Gear brake device for a multi-speed manual transmission
AssigneeZF Friedrichshafen AG
InventorsMario Steinborn, Ramon Cordt
Life of this patent
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Abstract
The invention relates to a gear brake device for a multi-speed manual transmission (2), comprising a gear brake (16) that is arranged outside the transmission housing, that is led out of the transmission housing, and which has a power take-off shaft that is drive-connected or can be drive-connected with an input side gear shaft arrangement, said gear brake performing a synchronization function during up-shifting of the transmission in the known manner. According to the present invention, at least one PTO connection (20) with a drive connection to the power take-off shaft (12) is arranged downstream of the gear brake (16), so that the power take-off shaft (12) is also available for a PTO function.
Claims14
A gear braking device for a multi-speed manual transmission (2), the gear braking device comprising a gear brake that is located outside a transmission housing and engagable with a power take-off shaft (12, 112, 212) that extends out of the transmission housing and is drivingly connectable with an input-side gear shaft arrangement such that the input-side gear shaft arrangement is braked by the gear brake, via the power take-off shaft (12, 112, 212), at least one power take-off connection (20, 120, 220) being located downstream a gear mechanism (122, 222) and the at least one power take-off connection (20, 120, 220) being drivingly connected with the power take-off shaft (12, 112, 212), the gear brake braking and synchronizing rotation of the input-side gear shaft arrangement with rotation of a drive output shaft (6) during an upshift of the transmission (2) when a driving clutch is disengaged;
- the at least one power take-off shaft (112, 212) branches out into an auxiliary shaft (124, 224) which interacts with the gear brake (116, 216) and the at least one power take-off shaft (112, 212) comprises the at least one power take-off connection (120, 220);
- and
- the at least one power take-off shaft (112, 212) drives, via the gear mechanism (122, 222), the auxiliary shaft (124, 224).
A gear braking device for a multi-speed manual transmission (2), the transmission (2) having a transmission housing which houses a gear shaft arrangement which is connectable to and driven by a drive engine, via a drive clutch (4), and a transmission output shaft (6) is drivingly connected with the gear shaft arrangement within the transmission housing, the gear braking device comprising:
- a power take-off shaft (12, 112, 212) being drivingly connected to the gear shaft arrangement within the transmission housing, and the power take-off shaft (12, 112, 212) extends through the transmission housing to an exterior thereof;
- a gear brake (16, 116, 216), which is located exterior of the transmission housing, being engagable with an auxiliary shaft (124) and with the power take-off shaft (12, 112, 212) via a gear arrangement (122) such that the gear shaft arrangement is braked by the gear brake to synchronize rotation of the gear shaft arrangement with rotation of the drive output shaft (6) during an upshift of the transmission (2) when the driving clutch (4) is disengaged;
- and
- a power take-off connection (20, 120, 220) communicating with and being driven by the power take-off shaft (12, 112, 212).
Dependencies are inferred from the claim text.