FI93578B - Measuring device when calculating power and energy - Google Patents

Measuring device when calculating power and energy Download PDF

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Publication number
FI93578B
FI93578B FI934770A FI934770A FI93578B FI 93578 B FI93578 B FI 93578B FI 934770 A FI934770 A FI 934770A FI 934770 A FI934770 A FI 934770A FI 93578 B FI93578 B FI 93578B
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FI
Finland
Prior art keywords
force
power
spring
movement
power transmission
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Application number
FI934770A
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Finnish (fi)
Swedish (sv)
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FI93578C (en
FI934770A0 (en
Inventor
Kalevi Artturi Nieminen
Original Assignee
Kalevi Artturi Nieminen
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.)
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Publication date
Application filed by Kalevi Artturi Nieminen filed Critical Kalevi Artturi Nieminen
Priority to FI934770A priority Critical patent/FI93578C/en
Publication of FI934770A0 publication Critical patent/FI934770A0/en
Priority to PCT/FI1994/000465 priority patent/WO1995011626A1/en
Priority to AU78570/94A priority patent/AU7857094A/en
Priority to EP94929567A priority patent/EP0725595A1/en
Application granted granted Critical
Publication of FI93578B publication Critical patent/FI93578B/en
Publication of FI93578C publication Critical patent/FI93578C/en

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    • 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
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K19/00—Cycle frames
    • B62K19/30—Frame parts shaped to receive other cycle parts or accessories
    • B62K19/34—Bottom brackets
    • 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

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

Description

9357893578

MITTAUSJÄRJESTELY TEHON JA ENERGIAN LASKENNASSAMEASUREMENT ARRANGEMENT IN POWER AND ENERGY CALCULATION

Keksinnön kohteena on mittausjärjestely, jota käyttäen saadaan mitatuksi joustavan tehonsiirtoelimen kuten ketjun, erilaisten hihnojen, köyden tai vaijerin välittämän tehon ja energian laskennassa tarvittava, tehonsiirtoelimeen vaikuttava, sen suuntainen voima. Keksintöä voidaan soveltaa mm 5 polkupyörään, pyöräilijän poikiessaan käyttämän tehon ja energian mittaukseen. Kuten mekaniikasta on tunnettua, on: Ϊ2.The invention relates to a measuring arrangement by means of which the force in the direction of the power transmission member acting in the calculation of the power and energy transmitted by a flexible power transmission member such as a chain, various belts, a rope or a wire can be measured. The invention can be applied, for example, to 5 bicycles, for measuring the power and energy used by a cyclist when calving. As is known from mechanics, it is: Ϊ2.

P = F>cv ja P = M*co sekä W = f Pxdt, missä P = teho tf W = energia 10 F = voima v = voiman nopeus sen suunnassa M = momenttiP = F> cv and P = M * co and W = f Pxdt, where P = power tf W = energy 10 F = force v = speed of force in its direction M = moment

Uj - momentin kulmanopeus t = aika 15 Esim. ketjun siirtämä teho saadaan lasketuksi kun tunnetaan ketjun suuntainen voima ja ketjun nopeus. Nopeus- ja voima-anturien antamat sähköiset viestit kerrotaan keskenään elektronisissa laskentapiireissä ja näin saadaan tehon arvo. Integrointipiirissä lasketaan tiettynä aikana kulunut teho. Lasketut arvot voidaan ajon aikana esittää ohjaustankoon sijoitetul-20 la näytöllä. Ketjun tms välittämän tehon ja energian laskentaan sopivia järjestelyjä on esitetty aikaisemmin patenttiasiakirjoissa kuten esim. USA patentti 4,141,245 ja saksalaiset asiakirjat DE 3330525 A 1 ja DT 2524605 A 1. Niiden käyttö mm polkupyörissä tulisi kuitenkin kalliiksi ja siksi hakija esittää aikaisemmista poikkeavaa, yksinkertaisempaa rat-25 kaisua. Siinä toisen pyörän akseli tai polkupyörän ollessa kyseessä sen keskiö on kiinnitetty "uivasti" siten, että se pääsee tekemään pienen liikkeen ketjuvoiman vaikutussuunnassa.Uj - angular velocity t = time 15 For example, the power transmitted by the chain can be calculated when the force along the chain and the speed of the chain are known. The electronic messages given by the speed and force sensors are multiplied in electronic computing circuits to obtain a power value. The integrated circuit calculates the power consumed during a certain time. The calculated values can be displayed while driving on the handlebar display. Arrangements suitable for calculating the power and energy transmitted by a chain or the like have previously been described in patent documents such as U.S. Pat. No. 4,141,245 and German documents DE 3330525 A1 and DT 2524605 A1. However, their use in bicycles would be expensive and therefore the applicant proposes a different, simpler ruling. In it, the axle of the second wheel or, in the case of a bicycle, its center is fixed "floating" so that it can make a small movement in the direction of the chain force.

