NL2012425B1 - System and home trainer comprising a disk and a detector for monitoring at least one kinematic parameter of said disk. - Google Patents

System and home trainer comprising a disk and a detector for monitoring at least one kinematic parameter of said disk. Download PDF

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Publication number
NL2012425B1
NL2012425B1 NL2012425A NL2012425A NL2012425B1 NL 2012425 B1 NL2012425 B1 NL 2012425B1 NL 2012425 A NL2012425 A NL 2012425A NL 2012425 A NL2012425 A NL 2012425A NL 2012425 B1 NL2012425 B1 NL 2012425B1
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area
disc
detector
disk
boundary line
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NL2012425A
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Dutch (nl)
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NL2012425A (en
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Tacx Simon
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Tacx Roerend En Onroerend Goed B V
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/249—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
    • G01D5/2497—Absolute encoders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
    • A61H1/02—Stretching or bending or torsioning apparatus for exercising
    • A61H1/0214—Stretching or bending or torsioning apparatus for exercising by rotating cycling movement
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/773—Spiral profiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/70—Position sensors comprising a moving target with particular shapes, e.g. of soft magnetic targets
    • G01D2205/77—Specific profiles
    • G01D2205/777—Whorl-shaped profiles

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Pain & Pain Management (AREA)
  • Rehabilitation Therapy (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Description

System and home trainer comprising a disk and a detector for monitoring at least one kinematic parameter of said disk
The invention relates to a system comprising a disk and a detector for monitoring at least one kinematic parameter of said disk, particularly a disk mounted on or forming part of a break wheel of a home trainer which is intended to be placed into frictional engagement with a back wheel of a bicycle, wherein the disk is provided with a predefined marking and wherein the detector is arranged for monitoring the said predefined marking of the disk.
From US 4,866,269 an optical shaft position and speed sensor is known comprising an optical detector and an optical source for emitting light to the shaft. The shaft is provided with an encoder disk for rotation with the shaft. The disk has a series of markings with different reflection properties for the emitted light. The variation in light levels of the reflected light is measured with the optical detector to determine the position and speed of the shaft. This known shaft position and speed sensor has limited resolution due to the limited possibilities to apply different light levels representing different angular positions of the shaft. Moreover it requires accurate manufacturing and quality control to realize that the different light levels can be reliably manufactured and can be reliably measured. Correspondingly the manufacturing costs are relatively high.
It is an object of the invention to provide a simple and reliable means to enable that speed and position of a rotatable disc forming part of an arbitrary system or forming part of a home trainer can be simultaneously measured.
It is another object of the invention to provide such means at low cost.
According to the invention a system and/or home trainer is proposed, having a rotatable disc and a detector, wherein the disk is provided with a predefined marking and wherein the detector is arranged for monitoring the said predefined marking of the disk and in which the predefined marking partitions the disk in at least a first region and a second region, which regions together cover without interruption an entire circular r ) surface area of the disk located between a first inner diameter and a second outer diameter delimiting said area. Although the invention is not restricted thereto, it is particularly well-suited to be applied in a home trainer comprising a break wheel which is intended to be placed into frictional engagement with a back wheel of a bicycle, and comprising a disk mounted on or forming part of said break wheel, having a detector for monitoring at least one kinematic parameter of said disk, wherein the disk is provided with a predefined marking and wherein the detector is arranged for monitoring the said predefined marking of the disk. The detector is then preferably mounted on a magnet or on a slide onto which also said magnet is mounted which is used for adjustably breaking the rotatable disk.
By arranging that the predefined marking partitions the disk in at least a first region and a second region, which regions together cover without interruption an entire circular surface area of the disk located between a first inner diameter and a second outer diameter delimiting said area, it is possible to simply and reliably and with high-resolution measure simultaneously both speed of the disk and position of the detector, and correspondingly to measure the position of the magnet that is used to break the disk.
In one preferred embodiment the first region and the second region define a single uninterrupted virtual borderline delimiting the first region and the second region from each other .
It is found that the benefits of the invention are particularly well attainable by arranging that the first region and the second region define a virtual borderline delimiting the first region and the second region from each other, and wherein each position on said virtual borderline has a predefined and unique distance with respect to a center of rotation of said disk such that there are no two positions on the borderline having the same distance to the center of rotation of the disk, and that in each combination of two positions on the virtual borderline having different distances with respect to said center'of rotation simultaneously also exhibit different angular positions with reference to a preestablished line of symmetry delimiting an upper half and a lower half of said surface area of the disk.
