EP4304744A1 - Dispositif de compensation pour ergomètre comportant une unité à vibration et son utilisation dans un ergomètre à vibration pour les membres supérieurs et inférieurs - Google Patents

Dispositif de compensation pour ergomètre comportant une unité à vibration et son utilisation dans un ergomètre à vibration pour les membres supérieurs et inférieurs

Info

Publication number
EP4304744A1
EP4304744A1 EP22709728.4A EP22709728A EP4304744A1 EP 4304744 A1 EP4304744 A1 EP 4304744A1 EP 22709728 A EP22709728 A EP 22709728A EP 4304744 A1 EP4304744 A1 EP 4304744A1
Authority
EP
European Patent Office
Prior art keywords
bearing
vibration
connecting rod
main shaft
ergometer
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
EP22709728.4A
Other languages
German (de)
English (en)
Inventor
Oliver DUNKELBERG
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.)
Brainaix Swiss Ag
Original Assignee
Brainaix Swiss Ag
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 Brainaix Swiss Ag filed Critical Brainaix Swiss Ag
Publication of EP4304744A1 publication Critical patent/EP4304744A1/fr
Pending legal-status Critical Current

Links

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
    • A63B21/00196—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using pulsed counterforce, e.g. vibrating resistance means
    • 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
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A63B21/0058—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using motors
    • A63B21/0059—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using motors using a frequency controlled AC motor
    • 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
    • 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
    • A63B21/40—Interfaces with the user related to strength training; Details thereof
    • A63B21/4027—Specific exercise interfaces
    • A63B21/4033—Handles, pedals, bars or platforms
    • A63B21/4034—Handles, pedals, bars or platforms for operation by feet
    • 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
    • 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
    • A63B21/40—Interfaces with the user related to strength training; Details thereof
    • A63B21/4027—Specific exercise interfaces
    • A63B21/4033—Handles, pedals, bars or platforms
    • A63B21/4035—Handles, pedals, bars or platforms for operation by hand
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09—Adjustable dimensions

