EP0376403A1 - Appareil d'entraînement pour ramer - Google Patents

Appareil d'entraînement pour ramer Download PDF

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Publication number
EP0376403A1
EP0376403A1 EP89203317A EP89203317A EP0376403A1 EP 0376403 A1 EP0376403 A1 EP 0376403A1 EP 89203317 A EP89203317 A EP 89203317A EP 89203317 A EP89203317 A EP 89203317A EP 0376403 A1 EP0376403 A1 EP 0376403A1
Authority
EP
European Patent Office
Prior art keywords
flywheel
frame
rope
chain
mass
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.)
Granted
Application number
EP89203317A
Other languages
German (de)
English (en)
Other versions
EP0376403B1 (fr
Inventor
Gerhardus Meintes Oosterhout
Casper Johannes Nicolaas Rekers
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
Application filed by Individual filed Critical Individual
Publication of EP0376403A1 publication Critical patent/EP0376403A1/fr
Application granted granted Critical
Publication of EP0376403B1 publication Critical patent/EP0376403B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A63B21/15—Arrangements for force transmissions
    • A63B21/151—Using flexible elements for reciprocating movements, e.g. ropes or chains
    • A63B21/153—Using flexible elements for reciprocating movements, e.g. ropes or chains wound-up and unwound during exercise, e.g. from a reel
    • 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
    • A63B21/15—Arrangements for force transmissions
    • A63B21/157—Ratchet-wheel links; Overrunning clutches; One-way clutches
    • 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
    • A63B22/0076—Rowing machines for conditioning the cardio-vascular system
    • 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
    • A63B22/0076—Rowing machines for conditioning the cardio-vascular system
    • A63B2022/0079—Rowing machines for conditioning the cardio-vascular system with a pulling cable
    • 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
    • A63B21/012—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters
    • A63B21/015—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters including rotating or oscillating elements rubbing against fixed elements
    • 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
    • A63B21/22—Resisting devices with rotary bodies
    • A63B21/225—Resisting devices with rotary bodies with flywheels

