Tretlagereinheit, umfassend einen Drehzahlsensor, und Fahrrad

• Main Authors: Benkert, Frank, Glück, Stefan, Meinel, Henrik
• Format: Patent
• Language: German
• Published: 22.04.2021
• Subjects: ACCESSORIES PECULIAR TO CYCLES AND NOT OTHERWISE PROVIDED FOR,e.g. ARTICLE CARRIERS, CYCLE PROTECTORS; CYCLE SADDLES OR SEATS; CYCLES; LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS; PERFORMING OPERATIONS; POWERED PROPULSION OF SLEDGES OR; RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES; TRANSPORTING

Tretlagereinheit, umfassendeine Tretlagerwelle (1),eine mit der Tretlagerwelle (1) drehfest verbundene Kettenblattwelle (3), undeinen Drehzahlsensor (4),dadurch gekennzeichnet,dass der Drehzahlsensor (4) als magnetischer Sensor ausgebildet ist, unddass der Drehzahlsensor (4) ein in das Korpus der Kettenblattwelle (3) eingeprägtes permanentes Magnetfeld (6) erfasst. The bracket has a chain ring shaft (3) frictionally connected with a bottom bracket shaft (1) in a form-fit manner by a torque-proof connection (2), and a rotation speed sensor (4) e.g. Hall sensor, for detecting a permanent magnetic field (6) formed in the body of the chain ring shaft. A sequence of magnetic poles is arranged along the circumference of the chain ring shaft. The magnetic field is arranged near an end section (7) of the chain ring shaft, where the rotation speed sensor is magnetically-strained.