Keksinnölle on tunnusomaista se, mitä on esitetty patenttivaatimusten tunnusosassa.The invention is characterized by what is set out in the preamble of the claims.

; .· 30 Keksinnön tärkeimpänä etuna voidaan pitää sen yksinkertaista ja halpaa ·“· · rakennetta, mikä mahdollistaa sen käyttämisen "jokamiehen" laitteissa.; The main advantage of the invention is its simple and inexpensive structure, which makes it possible to use it in "every man's" devices.

Seuraavassa keksintöä selitetään yksityiskohtaisesti piirustusten avulla. Fig. 1 esittää sivusta nähtynä keksinnön erästä sovellutusta asennettuna polkupyörään. Siinä keskiö (3) pääsee liukumaan johteiden (7) varassa.In the following, the invention will be explained in detail with the aid of drawings. Fig. 1 shows a side view of an embodiment of the invention mounted on a bicycle. In it, the hub (3) can slide on the guides (7).

35 Jousi (10) vastustaa liikettä. Fig. 2 esittää keskiötä (3) suunnasta A35 The spring (10) resists movement. Fig. 2 shows the center (3) from the direction A

2 93578 nähtynä. Fig. 3 näyttää sovellutuksen, missä keskiö riippuu heilurimai-sesti laattavipujen (6) varassa. Myös siinä on puristusjousi (10). Fig. 4 esittää Fig. 3 suunnasta B nähtynä. Fig. 5 esittää keskiötä (3) asennettuna sen ylä- ja alapuolella olevien liukujohteiden (7) varaan. Liikettä 5 vastustaa lautasjouset (11). Fig. 6 esittää sovellutusta, missä keskiö on ripustettu vääntöjousen (9) varaan vipujen (6) välityksellä. Fig. 7 esittää Fig. 3 tapaista sovellutusta, jossa jousena on taivutusjousi tai -jouset (12).2,93578 as seen. Fig. 3 shows an application where the hub pendulously hangs on the plate levers (6). It also has a compression spring (10). Fig. 4 shows Fig. 3 as seen from direction B. Fig. 5 shows the hub (3) mounted on the slide guides (7) above and below it. Movement 5 is resisted by disc springs (11). Fig. 6 shows an embodiment in which the hub is suspended on a torsion spring (9) by means of levers (6). Fig. 7 shows an embodiment similar to Fig. 3, in which the spring is a bending spring or springs (12).

Pyörää poljettaessa siirtyy poikimilla aikaansaatu vääntömomentti pyörit-10 tämään takapyörää ketjun välityksellä. Pyörän keskiöön (3) kohdistuu ket-juvoiman suuruinen tukivoima. Kun tämä voima mitataan ja se kerrotaan ketjun nopeudella, tulee tulokseksi poljettaessa käytetty teho. Keskiöön kohdistuva ketjuvoiman suuruinen tukivoima on suhteessa keskiön ripustus-mekanismin sallimaan ketjun suuntaiseen siirtymään, jota vastustetaan 15 jousijärjestelyn avulla. Kun jousen tai jousien jousivakio tunnetaan, voidaan mittaamalla keskiön siirtymä selvittää siihen kohdistuvan voiman suuruus. Keskiön siirtymän mittaamiseen käytetään jotakin ennestään tunnettua, sähköisen viestin antavaa menetelmää. Myös ketjun nopeus mitataan jollakin jo tunnetulla menetelmällä.When pedaling the wheel, the torque produced by the calipers rotates-10 to this rear wheel via a chain. A support force equal to the chain force is applied to the wheel hub (3). When this force is measured and multiplied by the speed of the chain, the result is the power used for pedaling. The support force equal to the chain force applied to the hub is proportional to the chain displacement allowed by the hinge suspension mechanism, which is resisted by the spring arrangement. Once the spring constant of the spring or springs is known, the magnitude of the force applied to it can be determined by measuring the displacement of the center. To measure the displacement of the hub, some previously known method of giving an electronic message is used. The speed of the chain is also measured by some already known method.

