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US 2011/0251008 A1Published application
Transmission unit
AssigneePinion GmbH
InventorsMichael Schmitz, Christoph Lermen
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AssigneePinion GmbH
InventorsMichael Schmitz, Christoph Lermen
Estimating the term…
The present invention relates to a transmission unit for a vehicle driven by muscle force, comprising an input shaft which can be connected to cranks on opposite sides for driving the vehicle, comprising a first partial transmission. The first partial transmission comprises a countershaft, wherein a plurality of driving gear wheels is mounted on the input shaft, and wherein a corresponding plurality of driven gear wheels of the first partial transmission is mounted on the partial transmission shaft. The driven gear wheels of the first partial transmission are designed as idler gears that can be connected to the countershaft by means of shifting means in a rotationally rigid manner. The countershaft forms an input shaft of a second partial transmission. A plurality of second drive wheels are mounted on the output shaft, wherein the second partial transmission comprises an output shaft, on which a corresponding plurality of second driven gear wheels are mounted.
A shifting device for a transmission unit of a vehicle operated by muscle force, having a first shaft on which a plurality of idler gears is mounted, a corresponding number of gearwheels, wherein the idler gears and the gearwheels form wheel pairs of two partial transmissions connected in series to each other, wherein the gearwheels of each of the two partial transmissions are mounted on one respective shaft, wherein the idler gears can each be connected rotationally fixed to the first shaft by means of a shifting assembly, wherein the first shaft is formed as a hollow shaft having two shifting pins each assigned to the shifting assemblies of one of the two partial transmissions, wherein the shifting pins are arranged coaxially on the inside of the hollow shaft, wherein the shifting pins are each connected to a driving device which is configured to rotate the shifting pins in order to actuate the respective shifting assemblies of the two partial transmissions independently, wherein the driving device is configured to rotate the corresponding shifting pin by means of a planetary gear mechanism synchronously with respect to the first shaft in order to maintain a shifted state and to rotate the shifting pin in relation to the first shaft in order to carry out a gear change.
A shifting device for a transmission unit of a vehicle operated by muscle force, having a first shaft on which a plurality of idler gears is mounted, a corresponding number of gearwheels, which are mounted on at least one second shaft, wherein the idler gears can each be connected to the first shaft by means of a shifting assembly, wherein the first shaft is formed as a hollow shaft having two shifting pins which are arranged coaxially on the inside, wherein the shifting pins are each connected to a driving device which is configured to rotate the shifting pins in order to actuate the shifting assemblies.
A transmission unit for a vehicle which is driven by muscle force, having an input shaft which can be connected on opposite sides to cranks for driving the vehicle, having a first partial transmission, wherein the first partial transmission has a countershaft, wherein a plurality of driving gearwheels is mounted on the input shaft, and wherein a corresponding plurality of driven gearwheels of the first partial transmission is mounted on the countershaft, wherein the driven gearwheels of the first partial transmission are formed as idler gears which can be connected rotationally fixed to the countershaft by means of shifting assemblies, wherein the countershaft forms an input shaft of a second partial transmission, on which input shaft a plurality of second driving gears is mounted, wherein the second partial transmission has an output shaft on which a corresponding plurality of second driven gearwheels is mounted, wherein the second driving gears of the second partial transmission are formed as idler gears which can be connected rotationally fixed to the input shaft by means of shifting assemblies, and wherein the output shaft of the second partial transmission is formed as a hollow shaft which is arranged coaxially with respect to the input shaft.
A transmission unit for a vehicle driven by muscle force, having a first partial transmission, wherein the first partial transmission has an input shaft and a countershaft, wherein a plurality of driving gears is mounted on the input shaft, and wherein a corresponding plurality of driven gears is mounted on the countershaft, wherein the countershaft of the first partial transmission can be connected to an input shaft of a second partial transmission, on which input shaft a plurality of second driving gears is mounted, wherein the second partial transmission has an output shaft on which a corresponding plurality of driven gearwheels is mounted, and wherein the countershaft of the first partial transmission can be connected to the input shaft of the second partial transmission by means of at least one epicyclic transmission.
A transmission housing for a transmission unit of a vehicle driven by muscle force, having a housing casing which forms a circumferential face of the transmission housing, and a transmission cage for mounting the transmission unit, which transmission cage has pins for axially connecting at least two bearing plates, wherein at least one of the bearing plates is formed in such a way that in the assembled state of the transmission housing it closes off the housing casing at one axial end.
Dependencies are inferred from the claim text.