Definitions

  • the invention relates to a rowing ergometer comprising a first portion having a frame wherein is arranged a flywheel which is drivable by means of a chain or rope through a suitable transmission mechanism, said chain or rope being connected at an end remote from the flywheel to a handgrip simulating an oar, said flywheel being further provided with an adjustable friction mechanism and a freewheel clutch, in such a manner that when the handgrip is pulled, the flywheel is set in motion, a footrest or brace connected to the first portion or to the frame, a second portion arranged beside the first portion and having a top surface and a seat having means for moving it over the top surface of the second portion in a direction substantially towards and away from the frame with flywheel.
  • a rowing ergometer of this type is known from USP 4,396,188.
  • the frame comprises a kind of fork wherein the flywheel is arranged and to which the footrest or brace is attached.
  • the fork is affixed to the second portion, having the form of a monorail along which the seat slides.
  • the chain for driving the flywheel extends alongs the transmission mechanism to the monorail.
  • the chains' end is attached to an elastic cable which, in its turn, is secured to the monorail.
  • a rowing ergometer is a rowing simulator used by rowers as training replacing rowing if this is excluded by weather conditions, e.g. in the winter. It is desirable for an effective training that the power distribution characteristic of the rowing ergometer corresponds optimally with that of the boat type for which the training is done, so as to prevent wrong movement patterns from being rooted.
  • the rowing movement can be divided into two parts, i.e. the stroke, during which the rower pulls the oar through the water, thereby propelling the boat, and the recovery, during which the oar is lifted out of the water into the starting position for a new stroke.
  • the force exerted by the rower on the oar is not constant.
  • a power maximum occurs.
  • the power distribution characteristic occurring in the stroke during rowing is typical of the type of boat in which rowing takes place and of the physique of the rower.
  • a drawback of the known rowing ergometer is that the power distribution characteristic differs strongly from the power distribution occurring normally in a boat during the stroke.
  • the known device consequently, fails to meet the above defined requirement and is therefore suitable for rowing replacing trainings to a limited extent only.
  • True it has been tried to remove this drawback in certain types of rowing ergometers by providing the transmission with a mechanism effecting a variation of the transmission ratio during the stroke according to a fixed profile.
  • a drawback thereof is that the power distribution characteristic depends on the stroke length and hence on the physique of the rower. In such modified rowing ergometers, the stroke is only reasonably simulated for one specific physique and for one specific type of boat. The applica­bility of such a type of ergometer is only highly limited, consequently.
  • the power distribution characteristic of the rowing ergometer can be drastically improved and that said characteristic can be made better adjustable if the portion of the rowing ergometer containing the flywheel is rendered movable relative to the second portion of the device, e.g. by providing this portion with wheels or rollers by means of which it can move over a flat foundation.
  • a power distribution characteristic true to nature which is independent of the length of the stroke.
  • said characteristic in the device according to the invention, can be adjusted in a simple manner to that of the type of boat for which training is desired, while, moreover, also the power level can be chosen freely.
  • the mobility of the frame with flywheel is realized by providing a lengthened portion of the station­ary second portion of the device with a more or less flat top surface, while the frame with flywheel and the intercon­nected footrest are fitted with means for moving said frame over said surface in a direction substantially towards and away from the second portion.
  • the second portion comprises a beam or monorail on standards over which both the seat and the frame with flywheel are movable in a direction towards and away from one another.
  • the handgrip-averted end of the chain or rope through a suitable pulley system attached to the stationary second portion and a pulley secured to one end of an elastic element, is attached to one side of the frame with flywheel, while the elastic element extends via another suitable pulley system attached to the stationary second portion, and is attached with the other end to the opposite side of the frame with flywheel in such a manner that the forces exerted by the chain or rope and by the elastic element on the frame with flywheel are opposed and practically eliminate each other.
  • the mass of the mobile portion, of which the frame with flywheel forms part is suitably less than 50 kg, preferably, that mass is 7.5 - 25 kg.
  • the mass of the profile portion, of which the frame with flywheel forms part is variable and can be set to a desired value, for it has been surprisingly found that in the device according to the invention, the initiation of the stroke is found heavier according as the mass of the portion incorporating the flywheel is less. This is entirely contrary to what happens normally in a rowing boat, where the stroke becomes heavier according as the boat is heavier.
  • the characteristic of the stroke is thus variable and adjustable.
  • the mass of the movable frame with flywheel is not too large.
  • this mass is not more than the weight of a boat with helmsman averaged over the rowers.
  • a suitable upper limit therefore is at any rate about 50 kg and in many cases even about 25 kg.
  • the lower limit of 7.5 kg is dictated only by the weight of the parts used.