In a suitable embodiment of the system according to the invention the first region and the second region define a virtual borderline delimiting the first region and the second region from each other, wherein said virtual borderline is shaped as a spiral curve starting at the first inner diameter of the circular surface area of the disk and spiraling with increasing diameter towards the second outer diameter of the circular surface area of the disk. Preferably the said spiral curve is a so-called Archimedean spiral.
Desirably the detector for monitoring the said predefined marking of the disk is arranged to scan the disk at a distance from the center of rotation of said disk and within said disk's circular surface area delimited by the first inner diameter and the second outer diameter of said surface area.
Preferably the detector connects to a timing and/or calculating device to record the time during which the detector detects the first region and/or the second region. For one thing it is then possible that the timing and/or calculating device is arranged to determine the position at which the detector scans the disk based on the time during which the detector detects the first region and/or the second region during the disk's revolution around its center of rotation. This is particularly suitable for monitoring the position of a slidable magnet with reference to the disk, by arranging that the detector is mounted in a way that it's position corresponds one-to-one to the position of the magnet.
By recording the time during which the detector detects the first region and/or the second region during the disk's revolution, it is then also possible that the detector connects to the timing and/or calculating device for counting the number of revolutions per unit of time of the disk based on the detected transitions in the detector sequentially detecting the first region and the second region. Consequently in this simple arrangement both speed of the disk and position of the magnet relative to the disk can be measured reliably and with high accuracy at low cost which is highly desirable, particularly when applied in a home trainer.
The system of the invention can be applied for the control of rotating shafts of machinery such as disclosed in US 4,866,269. Other feasible application options can be derived from JPH 03189563; JPH 01170812; or JPH 03189563.
As mentioned hereinabove the invention can particularly well be applied in a home trainer having a rotatable disc and a detector for detecting kinematic parameters of the disk, wherein the disk and the detector are embodied with one or more of the features as discussed hereinabove. In one preferable embodiment of such a home trainer it comprises a timing and/or calculating device to determine a cadence of a user of said home trainer based on a variance in the number of revolutions per unit of time of the disk as counted with the detector based on markings provided on the rotatable disc.
The invention will hereinafter be further elucidated with reference to the drawing of a nonlimiting exemplary embodiment of a home trainer according to the invention. It is however expressly remarked that the invention is not restricted to the embodiment and application of the invention with a home trainer but can be applied to any arbitrary system in accordance with the appended claims.
In the drawing: -figure 1 shows a home trainer; -figure 2 shows the home trainer of figure 1 completed with a bicycle mounted in the home trainer; -figure 3 shows in a top view a break wheel and a detector forming part of the home trainer of figures 1 and 2; and -figure 4 shows a side view of the break wheel and detector of figure 3.
Whenever in the figures the same reference numerals are applied, these numerals refer to the same parts.
Referring to figure 1 and in particular to figure 2, a home trainer 1 is shown comprising a break wheel 2 which is intended to be placed into frictional engagement with a back wheel 3 of a bicycle 4. The break wheel 2 comprises a disk 5 mounted on or forming part' of said break wheel 2.
In the detailed view provided by figure 3 and figure 4 it is shown that the disk 5 cooperates with a detector 6 for monitoring at least one kinematic parameter of said disk 5. In connection there with and in accordance with the invention the disk 5 is provided with a predefined marking 7, 8 as can be best seen in figure 4, whereby the detector 6 is arranged for monitoring the said predefined marking 7, 8 of the disk 5. Fig- ure 4 clearly shows that the predefined marking 7, 8 partitions the disk 5 in at least a first region 7 and a second region 8, which regions 7, 8 together cover without interruption an entire circular surface area 10 of the disk 5 located between a first inner diameter 11 and a second outer diameter 12 delimiting said area 10. As is also clearly shown in figure 4 the first region 7 and the second region 8 define a single uninterrupted virtual borderline 9 delimiting the first region 7 and the second region 8 from each other.
