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US 12,687,206 B2Granted
Drive device for a drive unit of an electric bike, drive unit and electric bike
AssigneeRobert Bosch GmbH
InventorsHeiko Roehm, Julian Binder, Dietmar Saur, Christoph Zimmermann, Lukas Mueller, Wolfgang Hau, Sigmund Braun, Joachim Klima, Stefan Holst, Alexander Nau
Life of this patent
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Abstract
A drive device for a drive unit of an electric bicycle has a bidirectional freewheeling assembly. The freewheeling assembly includes at least one clamping element unit.
Claims20
A drive device for a drive unit of an electric bicycle, comprising:
- a bidirectional freewheeling assembly including at least one clamping element unit,
- wherein the at least one clamping element unit includes (i) a mechanical control unit having a friction unit, and (ii) a clamping element holding member,
- wherein the friction unit is configured to generate an actuating force, and
- wherein the friction unit includes (i) at least one spring unit, and (ii) at least two friction elements configured to generate the actuating force.
1 more element
A drive device for a drive unit of an electric bicycle, comprising:
- a bidirectional freewheeling assembly including at least one clamping element unit,
- wherein the at least one clamping element unit includes a mechanical control unit having a friction unit,
- wherein the friction unit has at least one spring unit,
- wherein the friction unit is configured to generate an actuating force,
- wherein the at least one clamping element unit comprises a clamping element holding member, and
- wherein the at least one spring unit has at least one spring element fastened to a member that is separate from the clamping element holding member.
3 more elements
A drive device for a drive unit of an electric bicycle, comprising:
- a bidirectional freewheeling assembly including at least one clamping element unit,
- wherein the at least one clamping element unit includes a mechanical control unit having a friction unit,
- wherein the friction unit has at least one spring unit,
- wherein the friction unit is configured to generate an actuating force,
- wherein the at least one clamping element unit comprises a clamping element holding member, and
- wherein the at least one spring unit has at least one spring element which is fastened to the clamping element holding member.
3 more elements
A drive device for a drive unit of an electric bicycle, comprising:
- a bidirectional freewheeling assembly including at least one clamping element unit;
- and
- a force transmission element configured to transmit a driving force of the drive unit, the force transmission element including at least one lead through slot,
- wherein the at least one clamping element unit comprises (i) a clamping element holding member defining a circular periphery and a plurality of spaces configured to receive a plurality of rolling members, and (ii) at least one spring support structure extending radially outward from the clamping element holding member, and
- wherein the at least one spring support structure is (i) fixedly positioned relative to the clamping element holding member, and (ii) is positioned in the at least one lead through slot.
2 more elements
Dependencies are inferred from the claim text.