  • the construction is such that the friction level of the friction mechanism and/or the transmission ratio of the transmission mechanism and/or the mass inertia of the flywheel are variable and can be set to a desired value.
  • the transmission mechanism and/or the friction mechanism are constructed in such a manner that the transmission ratio and/or the friction level, in operation, vary in a presettable manner. A change in friction factor and/or transmission ratio during the stroke has been found useful for optimizing the adjustment to reality.
  • the friction of the flywheel of the device according to the invention is basically proportional to the square of the speed. In a boat, the friction in actual practice is likewise propor­tional to the square of the speed, but there is moreover the resistance of the waves.
  • This additional friction can be approximated with the present device by increasing the friction factor during the stroke, in dependence upon e.g. the speed or upon the stroke length.
  • the mass inertia of the flywheel can be adjustable suitably and be varied during the stroke with similar effect.
  • the friction mechanism of the device according to the invention can be constructed in different manners. For instance, it may be a mechanism based on mechanical friction or a mechanism based on fluid friction, or a mecha­nism based on eddy current braking.
  • the device according to the invention is "hard" to the touch of the user, since contrary to a real rowing boat, no elastic parts form part thereof.
  • the oar of a boat is resilient.
  • the handgrip in the device according to the invention is not. This could result in injuries upon prolonged use. According to the invention, this appears avoidable by constructing the device in such a manner that the footrest is resiliently connected to the first portion of the device.
  • Fig. 1 The embodiment of the device according to the invention highly diagrammatically shown in Fig. 1 comprises a frame 1 arranged on and attached to a suitable bottom plate 2. Arranged or suspended in frame 1 is a flywheel 3. Wound about a pulley 4 connected to the flywheel is a chain or rope 5 to one end of which a handgrip 6 is attached. By pulling at handgrip 6, pullley 4 and hence flywheel 3 is brought in rotation. The attachment of pulley 4 to flywheel 3 has a freewheel mechanism, so that at the moment when hand­grip 6 is no longer pulled, the pulley performs no further rotation but the flywheel continues to rotate.
  • the pulley is provided with a spring mechanism, so that the rope or chain 5 is rewound as soon as less pulling force is exerted on handgrip 6.
  • Flywheel 3 is also provided with a suitable friction mechanism 7, illustrated in the figure as a block overhanging the flywheel on a rope, but which, in practice, may be any suitable mechanism. The construction described so far is known and is used in this form or in a slightly modified form in existing rowing ergometers.
  • the second portion 8 of the device Arranged at some interspace from frame 1 with flywheel 3 is the second portion 8 of the device according to the invention, which second portion 8 is illustrated diagram­matically as a block having a flat top surface.
  • the seat 9, having suitable wheels or rollers 10, is adapted to move over the flat upper surface of the second portion 8 in a direction towards and away from frame 1.
  • the construction shown is indicated only highly diagrammatically and that other constructions are quite well possible.
  • the second portion 8 of the device may also have the form of a beam on standards, over which beam the seat will then slide reciprocatingly as a monorail train.
  • the second portion 8 of the device is connected to a lengthened, lowered portion 11 having a flat top surface, extending to underneath bottom plate 2, on which frame 1 is erected.
  • Bottom plate 2 is provided with suitable wheels or rollers 12 by means of which the assembly of bottom plate 2 and frame 1 with flywheel 3 can move over the flat surface of the lowered portion 11.
  • the portion with flywheel relative to the surroundings in a direction towards and away from the second portion, on which or over which the seat is moving.
  • the frame with flywheel can be such that it moves likewise over said rail construction.
  • the lengthened portion 11 of the second portion 8 is no lowered portion but a single long rail construction.
  • a footrest 13 Connected to bottom 2 is a footrest 13, which according to the invention is effected preferably by means of a spring 14.
  • the stationary second portion of the device comprises a beam or monorail 8 on standards 15.
  • Both the seat 9 having suitable rollers 10, and the frame 1 with flywheel 3 and footrest 13, having suitable rollers 16, are adapted to reciprocate over the beam or monorail 8.
  • Frame 1 is provided with an upwardly directed arm 17, on which flywheel 3 is mounted.
  • the chain or rope 5 extends from handgrip 6 over a suitable transmission mechanism 4, having a freewheel clutch and being connected to flywheel 3, a pulley 18 attached to the upright arm 17, a first pulley 19 attached to monorail 8, a pulley 21 attached to an elastic element 20, and a second pulley 22 attached to monorail 8 towards the front of the movable frame 1, where the chain or rope 5 is attached.
  • Pulley 21 is attached to the one end of the elastic element or the elastic cable 20.
  • Said element 20 extends via a set of pulleys 23, 24, again 23 and 25, attached to monorail 8, to the rearmost portion of the movable frame 1, to which it is attached with the other end.
  • the construction, consequently, is such that the forces exerted by chain or rope 5 and by elastic element 20 are opposed and eliminate each other practically.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Rehabilitation Tools (AREA)
EP19890203317 1988-12-27 1989-12-22 Appareil d'entraînement pour ramer Expired - Lifetime EP0376403B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8803177 1988-12-27
NL8803177A NL8803177A (nl) 1988-12-27 1988-12-27 Roei-ergometer.

