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1. WO1989000401 - POWERMETER FOR A CRANK DRIVE

Publication Number WO/1989/000401
Publication Date 26.01.1989
International Application No. PCT/EP1988/000601
International Filing Date 06.07.1988
Chapter 2 Demand Filed 16.02.1989
IPC
B62M 6/40 2010.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
6Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
40Rider propelled cycles with auxiliary electric motor
B62M 6/45 2010.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
6Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
40Rider propelled cycles with auxiliary electric motor
45Control or actuating devices therefor
B62M 6/50 2010.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
6Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
40Rider propelled cycles with auxiliary electric motor
45Control or actuating devices therefor
50characterised by detectors or sensors, or arrangement thereof
B62M 6/55 2010.1
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
6Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
40Rider propelled cycles with auxiliary electric motor
55power-driven at crank shafts parts
G01L 3/10 2006.1
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
3Measuring torque, work, mechanical power, or mechanical efficiency, in general
02Rotary-transmission dynamometers
04wherein the torque-transmitting element comprises a torsionally-flexible shaft
10involving electric or magnetic means for indicating
G01L 3/14 2006.1
GPHYSICS
01MEASURING; TESTING
LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
3Measuring torque, work, mechanical power, or mechanical efficiency, in general
02Rotary-transmission dynamometers
14wherein the torque-transmitting element is other than a torsionally-flexible shaft
CPC
A63B 2220/34
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
2220Measuring of physical parameters relating to sporting activity
30Speed
34Angular speed
A63B 2220/54
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
2220Measuring of physical parameters relating to sporting activity
50Force related parameters
54Torque
A63B 69/16
AHUMAN NECESSITIES
63SPORTS; GAMES; AMUSEMENTS
BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
69Training appliances or apparatus for special sports
16for cycling ; , i.e. arrangements on or for real bicycles
B62M 6/40
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR ; SINGLE-TRACK; CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
6Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
40Rider propelled cycles with auxiliary electric motor
B62M 6/45
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR ; SINGLE-TRACK; CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
6Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
40Rider propelled cycles with auxiliary electric motor
45Control or actuating devices therefor
B62M 6/50
BPERFORMING OPERATIONS; TRANSPORTING
62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR ; SINGLE-TRACK; CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
6Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
40Rider propelled cycles with auxiliary electric motor
45Control or actuating devices therefor
50characterised by detectors or sensors, or arrangement thereof
Applicants
  • SCHOBERER, Ulrich [DE]/[DE]
Inventors
  • SCHOBERER, Ulrich
Priority Data
P 37 22 728.909.07.1987DE
P 37 38 104.010.11.1987DE
Publication Language German (de)
Filing Language German (DE)
Designated States
Title
(EN) POWERMETER FOR A CRANK DRIVE
(FR) DISPOSITIF DE MESURE DE LA PUISSANCE D'UNE COMMANDE A MANIVELLE
Abstract
(EN) In a device for measuring the power of a crank drive in which the torque is transmitted from the crank (1) to a drive disk (2), for example to the face of the bottom bracket ball bearing of a bicycle, the mechanical parameters, torque and angular speed of the crank are converted to electric signals. The force (K) exerted on the crank via a deformation element (3), for example a flexible element, is transmitted to the drive disk (2) and the deformation of the deformation element (3), which is a measure of the force (K), is converted to an electric signal by elongation gauges (6), inductive displacement sensors, or piezoelectric crystals. The angular speed of the crank (1) is measured by a reed contact, a light barrier, an induction loop, or a mechanical tachometer. When this type of power measurement is applied to a bicycle, the pedalling power is not converted to braking heat as in the case of stationary ergometers, but can be converted to forward movement of the bicycle.
(FR) Un dispositif sert à mesurer la puissance d'une commande à manivelle dans laquelle le couple rotatif est transmis de la manivelle (1) à un disque d'entraînement (2), tel le plateau du palier du pédalier d'une bicyclette. Les paramètres mécaniques au niveau de la manivelle (1), le couple rotatif et la vitesse angulaire, sont convertis en signaux électriques. La force (K) s'exerçant sur la manivelle (1) par l'intermédiaire d'un organe déformable (3), par exemple un organe flexible, est transmise au disque d'entraînement (2), et la déformation de l'organe déformable (3), qui constitue une mesure de la force (K), est convertie en un signal électrique par des jauges d'allongement, par des capteurs inductifs de déplacement ou par des cristaux piézoélectriques. La vitesse angulaire de la manivelle (1) est mesurée au moyen d'un relais à contacts scellés, d'un barrage photoélectrique, d'une boucle d'induction ou d'un compte-tours mécanique. Lorsque l'on applique ce type de mesure de la puissance à une bicyclette, la puissance de pédalage ne se transforme pas en chaleur de freinage comme dans le cas d'érgonomètres statiques, mais peut être convertie en un mouvement d'avancement de la bicyclette.
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