Definitions

  • the present invention relates to a compensation device for an ergometer with a vibration unit, methods for operating such an ergometer and methods for producing such ergometers and uses of such ergometers.
  • US Pat. No. 4,570,927 shows a device in which the legs of a paraplegic patient are moved and vibrated with a crank unit driven by a motor.
  • NL 102 16 19 C describes a device in which vibration energy is transmitted to the upper extremities via a handle bar.
  • DE 10241 340 A1 discloses a device in which a vibratode selectively transmits vibrations to stretched muscle structures.
  • DE 196 39 477 A1 shows a device with a seat, a handle bar and a vibration unit, with which the user's feet are subjected to vibrations.
  • DE 103 13 524 B3 discloses a training device in which one or more contact points to the person being trained that can be subjected to vibrations are vibration-mechanically isolated by one or more damping elements, so that all assemblies for supporting the body parts of the user are made to vibrate.
  • a vibration ergometer is known from WO 2006/69988 A1, in which a bottom bracket is firmly connected to a vibration plate, which is made to oscillate by two opposing vibration motors.
  • the disadvantage is that a non-directional vibration is generated, the amplitude of which decreases depending on the mechanical load on the pedal crank or the setting of the ergometer brake.
  • the connection between the pedal crank and the ergometer brake is only possible with a bicycle chain with a chain tensioner to compensate for the differences in length and position between the bottom bracket and the ergometer: This causes unpleasant noises and additional security measures are necessary to prevent the chain from jumping off the front chainring .
  • EP 2 158 944 A2 describes a vibration ergometer with variable-amplitude vibration. How the vibration is actually generated and how this amplitude change is to be realized is not disclosed there.
  • US-A-2015045190 discloses an eccentric idler pulley in a stationary exercise bike.
  • the exercise bike may include an eccentric driver or driven shaft that rotates a belt or chain.
  • the idler pulley is coupled to the exercise bike and is configured to rotate eccentrically in contact with the belt or chain.
  • the exercise bike of various embodiments is configured to produce a reciprocating motion, providing users with a vibrant exercise experience.
  • a motor for the vibration is not mentioned.
  • the vibration is generated by the pedaling movement, so no vibration independent of the cadence is disclosed.
  • WO-A-2009024877 discloses an exercise assembly having a stationary frame with a seat and a handle for a user attached to the frame. At least one flywheel is rotatably mounted to the frame and is supported by a flexible drive member having at least one pedal operatively connected to a crankshaft. Vibration means are connected to the flywheel and/or the crankshaft, suitable to impart vibrations to the user. There is no compensation unit in this construction, the "electromechanical actuation means 24" described are not a counterweight, but a chain tensioner.
  • US-A-2011152040 shows an exercise system for exercising a body part of a user, comprising a frame for positioning the exercise system in use on a surface, a bicycle device comprising at least one bicycle element configured to rotate about a bicycle axis, a vibration device for moving at least one cycling element as vibration and also a method and use of the training system. There is no compensation unit in this construction.
  • GB-A-2139513 shows a bicycle having a frame with pedals, a seat post and a handlebar support, the latter being mounted for pivotal movement about a horizontal axis and also having a mechanism selectively connectable to the support to give it a to impart a rocking or vibrating motion.
  • the mechanism includes a polygonal plate releasably engageable with a bearing mounted on an extension of the beam, the polygonal plate being rotatable via the pedals.
  • the bearing In order for vibration or rocking to take place, the bearing must touch the perimeter of the plate, but a pin is provided between the slots in the plates to prevent this. The pin is pushed to the bottom of the slots by a spring, but can be pulled up by a cable operated from the handlebars.
  • the cable can also be connected to it via a lever.
  • Each leg of the struts may comprise telescopically coupled hollow housings between which is located a compression spring.
  • the vibration is generated by the pedal crank, similar to US-A-2011152040. There is no motor for generating vibrations, nor is there a compensation device.
  • the MVT products of the state of the art only cover a selective part of the training therapy; a holistic training concept cannot be realized with these devices.
  • a combination with conservative training equipment is obligatory (e.g. with cardio equipment in the warm-up/cool-down or additional mechanical resistance training).
  • the object of the present invention is to provide an improvement in the vibration for an ergometer with a vibration unit, for which purpose a compensation device is provided which nevertheless ensures optimal mounting of the bottom bracket for the vibrations, with preferably both the amplitude and the frequency of the unit being coordinated that of the vibration unit is adjustable, and wherein the vibration acts essentially in one, preferably vertical, direction, the amplitude of the vibration is essentially independent of the load on the vibration unit, and vibration frequencies of up to 50 Hz can be achieved.
  • a further object of the present invention is the use of the compensation device according to the invention in a vibration ergometer for the lower and upper extremities.