20 Keskiön (3) kannatinvariaatioina voidaan käyttää erilaisia koneenrakennuksesta tunnettuja johde- ja vipurakenteita. Fig. 1, 3, 5 ja 6 esittävät niistä vain esimerkkejä.20 Various guide and lever structures known from mechanical engineering can be used as support variations for the hub (3). Figs. 1, 3, 5 and 6 show only examples.

Mittausjousina voidaan käyttää erilaisia jousia, kuten lieriöjousia (veto- ja puristus-), lautasjousia, rengasjousia, vääntö- ja taivutusjou-V 25 siä, kumi- ja muovityynyjä tms. Keskiöön vaikuttava voima saadaan myös mitatuksi käyttämällä Fig. 7 tapaisessa sovellutuksessa venymäliuskaa taivutus- tai leikkausvoiman mittaukseen.Various springs can be used as measuring springs, such as cylindrical springs (tension and compression), disc springs, ring springs, torsion and bending springs V 25, rubber and plastic pads, etc. The force acting on the center can also be measured using a stretching strip in an application such as Fig. 7. or shear force measurement.

Paristosta, akusta tai dynamosta virtansa saava laskenta- ja näyttöyksik-kö, jossa on tarvittavat säätö- ja kalibrointimahdollisuudet, voidaan 30 kiinnittää esim. pikalukituksella ohjaustankoon.The calculation and display unit, which is powered by a battery, accumulator or dynamo and has the necessary adjustment and calibration possibilities, can be attached to the handlebar, e.g.

Edellä keksintöä on käsitelty lähinnä sovellettuna polkupyörään. Sitä on kuitenkin mahdollisuus soveltaa myös monenlaisessa, joustavan tehonsiirtoelimen, kuten ketjun, erilaisten hihnojen, köyden ja vaijerin välityksellä tapahtuvassa voimansiirrossa. Esitettyjä rakenneratkaisuja voidaan 35 varioida patenttivaatimusten määrittämän keksinnöllisen ajatuksen puitteissa.The invention has been discussed above mainly applied to a bicycle. However, it can also be applied to a wide variety of power transmissions via a flexible power transmission member, such as a chain, various belts, a rope and a wire. The presented structural solutions can be varied within the scope of the inventive idea defined by the claims.

IlIl

Claims (4)

