JPH08145824A - Device for recognizing transition of force applied on crank during periodic pushing motion of bicycle - Google Patents

Device for recognizing transition of force applied on crank during periodic pushing motion of bicycle

Info

Publication number
JPH08145824A
JPH08145824A JP7239829A JP23982995A JPH08145824A JP H08145824 A JPH08145824 A JP H08145824A JP 7239829 A JP7239829 A JP 7239829A JP 23982995 A JP23982995 A JP 23982995A JP H08145824 A JPH08145824 A JP H08145824A
Authority
JP
Japan
Prior art keywords
force
angle
pedal
crank
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7239829A
Other languages
Japanese (ja)
Inventor
Petzke Wolfgang
ヴォルフガング・ペツケ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE9415162U external-priority patent/DE9415162U1/en
Priority claimed from DE29507357U external-priority patent/DE29507357U1/en
Application filed by Individual filed Critical Individual
Publication of JPH08145824A publication Critical patent/JPH08145824A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
    • B62M6/40—Rider propelled cycles with auxiliary electric motor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
    • A61B5/224—Measuring muscular strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/41—Sensor arrangements; Mounting thereof characterised by the type of sensor
    • B62J45/411—Torque sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
    • B62J45/40—Sensor arrangements; Mounting thereof
    • B62J45/42—Sensor arrangements; Mounting thereof characterised by mounting
    • B62J45/421—Sensor arrangements; Mounting thereof characterised by mounting at the pedal crank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J50/00—Arrangements specially adapted for use on cycles not provided for in main groups B62J1/00 - B62J45/00
    • B62J50/20—Information-providing devices
    • B62J50/21—Information-providing devices intended to provide information to rider or passenger
    • B62J50/22—Information-providing devices intended to provide information to rider or passenger electronic, e.g. displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00—Construction of cranks operated by hand or foot
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • G01B7/18—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in resistance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2218—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction
    • G01L1/2225—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction the direction being perpendicular to the central axis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/108—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving resistance strain gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
    • G01L3/242—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity by measuring and simultaneously multiplying torque and velocity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/24—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity
    • G01L3/247—Devices for determining the value of power, e.g. by measuring and simultaneously multiplying the values of torque and revolutions per unit of time, by multiplying the values of tractive or propulsive force and velocity by measuring and simultaneously multiplying tractive or propulsive force and velocity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
    • G01L5/161—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance
    • G01L5/1627—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using variations in ohmic resistance of strain gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
    • G01L5/225—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to foot actuated controls, e.g. brake pedals
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/06—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement
    • A63B22/0605—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with support elements performing a rotating cycling movement, i.e. a closed path movement performing a circular movement, e.g. ergometers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/10—Positions
    • A63B2220/16—Angular positions
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/50—Force related parameters
    • A63B2220/51—Force
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/50—Force related parameters
    • A63B2220/54—Torque
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transportation (AREA)
  • Biophysics (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

PROBLEM TO BE SOLVED: To make the force acting on a pedal during a periodically pedaling period visually confirmable by a runner by measuring the shearing deformation added to a pedal shaft by an elongation measuring piece in two directions orthogonal to the pedal shaft. SOLUTION: Since elongation measuring half bridges 1-4 provided on a pedal shaft 11 are connected as two Wheatstone bridges 1, 3 and 2, 4, shearing deformation is recorded in two independent directions. The shearing deformation added to the pedal shaft 11 between a bearing and shaft connecting part is measured by the elongation measuring pieces in two directions orthogonal to the shaft 11, and the angle of the force related to the shaft is calculated from them by vector calculation. The direction of the force to a crank shaft and a crank 10 by mounting is regulated by this angle, and the angle of the pedal force to the coordinate system connected to a runner is calculated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、ペダル軸自身が力
測定要素として構成され、力測定要素によって供給され
た信号が増幅されてデジタル化され、所属するクランク
角は、角度発生器もしくは時間測定を介して認識され、
デジタル測定値は計算評価−表示装置に無線伝送される
ようにした、競技用自転車の周期的な踏込み運動の間ク
ランクに伝わる力の推移を認識する認識装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pedal shaft itself as a force measuring element, a signal supplied by the force measuring element is amplified and digitized, and a crank angle to which the pedal belongs belongs to an angle generator or a time measuring unit. Is recognized through
It relates to a recognition device for recognizing the transition of the force transmitted to the crank during the cyclical stepping motion of a competition bicycle, in which the digital measured values are transmitted wirelessly to a calculation evaluation-display device.

