Manual transmission for vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakao OHKI, Yasuhiro HADA, Yoshitaka FURUTA
Life of this patent
Estimating the term…
Abstract
When a shift lever is moved to a shift position corresponding to a first gear position etc., the shift lever is urged by its own weight to a neutral position, which is disadvantageous for the shift lever in terms of gear slip-out after shifting. However, a counter mass is moved to a position reached by turning a second predetermined angle, larger than a first predetermined angle corresponding to the neutral position, downward with respect to a vertical line passing through a center of turn of the counter mass. Meanwhile, the shift lever is urged by the weight of the counter mass in the direction away from the neutral position, so that gear slip-out after shifting can be prevented.
Claims2
A manual transmission for a vehicle, the manual transmission comprising:
- a shift lever configured to be shifted by a driver;
- a shift mechanism provided between the shift lever and a gear mechanism, the shift mechanism configured to transmit shifting of the shift lever to the gear mechanism;
- and
- a counter mass provided in the shift mechanism, the counter mass being configured such that the position of the center of gravity of the counter mass changes in a vertical direction as the counter mass turns according to shifting of the shift lever,
- the shift lever being configured such that, when a predetermined gear position is established at a first shift position, the shift lever is urged by the gravity to a neutral position,
- the counter mass being configured such that, when the shift lever is moved to the neutral position, the counter mass is turned a first predetermined angle downward with respect to a vertical line passing through the center of turn of the counter mass,
- the counter mass being configured such that, when the shift lever is moved to the first shift position, the counter mass is turned a second predetermined angle with respect to the vertical line in the same direction as the turning direction of the first predetermined angle, the second predetermined angle being an angle larger than the first predetermined angle,
- the counter mass being configured such that, when the shift lever is moved from the first shift position to a second shift position that corresponds to a gear position on the opposite side with respect to the neutral position, the counter mass is turned a third predetermined angle downward with respect to the vertical line in the opposite direction from the turning direction of the first predetermined angle.
Dependencies are inferred from the claim text.