Manually controlled shifting conversion apparatus for a multi-stage transmission
AssigneeZF Friedrichshafen AG
InventorsMichael Ebenhoch, Martin Flückiger
Life of this patent
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Abstract
A manually controlled shifting conversion apparatus for a multistage transmission having multiple shifting packets wherein gears for successive, non-adjacent gear ratios are located in each shifting packet and gears for successive, adjacent gear ratios are located in different shifting packets. The gears located in each shifting packet are respectively engaged by opposing axial displacements of the shifting packet controlled by a gear shift lever (4). The gear shift level (4) has a shifting pattern wherein the shifting positions of successive gear ratios are located in opposing positions in the shifting pattern.
Claims39
A manually controlled shifting conversion apparatus for a multistage transmission, the manually controlled shifting conversion apparatus comprising a plurality of shifting packets (2),
- wherein each shifting packet (2) includes gears (1′, 3′/2′, 4′/5′, 7′/6′, R) for successive, non-adjacent gear ratios;
- and
- gears for successive, adjacent gear ratios are located in different shifting packets;
- in each shifting packet, the gears located in the shifting packet are respectively engaged by opposing axial displacements of the shifting packet gears by axial motion of a shifting rod (310) coupled with a corresponding pivoting shifting finger (313) mounted on a shifting finger shaft (311) controlled by a gear shift lever (4);
- and
- the gear shift level (4) has a shifting pattern in which the shifting positions of successive gear ratios are located in opposing positions in the shifting pattern.
A shift mechanism for a multistage transmission wherein, in the transmission, two non-consecutive ratio stages are assigned to at least one shift packet and a shift lever is provided for actuation for the shift packets, and a shift pattern is assigned to the shift lever in which shift positions of each two consecutive gears are opposite each other in shift tracks, and the gears that are selectable within a shift track are assigned to different shift packets, the shift lever (4) is connected to a shift-finger shaft (11, 311), and this shift-finger shaft can be displaced axially and pivoted radially by the shift lever (4), and at least one shift finger (13, 313) is assigned to the shift-finger shaft (11, 12, 311), and the shift finger (13, 313) is disposed on the shift-finger shaft (11, 12, 311) such that, in a neutral position, the shift finger (13, 313) does not extend perpendicularly relative to a shift rod (310), and the respective shift finger (313), upon swivelling in one direction, actuates the shift rod (310) and the shift packet and, upon swivelling of the shift finger (313) in the opposite direction, the shift finger (313) becomes free and does not actuate the shift rod (310), the shift rod (310) being kinematically coupled to the shift finger (313) until the neutral position is again attained.
Dependencies are inferred from the claim text.