【０００２】[0002]

【従来の技術】競技用自転車において踏込み力の推移を
測定技術的に認識するためのペダルは、ＤＤ２９４６７
３号に記載されている。この場合、ペダルに加わる力
は、ペダル本体の力測定要素によって認識される。軸に
対するペダル本体の角度は、付加的に角度検出器によっ
て認識され、力の角度の算出に際して勘案される。ペダ
ル本体の大きさは、不可避的に増大するので、軸に対す
る力の伝達が不具合となる。2. Description of the Related Art The pedal for recognizing the transition of the stepping force in a competition bicycle by measuring technology is DD29467.
No. 3. In this case, the force exerted on the pedal is recognized by the force measuring element of the pedal body. The angle of the pedal body with respect to the axis is additionally recognized by the angle detector and taken into account when calculating the force angle. Since the size of the pedal body is inevitably increased, the force transmission to the shaft becomes a problem.

【０００３】踏込みクランクの踏込み力を伸び測定片に
よって認識し、クランクの角速度と共にマイクロコンピ
ュータによって処理し、それにより効率を計算する装置
は、ＤＥ３７２２７２８号に記述されている。A device for recognizing the stepping force of a stepped crank by means of an elongation measuring piece and processing it together with the angular velocity of the crank by a microcomputer and thereby calculating the efficiency is described in DE 3722728.

【０００４】しかし、単に回転パルス即ち、一定の方向
に向けられた力の成分が識別され、評価されるので、ク
ランクに対する実際の力の方向は勘案されていない。However, the actual direction of the force on the crank is not taken into account, since only the rotation pulse, ie the component of the force directed in a certain direction, is identified and evaluated.

【０００５】[0005]

【発明が解決しようとする課題】本発明の課題は、周期
的な踏込み期間の間ペダルに作用する力を走者にとって
可視的とするようにした、前記の認識装置を提供するこ
とにある。SUMMARY OF THE INVENTION It is an object of the invention to provide a recognition device of the above type in which the force acting on the pedal is visible to the runner during the cyclic depression.

【０００６】[0006]

【課題を解決するための手段】本発明によれば、この課
題は、ペダル軸に加わるせん断変形が、力作用点（軸
受）と軸結合部（固定ねじ）との間において、ペダル軸
と直交する２つの方向、好ましくは互に直交する該方向
において、伸び測定片によって測定され、軸に関する力
の角度をそれからベクトル計算によって算出すると共
に、この角度によって、取付けによるクランク軸及びク
ランクに対する力の方向を規定し、位置発生器について
の時間測定又は角度発生器を介して規定されるクランク
角度によって、走者に結合された座標系に対するペダル
への力の角度を計算するようにしたことによって解決さ
れる。According to the present invention, the problem is that the shear deformation applied to the pedal shaft is orthogonal to the pedal shaft between the force acting point (bearing) and the shaft coupling portion (fixing screw). In two directions, preferably orthogonal to each other, the angle of the force with respect to the shaft, which is measured by an elongation measuring piece, is then calculated by vector calculation, by means of which the direction of the force with respect to the crankshaft and the crank by mounting And by calculating the angle of force on the pedal with respect to the coordinate system coupled to the runner by means of a time measurement on the position generator or a crank angle defined via an angle generator. .

【０００７】本発明によれば、ペダル軸へのせん断変形
が測定される間、ペダル本体は全く不変に保つことがで
きる。ペダル本体とペダル軸との間の角度を認識する装
置は不要となる。According to the invention, the pedal body can be kept completely unchanged while the shear deformation on the pedal shaft is measured. A device for recognizing the angle between the pedal body and the pedal shaft is unnecessary.

