Transmission and shift control system
AssigneeIkeya Forumla Co., Ltd.
InventorsShinji Ikeya, Masao Teraoka
Life of this patent
Estimating the term…
Abstract
The present invention is capable of suppressing gear shift shocks or delays in acceleration with no interruption of driving force and reducing the weight. Disclosed is a transmission which is provided, with multiple stage shift gears so arranged to shift a number of dog clutches to shift a gear to the upper stage of the multiple stage shift gears, and is characterized in that a guide part is provided to a shift operation section and the dog clutches on each of the sages so as to move the lower dog clutch in a neutral direction by a coasting torque acting on the lower stage by a shift rotation of the upper stage to release a meshing engagement when meshing engagements of the lower and upper dog clutches are simultaneously performed by an operation of the shift operation section.
Claims10
A transmission comprising:
- multiple stage shift gears fixed to or relatively rotatably supported with driving force transmission shafts;
- a plurality of clutch rings each having meshing parts on both sides for meshing with the respective shift gears that take two speeds or more away from each other, so as to connect the respective shift gears to the driving force transmission shafts and perform a shifted output;
- a shift operation part that selectively operates the clutch rings;
- guide parts that are provided for respective stages of the shift gears between the clutch rings and the driving force transmission shafts so that, when meshing engagements of the clutch rings of an upper stage and a lower stage are simultaneously performed through the operation of the shift operation part in which the operation of the shift operation part is selected from the group consisting of a shift-up operation of the operation part and a shift-down operation of the operation part, axial forces oriented in opposite directions that are a meshing-engagement direction and a meshing-release direction are generated on the clutch rings of the upper stage and the lower stage.
Dependencies are inferred from the claim text.