Driving with magnetic drive
A magnetic pinion system addresses the inefficiency in transferring rotational power from the rear axle to the rear wheel in magnet-powered bicycles by using a small magnetic pinion positioned near a larger gear, ensuring smooth operation and power transmission.
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-11-11
- Publication Date
- 2026-03-19
AI Technical Summary
Existing bicycles powered by magnets lack a smooth and efficient mechanism for transferring rotational power from the rear axle to the rear wheel, particularly in systems where a standard chain drive is used.
A magnetic pinion system is employed, where a small magnetic pinion is positioned 1 to 2 millimeters away from a larger magnetic gear, utilizing the same polarity to transfer rotational power via a pinion shaft supported by ball bearings, ensuring smooth operation and power transmission.
The magnetic pinion system provides a smooth and efficient power transfer from the rear axle to the rear wheel, enhancing the riding experience by coordinating toothing and power transmission.
Smart Images

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Abstract
Description
[0001] The bicycle is powered by magnets, riding like an electric bike without batteries or a motor. We need a rear wheel with a standard chain drive. The rear axle contains a gear driven by the axle. The pinion, which receives power from the gear, transfers the rotation to a small magnetic pinion that rotates 1 to 2 millimeters away from a larger magnetic gear. Due to the same polarity, the small magnetic pinion pushes the larger magnetic gear away from itself. This rotates the rear wheel. One, two, or three pinion shafts can be used to ensure smooth operation.
[0002] An embodiment of the invention is described by reference to the Fig. 1 and Fig. 2 explained. Fig. 1 cross-section Fig. 2 Front view of the magnetic drive - The gear 9 is rotated via the drive shaft 5, the pinion 10 takes up the rotation and moves the magnetic pinion 13 (helical) via the pinion shaft 11 (which is supported by ball bearings), due to the same polarity of the magnetic pinion 13 which is 1 to 2 millimeters away from the helical magnetic gear 8, the rear wheel is driven in the direction of travel. - The toothing of the pinion 10 and magnetic pinion 13 must be chosen so that smooth operation when pedaling is guaranteed. - The holder 12 is firmly attached to the axle so that it does not rotate. - The speed can be selected using the chainrings 6. - the freewheel 7 (for the free rolling of the wheel) Regarding the drawing 1. Tires 2. Spokes 3. Housing 4. Bicycle axle 5. Drive shaft 6. Sprocket 7. Free run 8. Helical magnetic gear 9th gear 10th sprocket 11. Pinion shaft 12. Holder 13. Magnet Pinion Helical Tooth Regarding the drawing 1. Tires 2. Spokes 3. Housing 4. Bicycle axle 5. Drive shaft The bicycle is driven via the normal chain drive with sprocket shifting; the magnetic pinion with the magnetic gear assists in smooth riding. 6. Sprocket 7. Freewheel: So that the rear wheel can move freely. 8. Helical-toothed magnet gear connected to housing, spokes, and tire 9. Gear connected to drive shaft, the toothing must be chosen so that the smooth running and power transmission are coordinated. 10. Pinion firmly on the pinion shaft 11. Pinion shaft 12. Holder firmly attached to the axle, holds the pinion shaft with ball bearing in position 13. Magnet pinion, helical teeth, fixed on the pinion shaft 1 to 2 millimeters away from the magnet gear.
Claims
[1] Helical magnetic gear and helical magnetic pinion [2] By pushing away the magnet pinion teeth polarity- to the magnet gear teeth polarity- the rear wheel is moved in the direction of travel.