【０００８】軸に対する抵抗モーメントは、全ての方向
において均等である。そのため、作用力は、全方向にお
いて同様に規定できる。The resistance moment about the axis is uniform in all directions. Therefore, the acting force can be similarly defined in all directions.

【０００９】本発明の基本的な特徴は、軸の曲げでなく
そのせん断変形を測定することにある。これにより、力
のてこ比を勘案しないで良いため有利となる。The basic feature of the present invention is to measure not the bending of the shaft but its shear deformation. This is advantageous because it is not necessary to consider the leverage of the force.

【００１０】軸に対する力の角度は、円弧に対する接線
上の成分から算出する。伸び測定片に対する力の角度
ｃ、測定されるか又は構造形態によって規定される、軸
とクランクとの間の角度ｂ並びに実際のクランク角ａか
ら、足し算によって、走者に結合された座標系に対する
力の角度を計算することができる。The angle of force with respect to the axis is calculated from the component on the tangent to the arc. From the angle c of the force on the elongation measuring piece, the angle b between the shaft and the crank, which is measured or defined by the structural form and the actual crank angle a, the force on the coordinate system coupled to the runner by addition The angle of can be calculated.

【００１１】伸び測定片をペダル軸上に配設することの
別の利点は、クランク及びクランク軸に比較してペダル
を簡単に交換できるため、車輪の後装備が簡単にできる
ことにある。Another advantage of arranging the elongation measuring piece on the pedal shaft is that the pedals can be easily replaced compared to the crank and the crankshaft, so that the wheel can be easily retrofitted.

【００１２】[0012]

【発明の実施の形態】以下に本発明の構成及び実施態様
を記載する。BEST MODE FOR CARRYING OUT THE INVENTION The constitution and embodiments of the present invention will be described below.

【００１３】競技用自転車の周期的な踏込み運動の間ク
ランクに加わる力の推移を認識する装置であって、ペダ
ル軸自身は、力測定要素として構成され、力測定要素に
よって供給された信号が増幅されてデジタル化され、所
属するクランク角は、角度発生器もしくは時間測定を介
して認識され、デジタル測定値が、計算評価−表示装置
に無線伝送されるようにしたものにおいて、力作用点
（軸受）と軸結合部（固定ねじ）との間においてペダル
軸に加わるせん断変形が、ペダル軸と直交する２つの方
向、好ましくは互に直交する該方向において、伸び測定
片によって測定され、軸に関する力の角度をそれからベ
クトル計算によって算出すると共に、この角度によっ
て、取付けによるクランク軸及びクランクに対する力の
方向を規定し、位置発生器についての時間測定又は角度
発生器を介して規定されるクランク角によって、走者に
結合された座標系に対するペダルへの力の角度を計算す
ることを特徴とする認識装置。A device for recognizing a change in force applied to a crank during a periodic stepping motion of a competition bicycle, wherein the pedal shaft itself is configured as a force measuring element, and a signal supplied by the force measuring element is amplified. It is digitized and the associated crank angle is recognized via an angle generator or a time measurement, and the digital measurement value is transmitted wirelessly to a calculation evaluation-display device, where the force application point (bearing ) And the shaft coupling part (fixing screw), the shear deformation applied to the pedal shaft is measured by the elongation measuring piece in two directions orthogonal to the pedal shaft, preferably in the directions orthogonal to each other, and the force on the shaft is measured. Then, the angle of is determined by vector calculation, and this angle defines the direction of the force applied to the crankshaft and the crank due to mounting, and By a crank angle defined via the time measurement or angle generator for vessel, recognition apparatus characterized by calculating the angle of the force on the pedal with respect to the coordinate system coupled to the runner.

【００１４】[0014]

【実施例】次に本発明の一実施態様を図面に基づいて一
層詳細に説明する。An embodiment of the present invention will now be described in more detail with reference to the drawings.

