurality of V block groups.

10. The method for manufacturing the belt for a CVT as set forth in claim 9, wherein forming said V block groups comprises: dividing said V blocks into a plurality of the V block groups, the V block groups respectively having a different ratio of different types of the V blocks; and specifying an arrangement of said V blocks in said V block groups; and said specifying an arrangement comprises, assembling a series of belts using said V block groups on a computer; simulating a state in which said assembled belts are respectively wound across pulleys to calculate a noise level; and analyzing the calculated noise level of each belt to determine an optimum belt.

11. A method for manufacturing a belt for a continuously variable transmission (CVT), comprising: dividing V blocks into a plurality of V block groups which respectively have a different ratio of different types of V blocks; specifying a plurality of arrangements of said V blocks for said V block groups so as to assemble a series of individual belts on a computer; simulating a state in which said plurality of assembled belts is wound across pulleys to calculate a noise level of the individual belts on the computer; and analyzing the calculated noise level of each belt to determine an optimum belt.

Brief Patent Description - Full Patent Description - Patent Claims

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Harmonic belt drive
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Powertrain arrangement for a skid-steer vehicle
Industry Class:
Endless belt power transmission systems or components

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