1. Arrangemang för mätning av effekt och energi som överförs mellan tvä hjul (17,19) av ett elastiskt effekttransmissionsor-gan säsom en kedja (18), remmar, Iina och vajer, vid vilket arrangemang effekten räknas som produkt av den kraft som riktas mot effekttransmissionsorganet och av dess hastighet, och ener-gin räknas genom integrering av effekten i förhällande till tid, kännetecknat av att det ena hjulets axel (3) fär röra sig bromsad av en fjäder eller fjädrar (10, 11, 12) eller en fjäder-kudde i samma riktning med den av effekttransmissionsorganet OverfOrda kraften och i relation till nämnda kraft, sä att kraf-ten mats med hjalp av nämnda rörelse.1. Arrangements for measuring power and energy transmitted between two wheels (17,19) by an elastic power transmission means such as a chain (18), belts, ropes and cables, in which arrangement the power is counted as the product of the force directed against the power transmission means and its speed, and the energy is calculated by integrating the power with respect to time, characterized in that the axis (3) of one wheel is allowed to move by a spring or springs (10, 11, 12) or a spring. -cushion in the same direction with the force transmitted by the power transmission means and in relation to said force, so that the force is supplied with the aid of said movement. 2. Mätningsarrangemang enligt patentkrav 1, kännetecknat av att den axel som rör sig parallellt med den av krafttransmis-sionsorganet (18) OverfOrda kraften bromsad av en fjäder eller fjädrar (10, 11,12) eller en fjäderkudde är cykelns centrumaxel (3) och dess förskjutning i kedjekraftens riktning är relativ till de krafter som i varje enskilt fall riktas mot pedalerna, varvid krafternas storlek kan mätäs med hjalp av nämnda rörelse.Measurement arrangement according to claim 1, characterized in that the axis moving parallel to that transmitted by the power transmission means (18) by a spring or springs (10, 11, 12) or a spring cushion is the center axis (3) of the bicycle. its displacement in the direction of the chain force is relative to the forces directed in each case to the pedals, the magnitude of the forces being measured by means of said movement. 3. Mätningsarrangemang enligt patentkrav 1, kännetecknat av att axelns (3) rörelse möjliggörs med glidgejder (4,5,7).Measurement arrangement according to claim 1, characterized in that the movement of the shaft (3) is made possible with sliding guides (4,5,7). 4. Mätningsarrangemang enligt patentkrav 1, kännetecknat av att axelns (3) rörelse möjliggörs med hjälp av bärspakar (6) ...eller ett bärspaksystem och geometrin beaktas i kalkylerna. - · € II;Measurement arrangement according to claim 1, characterized in that the movement of the shaft (3) is made possible by means of support levers (6) ... or a support lever system and the geometry is taken into account in the calculations. - · € II;
FI934770A 1993-10-28 1993-10-28 Measuring device when calculating power and energy FI93578C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI934770A FI93578C (en) 1993-10-28 1993-10-28 Measuring device when calculating power and energy
PCT/FI1994/000465 WO1995011626A1 (en) 1993-10-28 1994-10-17 Arrangement for the measurement of mechanical power and work
AU78570/94A AU7857094A (en) 1993-10-28 1994-10-17 Arrangement for the measurement of mechanical power and work
EP94929567A EP0725595A1 (en) 1993-10-28 1994-10-17 Arrangement for the measurement of mechanical power and work

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI934770A FI93578C (en) 1993-10-28 1993-10-28 Measuring device when calculating power and energy
FI934770 1993-10-28

Publications (3)

Publication Number Publication Date
FI934770A0 FI934770A0 (en) 1993-10-28
FI93578B true FI93578B (en) 1995-01-13
FI93578C FI93578C (en) 1995-04-25

Family

ID=8538863

Family Applications (1)

Application Number Title Priority Date Filing Date
FI934770A FI93578C (en) 1993-10-28 1993-10-28 Measuring device when calculating power and energy

Country Status (4)

Country Link
EP (1) EP0725595A1 (en)
AU (1) AU7857094A (en)
FI (1) FI93578C (en)
WO (1) WO1995011626A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999060927A1 (en) * 1998-05-25 1999-12-02 Kalevi Artturi Nieminen Measuring arrangement in a training device for muscular strength

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629516B2 (en) * 1976-07-01 1979-08-30 Keiper Trainingsysteme Gmbh & Co, 6760 Rockenhausen Ergometer
FR2394790A1 (en) * 1977-06-17 1979-01-12 Delorme Jacques MEASURING DEVICE FOR BICYCLES OR ANY MACHINE MOVED BY A CRANKSET-TRANSMISSION CHAIN ASSEMBLY
US4423630A (en) * 1981-06-19 1984-01-03 Morrison Thomas R Cyclic power monitor
DE3150149A1 (en) * 1981-12-18 1983-06-30 Sachs Systemtechnik Gmbh, 8720 Schweinfurt Vehicle propelled by muscle power
DE3813681A1 (en) * 1987-04-22 1988-11-17 Quindt Ortrude Dr Ergometer

Also Published As

Publication number Publication date
EP0725595A1 (en) 1996-08-14
WO1995011626A1 (en) 1995-05-04
FI93578C (en) 1995-04-25
FI934770A0 (en) 1993-10-28
AU7857094A (en) 1995-05-22

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