【００１５】左側及び右側の足踏みペダル側の両方の測
定装置は、同じ構造を有している。従って、左側のみに
ついて以下に説明する。ペダル軸１１に設けた伸び測定
半ブリッジ１、２、３、４は、２つのホイートストーン
ブリッジ１、３及び２、４として接続されるので、事実
上互に９０°の角度を含む２つの独立した方向において
せん断変形が記録される。伸び測定片は、長さがＰｉ＊
Ｄの１つの共通のはく片上に、Ｐｉ＊Ｄ／４の距離に着
座させることができる。このはく片は、軸上に取付ける
際には、所定の個所において軸の回りに巻付けられる。
このはく片は、信号増幅及び変換のための電子的構造部
分のための端子を含むことができる。The measuring devices on both the left and right foot pedal sides have the same construction. Therefore, only the left side will be described below. The extension measuring half bridges 1, 2, 3, 4 provided on the pedal shaft 11 are connected as two Wheatstone bridges 1, 3 and 2, 4 so that in effect two bridges containing 90 ° angles to each other. Shear deformation is recorded in independent directions. The elongation measuring piece has a length of Pi *
It can be seated on one common foil of D at a distance of Pi * D / 4. When mounted on the shaft, the foil is wrapped around the shaft at predetermined locations.
The foil can include terminals for electronic structures for signal amplification and conversion.

【００１６】マイクロコントローラ２１は、測定用給与
電圧を電子スイッチ２６によってオンにする。測定信号
増幅器６とブリッジとは、測定のために、それぞれ短時
間の間給電される。ブリッジの対角電圧は、増幅され、
Ａ／Ｄ変換器を介して読出される。The microcontroller 21 turns on the measuring supply voltage by an electronic switch 26. The measurement signal amplifier 6 and the bridge are each powered for a short time for the measurement. The diagonal voltage of the bridge is amplified,
It is read out via the A / D converter.

【００１７】クランクに固定されたＩＲ受信ダイオード
１６を固定送出ダイオード１５の変調されたＩＲ流が通
る際に、増幅器８によって増幅された信号は、マイクロ
コントローラ２１によって認識される。クランクの１回
転のための周期時間から、後続する周期の測定間隔が、
所定の角度値に対応して規定される。位置発生器を通過
すると、例えば１６測定から成る１測定系列が、周期持
続時間／１６の間隔で開始される。期待される時点まで
の踏込み周期の後に位置発生器を通過すると、その間に
記憶された測定値が、ＩＲ送出ダイオード１７を経て、
固定受信ダイオード１４に送出され、表示ユニット２５
に増幅器２０を経て送出され、新しい測定周期が開始さ
れる。The signal amplified by the amplifier 8 is recognized by the microcontroller 21 as the modulated IR flow of the fixed delivery diode 15 passes through the IR reception diode 16 fixed to the crank. From the cycle time for one revolution of the crank, the measurement interval of the following cycle is
It is defined corresponding to a predetermined angle value. Upon passing through the position generator, one measurement sequence, for example 16 measurements, is started with an interval of period duration / 16. After passing through the position generator after the stepping cycle up to the expected time, the measured value stored during that time passes through the IR sending diode 17,
It is sent to the fixed receiving diode 14, and the display unit 25
Via amplifier 20 and a new measurement cycle is started.

【００１８】ＩＲダイオード及びハウジングは、太陽光
線によるＩＲ受信ダイオードの照射（Blender）がデー
タ転送の間は生じえないように構成されている。The IR diode and the housing are constructed in such a way that the irradiation of the IR receiving diode by solar radiation (Blender) cannot occur during the data transfer.

【００１９】連続して踏んでいる間、周期の接続時間
は、ごくわずかしか変動せず、またクランクの角速度
は、システムの慣性のため、ほぼ一定になっているの
で、測定点の位置の誤差はわずかである。踏込みの中断
は、周期の接続が一定でなくなることによって確実に認
識される。左側と右側のペダル測定装置を１８０°ずら
せたことによって、データ伝送の時間的分離が得られる
ため、データ受信部は、只１つのチャンネルないし増幅
器２０しか必要としない。評価装置、マイクロコントロ
ーラ又はＰＣによって表示のための更に別の計算がなさ
れる。During the continuous stepping, the connection time of the cycle fluctuates only a little, and the angular velocity of the crank is almost constant due to the inertia of the system. Is small. Interruption of the stepping is certainly recognized by the non-constant connection of the cycle. By offsetting the left and right pedal measuring devices by 180 °, a time separation of the data transmission is obtained, so that the data receiving part requires only one channel or amplifier 20. Further calculations for the display are made by the evaluation device, the microcontroller or the PC.