It is desirable that each position on said virtual borderline 9 has a predefined and unique distance with respect to a center of rotation 13 of said disk 5, such that there are no two positions on the borderline 9 having the same distance to the center of rotation 13 of the disk 5, and that in each combination of two positions on the virtual borderline 9 having different distances with respect to said center of rotation 13 simultaneously also exhibit different angular positions with reference to a preestablished line of symmetry 14 delimiting an upper half 15 and a lower half 16 of said surface area 10 of the disk 5.
As can be seen in figure 4 the virtual borderline is preferably shaped as a spiral curve 9 starting at the first inner diameter 11 of the circular surface area 10 of the disk 5 and spiraling with increasing diameter towards the second outer diameter 12 of the circular surface area 10 of the disk 5. The shown spiral curve is a so-called Archimedean spiral.
From figure 3 it is clear that the detector 6 for monitoring the predefined marking of the disk 5 is arranged to scan the disk 5 at a distance from the center of rotation 13 of said disk 5. Further this distance must be within said disk's circular surface area 10 which is shown in figure 4 to be delimited by the first inner diameter 11 and the second outer diameter 12 of said surface area 10.
Figure 3 also schematically shows that the detector 6 connects to a timing and/or calculating device 17 which is arranged to record the time during which the detector 6 detects the first region 7 and/or the second region 8 in the surface area 10 of the disk 5. Accordingly and based on these measurements the timing and/or calculating device 17 is arranged to determine the position at which the detector 6 scans the disk 5 using the time during which the detector 6 detects the first region 7 and/or the second region 8 during the disk's revolution around its center of rotation 13. By arranging that the detector 6 is mounted on a slide of a movable magnet M or directly on the magnet M, the measured position of the detector 6 corresponds directly to the position of the magnet M relative to the rotatable disk 5. The detector 6 thus measures the position of the magnet M in relation to the disk 5. At the same time the detector 6 is connected to the timing and/or calculating device 17 for counting the number of revolutions per unit of time of the disk 5 based on the detected transitions from the first region 7 to the second region 8 or vice versa, that the detector 6 sequentially detects. In this way the number of revolutions of the disk 5 are simultaneously measured with the measurement of the position of the magnet M relative to the disk 5.
In a preferable embodiment the timing and/or calculating device 17 determines further a cadence of a user of the home trainer based on a variance in the counted number of revolutions per unit of time of the disk 5.
Particularly suitable means to be applied in connection with the invention are that the detector 6 is arranged as an optical detector, and that the first region 7 and second region 8 on the surface 10 of the disk 5 exhibit different light reflection properties. The optical detector 6 can then simply measure the presence of either the first region 7 or the second region 8 by detecting the level of light reflected by the surface area 10 of the disk 5. Other means of providing markings to the first region 7, second region 8 and detection means for detecting such markings are however equally applicable. It is for instance feasible to apply a magnetic markings and magnetic detection means.
Although the invention has been discussed in the foregoing with reference to an exemplary embodiment of the apparatus of the invention, the invention is not restricted to this particular embodiment which can be varied in many ways without departing from the gist of the invention. The discussed exemplary embodiment shall therefore not be used to construe the appended claims strictly in accordance therewith. On the contrary the embodiment is merely intended to explain the wording of the appended claims without intent to limit the claims to this exemplary embodiment. The scope of protection of the invention shall therefore be construed in accordance with the appended claims only, wherein a possible ambiguity in the wording of the claims shall be resolved using this exemplary embodiment .

