Connecting device for connecting a drive unit to a bicycle frame

The connecting device with a sleeve unit and axial locking mechanism addresses the challenges of rigid connection, noise damping, and maintainability by providing a secure, adjustable, and cost-effective attachment for bicycle drive units.

WO2026125323A1PCT designated stage Publication Date: 2026-06-18ZF FRIEDRICHSHAFEN AG
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
ZF FRIEDRICHSHAFEN AG
Filing Date
2025-12-09
Publication Date
2026-06-18

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Abstract

The invention relates to a connecting device (1) for connecting a drive unit (2) to a receiving interface (3) of a bicycle frame (4), comprising: a sleeve unit (5) having a sleeve central region (5c) extending along a first longitudinal axis (A), a first end (5a) of the sleeve unit (5) having a larger outer diameter than the sleeve central region (5c), and the opposite second end (5b) of the sleeve unit (5) having a smaller outer diameter than the sleeve central region (5c), the connecting device (1) further comprising an axial securing means (6) for mechanically connecting to the second end (5b).
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