【００２０】回転角ｂについての測定値は、クランクに
対して正規化された座標系に換算され、更に、位置発生
器の位置を勘案して、ドライバーに対し静止された座標
系に換算される。The measured value of the rotation angle b is converted into a coordinate system normalized with respect to the crank, and further into a coordinate system stationary with respect to the driver in consideration of the position of the position generator. .

【００２１】マイクロコントローラによって、力の測定
値及び角速度から、補助的に、効率及び熱量の消費量を
算出することができる。評価ユニットは、ＲＡＭ及びＥ
ＥＰＲＯＭを備えており、力の推移を記憶させることが
できる。２つの力の推移の差を計算し表示することがで
きる。これにより、全ての一定の力（例えば足の重量に
よる力）を消去する。これにより、足踏みの手法によっ
て生じた力のみを表示しうるため、有利となる。With the aid of the microcontroller, the efficiency and the calorific consumption can be calculated in a supplementary manner from the force measurement and the angular velocity. The evaluation unit is RAM and E
Equipped with an EPROM, it can store force changes. The difference between the two force transitions can be calculated and displayed. This eliminates all constant force (eg force due to the weight of the foot). This is advantageous because only the force generated by the stepping technique can be displayed.

【００２２】ＩＲダイオードによって伝送する代りに、
踏込み軸受のコイルによって、又は高周波の搬送周波数
によって直接に、走者の受信部にデータを伝送するよう
にしてもよい。Instead of transmitting by IR diode,
The data may be transmitted to the runner's receiver by the coil of the stepping bearing or directly by a high carrier frequency.

【００２３】踏込み周期の信号発生器は、対応するリー
ドスイッチ及びマグネットとして構成しても良い。The stepping-cycle signal generator may be configured as a corresponding reed switch and magnet.

【００２４】本発明は、以上説明した実施態様による使
用には限定されず、全ての種類のクランク駆動機構に適
用される。The invention is not limited to use according to the embodiments described above, but applies to all types of crank drive mechanisms.

【図面の簡単な説明】[Brief description of drawings]

【図１】図１は、踏込み情報系を組込み状態において示
すと共に、左側及び右側に力測定装置を備えたペダル１
２、作用する力Ｆ、クランク１０に対する接線方向成分
Ｆｔ及び直交方向成分Ｆｎ、位置発生器−測定データ受
信ユニット９に対するクランク角ａ、並びに、走者の視
野中の表示ユニットへのデータ導線２４を示す。FIG. 1 shows a pedal information system in a built-in state, and a pedal 1 equipped with force measuring devices on the left and right sides.
2, the acting force F, the tangential component Ft and the orthogonal component Fn to the crank 10, the crank angle a to the position generator-measurement data receiving unit 9 and the data conductor 24 to the display unit in the field of view of the runner. .

【図２】図２は、ペダル軸固定部１とペダル軸受２７と
の間において、ペダル軸１１に回転対称に取付けられた
伸び測定半ブリッジ１，２，３，４を示す。図２は、更
に、クランクについての伸び測定半ブリッジ１，３の間
の角度ｂ、測定ブリッジのすぐ近くに配された導電性は
く片１９への信号増幅及び信号変換のためのシリコンチ
ップ５、保護層２８、ペダル本体１２、接地端子、給与
電圧、位置発生器信号入力及びデータ信号出力を示す。FIG. 2 shows the extension measuring half bridges 1, 2, 3, 4 mounted rotationally symmetrically on the pedal shaft 11, between the pedal shaft fixing part 1 and the pedal bearing 27. FIG. 2 further shows the angle b between the extension measuring half bridges 1, 3 for the crank, the silicon chip 5 for signal amplification and signal conversion into a conductive foil piece 19 arranged in the immediate vicinity of the measuring bridge. , Protective layer 28, pedal body 12, ground terminal, supply voltage, position generator signal input and data signal output.