Publications (2)

Publication Number Publication Date
EP0376403A1 true EP0376403A1 (fr) 1990-07-04
EP0376403B1 EP0376403B1 (fr) 1993-03-10

Family

ID=19853444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890203317 Expired - Lifetime EP0376403B1 (fr) 1988-12-27 1989-12-22 Appareil d'entraînement pour ramer

Country Status (3)

Country Link
EP (1) EP0376403B1 (fr)
DE (1) DE68905317T2 (fr)
NL (1) NL8803177A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343856A (en) * 1992-11-18 1994-09-06 Proctor Alfred E Complete body passive exercise machine
US5382210A (en) * 1992-11-13 1995-01-17 Rekers; Casper J. N. Dynamically balanced rowing simulator
WO2004026412A1 (fr) 2002-09-12 2004-04-01 Winrow Gmbh Appareil pour l'entrainement a l'aviron
US8608626B2 (en) * 2007-01-23 2013-12-17 Rowperfect Pty Ltd Rowing machine simulator
CN107349583A (zh) * 2017-08-31 2017-11-17 张局 分体式划船运动健身设备
EP3209393A4 (fr) * 2014-10-21 2018-06-13 Total Gym Global Corp. Dispositif d'entraînement à l'aviron et procédé pour l'utiliser

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017008775A1 (fr) 2015-07-13 2017-01-19 Augletics Gmbh Procédé de traitement de données d'entraînement dans un ergomètre d'aviron et ergomètre d'aviron pour la mise en oeuvre de ce procédé
CN109107091B (zh) * 2018-08-29 2019-06-11 山东科技大学 一种用于室内场地的四肢力量训练装置
WO2023242023A1 (fr) 2022-06-13 2023-12-21 Jonas Albiger Rameur avec repose-pieds coulissant et procédé de fonctionnement du rameur
DE102022114779A1 (de) 2022-06-13 2023-12-14 Jonas Albiger Rudergerät mit Schlittenkonstruktion und Verfahren zum Betreiben des Rudergeräts
DE202023102429U1 (de) 2023-05-04 2023-07-27 Jonas Albiger Rudergerät mit verschiebbarem Stemmbrett

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH164228A (de) * 1932-08-19 1933-09-30 Trumpfheller Wilhelm Gerät für der Ruderbewegung ähnliche körperliche Übungen.
GB481004A (en) * 1937-03-16 1938-03-03 Charles Hollingsworth Tidbury A manually operated travelling rowing machine
DE1703771A1 (de) * 1968-07-08 1972-03-09 Rolf Dr Seybold Rudertrainingsgeraet
DE2335544A1 (de) * 1973-07-12 1975-01-30 Beilhack Feuerland Werk Trockenrudergeraet
US4396188A (en) * 1981-07-15 1983-08-02 Dreissigacker Peter D Stationary rowing unit
US4647035A (en) * 1984-07-16 1987-03-03 Robert Yellen Rowing exercise device
US4798378A (en) * 1985-07-15 1989-01-17 Jones Robert S Rowing machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH164228A (de) * 1932-08-19 1933-09-30 Trumpfheller Wilhelm Gerät für der Ruderbewegung ähnliche körperliche Übungen.
GB481004A (en) * 1937-03-16 1938-03-03 Charles Hollingsworth Tidbury A manually operated travelling rowing machine
DE1703771A1 (de) * 1968-07-08 1972-03-09 Rolf Dr Seybold Rudertrainingsgeraet
DE2335544A1 (de) * 1973-07-12 1975-01-30 Beilhack Feuerland Werk Trockenrudergeraet
US4396188A (en) * 1981-07-15 1983-08-02 Dreissigacker Peter D Stationary rowing unit
US4647035A (en) * 1984-07-16 1987-03-03 Robert Yellen Rowing exercise device
US4798378A (en) * 1985-07-15 1989-01-17 Jones Robert S Rowing machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5382210A (en) * 1992-11-13 1995-01-17 Rekers; Casper J. N. Dynamically balanced rowing simulator
US5343856A (en) * 1992-11-18 1994-09-06 Proctor Alfred E Complete body passive exercise machine
WO2004026412A1 (fr) 2002-09-12 2004-04-01 Winrow Gmbh Appareil pour l'entrainement a l'aviron
DE10242384B3 (de) * 2002-09-12 2004-04-15 Winrow Gmbh Rudertrainingsgerät
US8608626B2 (en) * 2007-01-23 2013-12-17 Rowperfect Pty Ltd Rowing machine simulator
EP3209393A4 (fr) * 2014-10-21 2018-06-13 Total Gym Global Corp. Dispositif d'entraînement à l'aviron et procédé pour l'utiliser
US10010747B2 (en) 2014-10-21 2018-07-03 Total Gym Global Corp. Rowing exercise device and method of using same
CN107349583A (zh) * 2017-08-31 2017-11-17 张局 分体式划船运动健身设备

Also Published As

Publication number Publication date
EP0376403B1 (fr) 1993-03-10
DE68905317D1 (de) 1993-04-15
NL8803177A (nl) 1990-07-16
DE68905317T2 (de) 1993-07-15

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