  • the present invention relates to an ergometer, in particular a bicycle ergometer, with at least one pedaling device for a user and with a vibration unit according to claim 1.
  • the present invention relates to a bicycle ergometer.
  • the concepts described here can be used analogously with an ergometer for the upper extremities, ie a hand-held ergometer.
  • the bottom bracket used in the following is of course not a bottom bracket in the actual sense, but a crank bearing for such a hand-held ergometer, and the pedaling device mentioned below is then not a pedaling device, but a rotating device for the hands.
  • such a device is preferably characterized in that the vibration unit causes the treadle device to vibrate and the ergometer has a compensation device in addition to the vibration unit, which at least partially compensates for the vibrations of the vibration unit outside the treadle device by negative interference.
  • Such an ergometer is preferably further characterized in that the compensating device generates vibrations having the same frequency and substantially the same amplitude as the vibrations of the vibrating unit, with a phase shift of substantially 180°.
  • said negative interference i.e. H. the elimination of the vibrations at the undesired places.
  • a common motor preferably a common shaft driven by a common motor, preferably generates both the vibrations of the vibration unit and the vibrations of the compensation device.
  • a preferred embodiment of the proposed ergometer is characterized in that the vibration unit has at least one main shaft driven directly or indirectly by a motor with an eccentric disk attached thereto, the eccentric disk being rotatably coupled to a connecting rod, and further preferably the connecting rod having a Eccentric disc oppositely arranged connecting rod transmits the vibrations to the bearing of the pedal device, so that the vibrations are applied essentially exclusively to this bearing in the vertical direction.
  • the vibrating unit can have at least one main shaft driven directly or indirectly by a motor with an eccentric disc attached thereto, the eccentric disc being rotatably coupled to a connecting rod.
  • a further eccentric disk is preferably arranged on the main shaft, with which a counterweight is set into a compensating vibration, this further eccentric disk preferably being arranged on the main shaft with the eccentricity opposite to the eccentric disk for driving the connecting rod.
  • the further eccentric disc can drive a further connecting rod which is rotatably mounted on the further eccentric disc and is coupled to a counterweight which is made to vibrate in substantially the same direction as the vibration device on the bearing, but with a vibration on the bearing compensating Effect, preferably by offsetting the vibration at the counterweight by 180° from the vibration at the bearing.
  • a further preferred embodiment is characterized in that a brake is arranged, preferably essentially at the same height as the pedal device, which is coupled to the pedal device via a power transmission element, preferably in the form of a chain, a toothed belt or a V-belt, and the counterweight is mounted so as to be pivotable about a horizontal pivot axis bearing, preferably arranged at the height of an axis of the brake.
  • a power transmission element preferably in the form of a chain, a toothed belt or a V-belt
  • the pivoting axis is preferably arranged in such a way that the counterweight in the area of the bearing performs the pivoting movement essentially exclusively in the vertical direction, with the counterweight preferably having a weight head in the area of the bearing, and this weight head also preferably enclosing the bearing area at least partially in the form of a fork at the top and bottom .
  • the vibrating unit may be located below the bearing and the connecting rod head coupled directly to the bearing, preferably forming a bearing shell for the bearing, and the connecting rod bearing substantially all of the vertically downward load on the bearing alone and without further Guide wears, preferably the axis of the main shaft is parallel to the axis of the bearing.
  • the bearing of the pedal device can also be mounted in a vertical linear guide with a linear carriage, the linear carriage being fixedly connected to the bearing at the top and to the connecting rod head at the bottom, with the axis of the main shaft preferably running parallel to the axis of the bearing.
  • a base plate is preferably provided, below which the main shaft and preferably also the motor is arranged and above which the pedaling device is arranged, with a recess being provided in the base plate, through which the connecting rod passes and is coupled directly to the bearing with its connecting rod head .
  • a further preferred embodiment is characterized in that a brake is again arranged, preferably essentially at the same height as the pedaling device, which is coupled to the pedaling device via a power transmission element, preferably in the form of a chain, a toothed belt or a V-belt , and wherein the bearing of the pedal device is pivotably mounted about a horizontal pivot axis, preferably arranged at the level of an axis of the brake, the pivot axis preferably being arranged such that at the location of the bearing the pivoting movement is essentially exclusively permitted in the vertical direction.
  • the ergometer can also be characterized in that the pivot axis bearing of the bearing by a substantially fork-shaped Construction is given in which the fork ends of the arms are rotatably mounted about the pivot axis, and the opposite merged arms are connected to the bearing, preferably in that the merged area forms a bearing seat for the bearing of the pedal device.