【図３】図３は、左側及び右側のペダル側、データ受信
部７、データ処理ユニット２５、ディスプレイ２２並び
にクランク１０、ペダル軸１１及びハウジング１３のた
めの、伸び測定半ブリッジ１，２，３，４，ＩＲ送出器
１５，１７及び受信ダイオード１４，１６によって取得
された電気信号を評価するためのフローを示す。FIG. 3 shows the extension measuring half bridges 1, 2, 3 for the left and right pedal side, the data receiving part 7, the data processing unit 25, the display 22 and the crank 10, the pedal shaft 11 and the housing 13. , 4, IR transmitters 15, 17 and receiving diodes 14, 16 show a flow for evaluating the electrical signals acquired.

【図４】図４は、ＩＲデータ受信ダイオード１４及び位
置送信ダイオード１５を備えた自転車フレームの位置発
生器−データ受信ユニット９と、ＩＲデータ送出ダイオ
ード１７及びクランク１０に配された位置受信ダイオー
ド１６、データ伝送の可能なクランクの角度範囲ｆ並び
に位置信号が伝送される角度範囲ｇを示す。FIG. 4 is a position generator-data receiving unit 9 of a bicycle frame with an IR data receiving diode 14 and a position transmitting diode 15, an IR data sending diode 17 and a position receiving diode 16 arranged on a crank 10. , An angular range f of the crank capable of data transmission and an angular range g of transmitting a position signal are shown.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 競技用自転車の周期的な踏込み運動の間
クランクに加わる力の推移を認識する装置であって、ペ
ダル軸自身は、力測定要素として構成され、力測定要素
によって供給された信号が増幅されてデジタル化され、
所属するクランク角は、角度発生器もしくは時間測定を
介して認識され、デジタル測定値が、計算評価−表示装
置に無線伝送されるようにしたものにおいて、 力作用点（軸受）と軸結合部（固定ねじ）との間におい
てペダル軸に加わるせん断変形が、ペダル軸と直交する
２つの方向、好ましくは互に直交する該方向において、
伸び測定片によって測定され、 軸に関する力の角度をそれからベクトル計算によって算
出すると共に、この角度によって、取付けによるクラン
ク軸及びクランクに対する力の方向を規定し、 位置発生器についての時間測定又は角度発生器を介して
規定されるクランク角によって、走者に結合された座標
系に対するペダルへの力の角度を計算することを特徴と
する認識装置。1. A device for recognizing the course of force applied to a crank during a cyclical stepping motion of a competition bicycle, the pedal shaft itself being configured as a force measuring element, the signal being supplied by the force measuring element. Is amplified and digitized,
The associated crank angle is recognized via an angle generator or time measurement, and the digital measurement values are transmitted wirelessly to the calculation evaluation-display device, where the force application point (bearing) and the shaft coupling ( The shearing deformation applied to the pedal shaft between the fixing screw) and the fixing screw is in two directions orthogonal to the pedal shaft, preferably in the directions orthogonal to each other,
Measured by an elongation measuring piece, the angle of the force with respect to the axis is then calculated by vector calculation and this angle defines the direction of the force with respect to the crankshaft and the crank by the mounting, the time measurement for the position generator or the angle generator. A recognition device, characterized in that the angle of the force on the pedal with respect to a coordinate system coupled to the runner is calculated by means of a crank angle defined via.
JP7239829A 1994-09-19 1995-09-19 Device for recognizing transition of force applied on crank during periodic pushing motion of bicycle Pending JPH08145824A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE9415162U DE9415162U1 (en) 1994-09-19 1994-09-19 Electronic device for determining pedaling force
DE9415162.8 1995-04-05
DE29507357.8 1995-04-05
DE29507357U DE29507357U1 (en) 1995-04-05 1995-04-05 Device for recording and displaying the pedal force curve on a bicycle

Publications (1)

Publication Number Publication Date
JPH08145824A true JPH08145824A (en) 1996-06-07

Family

ID=25962459

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7239829A Pending JPH08145824A (en) 1994-09-19 1995-09-19 Device for recognizing transition of force applied on crank during periodic pushing motion of bicycle