Claims (22)

1. Systeem omvattende een schijf (5) en een detector (6) voor het monitoren van ten minste één kinematische parameter van genoemde schijf (5), in het bijzonder een schijf (5) gemonteerd op of deel vormend van een remwiel van een hometrainer (1) welke beoogd is om in wrijvingscontact te plaatsen met een achterwiel (3) van een fiets (4), waarbij de schijf (5) voorzien is van een vooraf bepaalde markering (7, 8) en waarbij de detector (6) ingericht is voor het monitoren van genoemde vooraf bepaalde markering (7, 8) van de schijf (5), met het kenmerk, dat de vooraf bepaalde markering (7, 8) de schijf verdeelt in ten minste een eerste gebied (7) en een tweede gebied (8), welke gebieden (7, 8) tezamen zonder onderbreking een volledig circulair oppervlaktegebied (10) van de schijf bedekken dat ligt tussen een eerste binnendiameter (11) en een tweede buitendiameter (12) die genoemd gebied (10) begrenzen .A system comprising a disk (5) and a detector (6) for monitoring at least one kinematic parameter of said disk (5), in particular a disk (5) mounted on or forming part of a brake wheel of an exercise bike (1) which is intended to be in frictional contact with a rear wheel (3) of a bicycle (4), wherein the disc (5) is provided with a predetermined marking (7, 8) and wherein the detector (6) is arranged is for monitoring said predetermined marking (7, 8) of the disc (5), characterized in that the predetermined marking (7, 8) divides the disc into at least a first area (7) and a second region (8), which regions (7, 8) together, without interruption, cover a fully circular surface area (10) of the disc that lies between a first inner diameter (11) and a second outer diameter (12) that define said area (10). 2. Systeem volgens conclusie 1, met het kenmerk, dat het eerste gebied (7) en het tweede gebied (8) een enkele ononderbroken virtuele grenslijn (9) bepalen die het eerste gebied (7) en het tweede gebied (8) van elkaar afgrenzen.System according to claim 1, characterized in that the first area (7) and the second area (8) define a single continuous virtual boundary line (9) that separates the first area (7) and the second area (8) from each other boundaries. 3. Systeem volgens conclusie 1 of 2, met het kenmerk, dat het eerste gebied (7) en het tweede gebied (8) een virtuele grenslijn (9) bepalen die het eerste gebied (7) en het tweede gebied (8) van elkaar afgrenzen, waarbij iedere positie op genoemde virtuele grenslijn (9) een vooraf bepaalde en unieke afstand bezit met betrekking tot een draaipunt (13) van genoemde schijf (5) zodanig dat er geen twee posities op de grenslijn (9) bestaan met dezelfde afstand tot het draaipunt (13) van de schijf (5), en dat iedere combinatie van twee posities op de virtuele grenslijn (9) die verschillende afstanden ten opzichte van genoemd draaipunt (13) bezitten tegelijkertijd tevens verschillende hoekposities innemen met betrekking tot een vooraf bepaalde symmetrielijn (14) die een bovenhelft (15) en een onderhelft (16) van genoemd oppervlaktegebied (10) van de schijf (5) begrenst.System according to claim 1 or 2, characterized in that the first area (7) and the second area (8) define a virtual boundary line (9) that separates the first area (7) and the second area (8) from each other boundaries, wherein each position on said virtual boundary line (9) has a predetermined and unique distance with respect to a pivot point (13) of said disc (5) such that there are no two positions on the boundary line (9) with the same distance to the pivot point (13) of the disk (5), and that any combination of two positions on the virtual boundary line (9) that have different distances from said pivot point (13) also simultaneously take different angular positions with respect to a predetermined symmetry line (14) bounding an upper half (15) and a lower half (16) of said surface area (10) of the disc (5). 4. Systeem volgens één der conclusie 1 of 3, met het kenmerk, dat het eerste gebied (7) en het tweede gebied (8) een virtuele grenslijn (9) bepalen die het eerste gebied (7) en het tweede gebied (8) van elkaar afgrenzen, waarbij genoemde virtuele grenslijn (9) gevormd is als een spiraalcurve startend bij de eerste binnendiameter (11) van het circulaire oppervlaktegebied (10) van de schijf (5) en met een toenemende diameter spiraliseert naar de tweede buitendiameter (12) van het circulaire oppervlaktegebied (10) van de schijf (5).A system according to any one of claim 1 or 3, characterized in that the first area (7) and the second area (8) define a virtual boundary line (9) that the first area (7) and the second area (8) from each other, said virtual boundary line (9) being formed as a spiral curve starting at the first inner diameter (11) of the circular surface area (10) of the disc (5) and spiraling with increasing diameter to the second outer diameter (12) of the circular surface area (10) of the disc (5). 