Gearshifting arrangement for actuating motor vehicle multi-speed gearboxes
AssigneeZF Friedrichshafen AG
InventorsGerhard Bailly, Unal Gazyakan
Life of this patent
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Abstract
A gearshifting arrangement for actuating motor vehicle multi-speed transmissions wherein an electromotive actuation takes place, it being essential that only one electric motor (1) connected with only one cam transmission (4) and only one gearshifting element are provided for actuating all gearshifting sets. The gearshifting element is a connecting rod (5) capable of moving parallel to the axis of the transmission wheels and in which are provided individually actuatable coupling mechanisms (11) respectively associated with a gearshifting lever. The electric motor (1), the spatial cam transmission (4) and the connecting rod (5) are coaxially arranged whereby a very simple and space-saving embodiment is achieved.
Claims15
A gearshifting arrangement for actuating motor vehicle multi-speed transmissions comprising:
- a single electric motor (1) for selectively producing all necessary gearshifting force and gearshifting movement in each of several gearshifting levers (12) of such a transmission,
- a single spatial cam transmission (4) connected in substantial axial alignment with a shaft (3) of said electric motor (1),
- a single connecting rod (5) operative between said cam transmission (4) and said gearshifting levers (12),
- wherein said spatial cam transmission (4) is a threaded spindle (6) with a threaded nut (7) running thereon and the motor shaft (3) is operatively connected with said single gearshifting rod (5), via said single cam transmission (4), for selectively individually shifting all of the gearshifting levers (12), and
- said connecting rod (5) reciprocally moves in a direction substantially parallel to an axis of rotation of gears of the transmission, several coupling mechanisms (11) are respectively associated with corresponding said gearshifting levers (12) and are individually actuatable for gear selection, when in an actuated state, each said coupling mechanism produces an operative connection between said connecting rod (5) and the corresponding gearshifting lever (12).
A gearshifting arrangement for actuating motor vehicle multi-speed transmissions comprising:
- a single electric motor (1) for selectively producing all necessary gearshifting force and gearshifting movement in each of several gearshifting levers (12) of such a transmission,
- a single spatial cam transmission (4) connected in substantial axial alignment with a shaft (3) of said electric motor (1),
- a single connecting rod (5) operative between said cam transmission (4) and said gearshifting levers (12),
- wherein said single electric motor (1) is operatively connected with said single gearshifting rod (5), via said single cam transmission (4), for selectively individually shifting each of the gearshifting levers (12), and
- said connecting rod (5) reciprocally moves in a direction substantially parallel to an axis of rotation of gears of the transmission, several coupling mechanisms (11) are respectively associated with corresponding said gearshifting levers (12) and are individually actuatable for gear selection, when in an actuated state, each said coupling mechanism produces an operative connection between said connecting rod (5) and the corresponding gearshifting lever (12).
A gearshifting arrangement for actuating motor vehicle multi-speed transmissions comprising:
- a single electric motor (1) for selectively producing all necessary gearshifting force and gearshifting movement in each of several gearshifting levers (12) of such a transmission,
- a single spatial cam transmission (4) connected in substantial axial alignment with a shaft (3) of said electric motor (1),
- a single connecting rod (5) operative between said cam transmission (4) and said gearshifting levers (12),
- a shaft (3) of said single electric motor (1) is operatively connected with said single gearshifting rod (5), via said single cam transmission (4), for selectively individually shifting all of the gearshifting levers (12), wherein
- said spatial cam transmission (4) comprises a threaded spindle (6) integrally connected with said connecting rod (5) to form a one-piece unitary part and a threaded nut (7) non-rotatably and axially non-slidably connected with said motor shaft (3) that runs on the threaded spindle, and
- said connecting rod (5) reciprocally moves in a direction substantially parallel to an axis of rotation of gears of the transmission, several coupling mechanisms (11) are respectively associated with corresponding said gearshifting levers (12) and are individually actuatable for gear selection, when in an actuated state, each said coupling mechanism produces an operative connection between said connecting rod (5) and the corresponding gearshifting lever (12).
Dependencies are inferred from the claim text.