Country Status (2)

Country Link
JP (1) JPH08145824A (en)
FR (1) FR2724728B1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006526157A (en) * 2003-05-27 2006-11-16 フアーク・クーゲルフイツシエル・アクチエンゲゼルシヤフト Rolling bearings with polymer electronics
WO2012056510A1 (en) * 2010-10-25 2012-05-03 パイオニア株式会社 Pedaling rectification assistance device, pedaling rectification assistance method, program that assists rectification of pedaling, and medium that records program that assists rectification of pedaling
EP3364164A1 (en) * 2011-07-18 2018-08-22 Michael J. Grassi Torque sensor
CN110466664A (en) * 2018-05-11 2019-11-19 坎培诺洛有限公司 It is provided with the bicycle assembly parts of temperature-compensating stress/strain sensor
WO2020079575A1 (en) * 2018-10-15 2020-04-23 Tq-Systems Gmbh Control device and control method for an electric motor of an electric bicycle
US11377169B2 (en) 2018-05-11 2022-07-05 Campagnolo S.R.L. Bicycle crankarm and related crankset
US11401002B2 (en) 2018-05-11 2022-08-02 Campagnolo S.R.L. Bicycle crankarm having a stress/strain detector for a torque meter or a power meter, and methods for manufacturing and using the crankarm
JP2022544445A (en) * 2019-08-12 2022-10-19 ファヴェロ・エレクトロニクス・エッセ・エッレ・エッレ bicycle pedal
US11547004B2 (en) 2018-05-11 2023-01-03 Campagnolo S.R.L. Bicycle component made of composite material and related manufacturing process
US11597469B2 (en) 2018-05-11 2023-03-07 Campagnolo S.R.L. Bicycle crankarm provided with electric/electronic system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10044701C1 (en) * 2000-09-08 2002-05-23 Rainer Oberheim Device for determining the pedaling force
CA2319848A1 (en) 2000-09-21 2002-03-21 Jean-Yves Dube Proportional action propulsion system
FR2878328B1 (en) * 2004-11-24 2007-02-02 Look Cycle Internat Sa DYNAMOMETRIC CYCLE PEDAL
AU2008274881B2 (en) 2007-07-06 2010-06-24 Mark Fisher Crank arm with strain amplifier
EP2072387A1 (en) * 2007-12-20 2009-06-24 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno A cycling arrangement
CH700681B1 (en) * 2009-03-23 2013-04-15 Rmd Group Ag Apparatus for transmitting force between a foot and a bicycle pedal and method for measuring a force acting on a bicycle pedal in the direction of the pedal shaft power.
US9150278B2 (en) 2009-06-18 2015-10-06 Power Pedals Pty Ltd Pedal torque measurement
FI20095868A0 (en) 2009-08-24 2009-08-24 Polar Electro Oy Pedal Measurement
US20120330572A1 (en) 2009-11-28 2012-12-27 David John Longman Cyclic Cranked System Method and Related Devices
FR3005630B1 (en) 2013-05-14 2015-06-19 Sensix BICYCLE PEDAL WITH AT LEAST ONE SENSOR
TWI677667B (en) * 2018-09-27 2019-11-21 光旴科技股份有限公司 Crank with direct force measuring device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1358975A1 (en) * 1985-06-19 1987-12-15 Государственный институт физической культуры им.П.Ф.Лесгафта Apparatus for recording parameters of cyclistъs pedalling
DE3722728C1 (en) * 1987-07-09 1988-12-08 Ulrich Schoberer Work meter for a crank drive
DE3813792A1 (en) * 1988-04-23 1989-11-02 Frans Van Der Stel DEVICE FOR MEASURING AND EVALUATING PERFORMANCE DATA OF A BIKER
US5027303A (en) * 1989-07-17 1991-06-25 Witte Don C Measuring apparatus for pedal-crank assembly
US5165278A (en) * 1991-02-06 1992-11-24 Scientific Exercise Prescription, Inc. Cycle ergometer
US5257540A (en) * 1991-10-04 1993-11-02 Bower Grant L Portable apparatus for measuring force and power supplied to a pedal-driven cycle