5. Systeem volgens conclusie 4, met het kenmerk, dat de genoemde spiraalcurve een zogeheten Archimedes-spiraal is.System according to claim 4, characterized in that said spiral curve is a so-called Archimedes spiral. 6. Systeem volgens één der voorgaande conclusies 1-5, met het kenmerk, dat de detector (6) voor het monitoren van genoemde vooraf bepaalde markering van de schijf (5) is ingericht voor het'scannen van de schijf (5). op een afstand van het draaipunt (13) van genoemde schijf (5) en binnen het circulaire oppervlaktegebied (10) van de schijf afgegrensd door de eerste binnendiameter (11) en de tweede buitendiameter (12) van genoemd oppervlaktegebied (10).A system according to any one of the preceding claims 1-5, characterized in that the detector (6) for monitoring said predetermined marking of the disc (5) is arranged for scanning the disc (5). at a distance from the pivot point (13) of said disc (5) and within the circular surface area (10) of the disc bounded by the first inner diameter (11) and the second outer diameter (12) of said surface area (10). 7. Systeem volgens conclusie 6, met het kenmerk, dat de detector (6) in verbinding staat met een timing en/of rekeninrichting (17) voor het vastleggen van de tijd gedurende welke de detector (6) het eerste gebied (7) en/of het tweede gebied (8) waarneemt.A system according to claim 6, characterized in that the detector (6) is connected to a timing and / or computing device (17) for recording the time during which the detector (6) enters the first area (7) and / or the second area (8). 8. Systeem volgens conclusie 6 en 7, met het kenmerk, dat de timing en/of rekeninrichting (17) is ingericht voor het bepalen van de positie op welke de detector (6) de schijf waarneemt gebaseerd op de tijd gedurende welke de detector (6) het eerste gebied (7) en/of het tweede gebied (8) waarneemt gedurende een omwenteling van de schijf rond haar draaipunt (13) .A system according to claims 6 and 7, characterized in that the timing and / or computing device (17) is adapted to determine the position at which the detector (6) observes the disk based on the time during which the detector ( 6) perceives the first area (7) and / or the second area (8) during one revolution of the disc about its pivot (13). 9. Systeem volgens één der conclusies 6-8, met het kenmerk, dat de detector (6) in verbinding staat met een timing en/of rekeninginrichting (17) voor het tellen van het aantal omwentelingen per tijdseenheid van de schijf (5) gebaseerd op de gedetecteerde overgangen in het sequentieel detecteren van het eerste gebied (7) en het tweede gebied (8) door de detector (6).A system according to any one of claims 6-8, characterized in that the detector (6) is connected to a timing and / or calculating device (17) for counting the number of revolutions per unit of time of the disk (5) based at the detected transitions in the sequential detection of the first area (7) and the second area (8) by the detector (6). 10. Systeem volgens één der voorgaande conclusies 1-9, met het kenmerk, dat de detector (6) en een beweegbare magneet (M) welke gebruikt wordt voor het afremmen van de schijf (5) ten opzichte van elkaar in een gefixeerde positie gemonteerd zijn.A system according to any one of the preceding claims 1-9, characterized in that the detector (6) and a movable magnet (M) used for braking the disc (5) are mounted in a fixed position relative to each other to be. 11. Hometrainer (1) omvattende een remwiel (2) welke beoogd is om in wrijvingscontact te worden geplaatst met een achterwiel (3) van een fiets (4), en omvattend een schijf (5) gemonteerd op of deel vormend van genoemd remwiel (3), met het kenmerk, dat deze een detector (6) bezit voor het monitoren van ten minste één kinematische parameter van genoemde schijf (5), waarbij de schijf (5) voorzien is van een vooraf bepaalde markering (7, 8) en waarbij de detector (6) is ingericht voor het monitoren van genoemde vooraf bepaalde markering (7, 8) van de schij f (5) .An exercise bike (1) comprising a brake wheel (2) intended to be placed in frictional contact with a rear wheel (3) of a bicycle (4), and comprising a disc (5) mounted on or forming part of said brake wheel ( 3), characterized in that it has a detector (6) for monitoring at least one kinematic parameter of said disc (5), the disc (5) being provided with a predetermined marking (7, 8) and wherein the detector (6) is adapted to monitor said predetermined marking (7, 8) of the disk (5). 