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Transmission

  • US 8,887,588 B2
  • Filed: 10/19/2009
  • Issued: 11/18/2014
  • Est. Priority Date: 12/16/2008
  • Status: Active Grant
First Claim
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1. A transmission comprisinga first input shaft and a second input shaft disposed coaxially with each other,a first clutch for transmitting the driving force of an engine to the first input shafta second clutch for transmitting the driving force of the engine to the second input shaft,a single output shaft disposed in parallel to the first and second input shafts,reversing means for transmitting the driving force by reversing the rotational direction between the first input shaft and the second input shaft,an input gear provided on one of the first and second input shafts, andan output gear provided on the output shaft and always operatively connected to the input gear,when establishing a predetermined forward side gear position, the driving force of the engine being transmitted to a driven wheel via one of the first and second clutches the input gear provided on one of the first and second input shafts, and the output gear provided on the output shaft, and when establishing a reverse gear position, the driving force of the engine being transmitted to the driven wheel via the other of the first and second clutches, the other of the first and second input shafts, the reversing means, the input gear provided on said one of the first and second input shafts, and the output gear provided on the output shaft,an idle shaft and a countershaft are disposed in parallel to the first and second input shafts said other of the first and second input shafts is always operatively connected to the countershaft via a transmission gear train, an intermediate gear provided on the countershaft is always operatively connected to the output gear, andwhen establishing a forward side gear position, other than said predetermined forward side gear position, the driving force of the engine is transmitted to the driven wheel via said other of the first and second clutches said other of the first and second input shafts, the transmission gear train, the intermediate gear, and the output gear.

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