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006526157A (en) * 2003-05-27 2006-11-16 フアーク・クーゲルフイツシエル・アクチエンゲゼルシヤフト Rolling bearings with polymer electronics
WO2012056510A1 (en) * 2010-10-25 2012-05-03 パイオニア株式会社 Pedaling rectification assistance device, pedaling rectification assistance method, program that assists rectification of pedaling, and medium that records program that assists rectification of pedaling
EP3364164A1 (en) * 2011-07-18 2018-08-22 Michael J. Grassi Torque sensor
CN110466664A (en) * 2018-05-11 2019-11-19 坎培诺洛有限公司 It is provided with the bicycle assembly parts of temperature-compensating stress/strain sensor
US11214331B2 (en) 2018-05-11 2022-01-04 Campagnolo S.R.L. Bicycle component provided with a temperature-compensated stress/strain sensor
US11377169B2 (en) 2018-05-11 2022-07-05 Campagnolo S.R.L. Bicycle crankarm and related crankset
US11401002B2 (en) 2018-05-11 2022-08-02 Campagnolo S.R.L. Bicycle crankarm having a stress/strain detector for a torque meter or a power meter, and methods for manufacturing and using the crankarm
US11547004B2 (en) 2018-05-11 2023-01-03 Campagnolo S.R.L. Bicycle component made of composite material and related manufacturing process
US11577801B2 (en) 2018-05-11 2023-02-14 Campagnolo S.R.L. Bicycle component provided with a temperature-compensated stress/strain sensor
US11597469B2 (en) 2018-05-11 2023-03-07 Campagnolo S.R.L. Bicycle crankarm provided with electric/electronic system
WO2020079575A1 (en) * 2018-10-15 2020-04-23 Tq-Systems Gmbh Control device and control method for an electric motor of an electric bicycle
JP2022544445A (en) * 2019-08-12 2022-10-19 ファヴェロ・エレクトロニクス・エッセ・エッレ・エッレ bicycle pedal

Also Published As

Publication number Publication date
FR2724728B1 (en) 1999-12-24
FR2724728A1 (en) 1996-03-22

Similar Documents

Publication Publication Date Title
JPH08145824A (en) Device for recognizing transition of force applied on crank during periodic pushing motion of bicycle
US11885702B2 (en) Apparatus, system and method for power measurement
US6418797B1 (en) Apparatus and method for sensing power in a bicycle
US8844377B2 (en) System for a pedaling torque measurement device
US8965610B2 (en) Pedal assist sensor
CN109366480A (en) A kind of dynamoelectric controlled integrated joint of robot mould group of high integration
US7408447B2 (en) Wireless, passive wheel-speed and cadence detection system
US9739608B2 (en) Rotation sensor for an electrical bike pedal
DE3855182D1 (en) PERFORMANCE METER FOR A CRANKSHAFT
US20130049445A1 (en) Bicycle rear hub
CN108692844B (en) Electric flywheel torsion measuring device
EP2562523A1 (en) Input performance measurement system for a bicycle
CA2311535A1 (en) Correction of blood pressure measurements in invasive liquid-filled systems
CN206623955U (en) Bicycle use chain wheel formula torque sensor
US11325673B2 (en) Power sensing system for bicycles
EP1357351A3 (en) Angle and torque detection apparatus with malfunction detection system
CN210503054U (en) Torque sensor module and electric bicycle based on same
EP1050747A3 (en) Device for determining a volume of a gas stream
WO2020042811A1 (en) Center-shaft type torque sensor of electrically power-assisted bicycle
EP1484585A3 (en) Coriolis flowmeter with digital control system
CA2500812A1 (en) System for detecting the rotational motion of a shaft
RU2003136633A (en) METHOD FOR DETERMINING POWER FACTORS OPERATING ON A WHEEL AND DEVICE FOR ITS IMPLEMENTATION
CN117657350A (en) Tower foundation torque induction device and electric bicycle
SU667427A1 (en) Device for measuring pressure of current collector upon contact wire
JPH10267625A (en) Device for detecting shape of snow accretion on electric cable