12. Hometrainer (1) volgens conclusie 11, met het kenmerk, dat de vooraf bepaalde markering de schijf (5) verdeelt in ten minste een eerste gebied (7) en een tweede gebied (8), welke gebieden (7, 8) tezamen zonder onderbreking een geheel circulair oppervlaktegebied (10) van de schijf (5) bedekken dat ligt tussen een eerste binnendiameter (11) en een tweede buitendiameter (12) die genoemd gebied (10) begrenzen.An exercise bike (1) according to claim 11, characterized in that the predetermined marking divides the disc (5) into at least a first area (7) and a second area (8), which areas (7, 8) together cover without interruption an entirely circular surface area (10) of the disc (5) that lies between a first inner diameter (11) and a second outer diameter (12) that define said area (10). 13. Hometrainer (1) volgens conclusie 12, met het kenmerk, dat het eerste gebied (7) en het tweede gebied (8) een enkele ononderbroken virtuele grenslijn (9) bepalen die het eerste gebied (7) en het tweede gebied (8) van elkaar afgrenzen.An exercise bike (1) according to claim 12, characterized in that the first area (7) and the second area (8) define a single continuous virtual boundary line (9) that defines the first area (7) and the second area (8) ) from each other. 14. Hometrainer (1) volgens conclusie 12 of 13, met het kenmerk, dat het eerste gebied (7) en het tweede gebied (8) een virtuele grenslijn (9) bepalen die het eerste gebied (7) en het tweede gebied (8) van elkaar afgrenzen, waarbij iedere positie op genoemde virtuele grenslijn (9) een vooraf bepaalde en unieke afstand bezit met betrekking tot een draaipunt (13) van genoemde schijf (5) zodanig dat er geen twee posities op de grenslijn (9) bestaan met dezelfde afstand tot het draaipunt (13) van de schijf (5), en dat iedere combinatie van twee posities op de virtuele grenslijn (9) die verschillende afstanden bezitten ten opzichte van genoemd draaipunt (13) tevens verschillende hoekposities bezitten met betrekking tot een vooraf bepaalde symmetrielijn (14) die een bovenhelft (15) en een onderhelft (16) van genoemd oppervlaktegebied (10) van de schijf (5) begrenst.An exercise bike (1) according to claim 12 or 13, characterized in that the first area (7) and the second area (8) define a virtual boundary line (9) defining the first area (7) and the second area (8) ) from each other, wherein each position on said virtual boundary line (9) has a predetermined and unique distance with respect to a pivot point (13) of said disc (5) such that there are no two positions on the boundary line (9) with the same distance to the pivot point (13) of the disk (5), and that any combination of two positions on the virtual boundary line (9) that have different distances from said pivot point (13) also have different angular positions with respect to a predetermined certain symmetry line (14) which delimits an upper half (15) and a lower half (16) of said surface area (10) of the disc (5). 15. Hometrainer volgens één der conclusies 12-14, met het kenmerk, dat het eerste gebied (7) en het tweede gebied (8) een virtuele grenslijn (9) bepalen die het eerste gebied (7) en het tweede gebied (8) van elkaar afgrenzen, waarbij genoemde virtuele grenslijn (9) gevormd is als een spiraalcurve beginnend bij de eerste binnendiameter (11) van het circulaire oppervlaktegebied (10) van de schijf (5) en welke met toenemende diameter in de richting van de tweede buitendiameter (12) van het circulaire oppervlaktegebied (10) van de schijf (5) spiraliseert.An exercise bike according to any one of claims 12-14, characterized in that the first area (7) and the second area (8) define a virtual boundary line (9) defining the first area (7) and the second area (8) from each other, said virtual boundary line (9) being formed as a spiral curve starting at the first inner diameter (11) of the circular surface area (10) of the disk (5) and which with increasing diameter in the direction of the second outer diameter ( 12) spirals from the circular surface area (10) of the disk (5). 16. Hometrainer (1) volgens conclusie 15, met het kenmerk, dat genoemde spiraalcurve een zogeheten Archimedische spiraal is.An exercise bike (1) according to claim 15, characterized in that said spiral curve is a so-called Archimedic spiral. 17. Hometrainer (1) volgens één der voorgaande conclusies 11-16, met het kenmerk, dat de detector (6) voor het monitoren van genoemde vooraf bepaalde markering (7, 8) van de schijf (5) is ingericht voor het waarnemen van de schijf (5) op een afstand van het draaipunt (13) van genoemde schijf (5) en binnen genoemd circulaire oppervlaktegebied (10) van de schijf dat wordt afgegrensd door de eerste binnendiameter (11) en de tweede buitendiameter (12) van genoemd oppervlaktegebied (10) .An exercise bike (1) according to any one of the preceding claims 11-16, characterized in that the detector (6) for monitoring said predetermined marking (7, 8) of the disc (5) is adapted to detect the disc (5) spaced from the pivot point (13) of said disc (5) and within said circular surface area (10) of the disc bounded by the first inner diameter (11) and the second outer diameter (12) of said surface area (10). 18. Hometrainer (1) volgens conclusie 17, met het kenmerk, dat de detector (6) in verbinding staat met een timing en/of rekeninrichting (17) voor het registreren van de tijd gedurende welke de detector (6) het eerste gebied (7) en/of het tweede gebied (8) waarneemt.An exercise bike (1) according to claim 17, characterized in that the detector (6) is connected to a timing and / or calculating device (17) for recording the time during which the detector (6) enters the first area ( 7) and / or the second area (8). 19. Hometrainer (1) volgens conclusie 17 en 18, met het kenmerk, dat de tijd en/of rekeninginrichting (17) is ingericht voor het bepalen van de positie op welke de detector (6) de schijf (5) waarneemt gebaseerd op de tijd gedurende welke de detector (6) het eerste gebied (7) en/of het tweede gebied (8) waarneemt gedurende een omwenteling van de schijf rond haar draaipunt (13).An exercise bike (1) according to claims 17 and 18, characterized in that the time and / or calculating device (17) is adapted to determine the position at which the detector (6) detects the disc (5) based on the time during which the detector (6) detects the first area (7) and / or the second area (8) during a revolution of the disk around its pivot (13). 20. Hometrainer (1) volgens één der conclusies 17-19, met het kenmerk, dat de detector (6) in verbinding staat met een timing en/of rekeninrichting (17) voor het tellen van het aantal omwentelingen per tijdseenheid van de schijf (5) gebaseerd op de waargenomen overgangen in het sequentieel detecte ren van het eerste gebied (7) en het tweede gebied (8) door de detector (6).An exercise bike (1) according to any one of claims 17-19, characterized in that the detector (6) is connected to a timing and / or calculating device (17) for counting the number of revolutions per unit of time of the disc ( 5) based on the observed transitions in the sequential detection of the first area (7) and the second area (8) by the detector (6). 21. Hometrainer (1) volgens één der conclusies 11-20, met het kenmerk, dat de detector (6) en een beweegbare magneet (M) welke gebruikt wordt voor het afremmen van de schijf ten opzichte van elkaar in een vaste positie gemonteerd zijn.An exercise bike (1) according to any one of claims 11-20, characterized in that the detector (6) and a movable magnet (M) used for braking the disc are mounted in a fixed position relative to each other . 22. Hometrainer (1) volgens conclusie 20 of 21, met het kenmerk, dat de timing en/of rekeninrichting (17) een ka-dans van een gebruiker van genoemde hometrainer (1) bepaalt gebaseerd op een variatie in het aantal getelde omwentelingen per tijdseenheid van de schijf (5).An exercise bike (1) according to claim 20 or 21, characterized in that the timing and / or calculating device (17) determines a command of a user of said exercise bike (1) based on a variation in the number of revolutions counted per unit of time of the disc (5).
NL2012425A 2014-03-13 2014-03-13 System and home trainer comprising a disk and a detector for monitoring at least one kinematic parameter of said disk. NL2012425B1 (en)

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US4602373A (en) * 1983-09-09 1986-07-22 Roy S. Robinson Variable reactive force exercise device
DE4232864A1 (en) * 1992-09-30 1994-03-31 Thomson Brandt Gmbh Rotation angle, revolution rate and rotation direction measurement - using analogue and digital encoder with differentiation and integration of signals.
WO1997014608A1 (en) * 1995-10-17 1997-04-24 Seiko Epson Corporation Sensor device, driving force supplementing device using the device and zero point adjusting device for a torque sensor for the driving force supplementing device
ES2186195T3 (en) * 1997-06-28 2003-05-01 Kostal Leopold Gmbh & Co Kg PROCEDURE FOR DETERMINING THE ABSOLUTE ANGLE POSITION OF THE MOTOR VEHICLE, AS WELL AS OPTOELECTRONIC SENSOR OF THE STEERING ANGLE.
DE10032671B4 (en) * 2000-07-05 2010-09-09 Leopold Kostal Gmbh & Co. Kg Power steering system for motor vehicles

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