  • the vibration unit can be arranged below this brake, preferably above a base plate, and preferably the coupling of the connecting rod to the bearing can be implemented via at least one strut running obliquely upwards and connecting the connecting rod head directly or indirectly to the bearing.
  • a strut is preferably rigidly connected to the pivot axis bearing.
  • the compensation device comprises a counterweight, in particular with a weight head, which is preferably arranged in the area of the bearing of the pedal device, and also preferably partially encompasses this bearing without touching it, and which vibrates in the opposite direction to that generated by the vibration unit Vibration at the bearing is offset.
  • the eccentric disc and/or an additional eccentric disc that may be present can be slidably and adjustably mounted on the main shaft in a direction perpendicular to the axis of rotation of the main shaft, with this mounting preferably being realized by a slotted guide, in which at least one adjustment element can be moved along the axis of the main shaft causes displacement of the eccentric disc along a direction perpendicular to the axis of rotation of the main shaft.
  • the at least one adjustment element can be slidably mounted in a recess or passage opening in the main shaft via adjusting means, and a link can adjust the eccentricity of the eccentric disc in or on the adjustment element by interacting with a sliding block on the eccentric disc.
  • an eccentric disc for generating the desired vibration and another eccentric disc for the counterweight are mounted on the main shaft, and either an adjusting element is provided with which the eccentricity of both eccentric discs can be adjusted offset by 180°, or that two individual adjusting elements are provided for the respective eccentric disc, via which the eccentricity of the discs can be adjusted individually.
  • Such an ergometer is intended to be operated at a frequency of 1-50 Hz with a vibration amplitude at the bearing in the range of 1-10 mm, preferably in the range of 3-7 mm, preferably with a load in the range of 50-500 W, especially in the 100-300 W range.
  • the present invention relates to the operation or use of a Ergometer as described above for therapeutic and/or form-building therapy, preferably with frequencies in the range of 5-50 Hz, preferably in the range of 7-25 Hz and/or with amplitudes in the range of 1-10 mm, preferably 3-7 mm be placed in stock.
  • FIG. 2 shows the vibration unit according to FIG. 1 in a sectional illustration in a) in a detailed section according to A in FIG. 2a) in b);
  • FIG. 4 shows the vibration unit according to FIG. 3 in a sectional representation
  • FIG. 6 shows the vibration unit according to FIG. 5 in a sectional representation
  • FIG. 7 shows different arrangements of the vibration unit, in which a) shows an embodiment in which the bottom bracket is mounted directly from below by the connecting rod via a rocker, b) shows an embodiment in which the bottom bracket is mounted in a linear bearing without a rocker is, to which the vibration unit is coupled from below and in c) an embodiment is shown in which the vibration unit is arranged below the brake, the bottom bracket is mounted on a rocker and a counterweight is provided;
  • FIG. 8 shows a side view of the embodiment according to FIG. 7b
  • FIG. 9 views of an embodiment according to Figure 7c, wherein in a) for the better
  • FIG. 10 shows different views of a further embodiment with a vibration unit coupled to the rocker arm and a counterweight, in a) the right-hand side view, in b) the left-hand side view, in c) view from above, in d) an exploded view, in e) a view diagonally from the top right and in f a view diagonally from the bottom right are shown.
  • FIG. 1 shows essential elements of a vibration unit in an exploded view.
  • the actual main shaft 12 is supported by two bearings 11 and is rotated by a motor (not shown).
  • the coupling to the engine can be either direct or indirect, for example via a V-belt.
  • the motor is preferably a servomotor with a power in the range of 300-1,600 W.
  • the main shaft 12 is structured and has an area on the left-hand side 40 in which it is supported by the bearings 11 mentioned.
  • the two ball bearings 11 serve to support the main shaft 12 with the bearing housing 19 and prevent an axial displacement of the main shaft 12.
  • a shoulder surface 12a follows on the right-hand side.
  • This shoulder surface 12a prevents axial displacement of the eccentric disk 6 shown above on the right and thus of the entire connecting rod 1.
  • the eccentric disk 6 is movably placed on the sliding surface 12b of the main shaft.
  • the sliding cups 9 are positively held in the eccentric disc 6 and enable eccentric adjustment of the eccentric disc 6 from the axis of rotation of the main shaft 12.
  • the power transmission of the rotation of the main shaft 12 to the eccentric disc 6 takes place via the sliding surface 12b via the sliding cups 9 and thus to the connecting rod 1.
  • the eccentric disk 6 does not lie directly on the sliding surfaces 12b of the main shaft, but between them are the sliding shells 9, which, as shown here, can be made in two parts but also in one piece.
  • the contact surfaces 41 on the inside of the eccentric disk 6 are correspondingly in contact with the outside of the sliding cups 9 and their contact surfaces 42 on the inside are in turn in contact with the sliding surface 12b of the main shaft 12.
  • the sliding shells 9 are preferably made of a material with sliding properties, for example a plastic with sliding properties (e.g. PTFE), and the main shaft 12 is made of metal in order to achieve an optimal sliding pairing on the sliding surface 12b.
  • a material with sliding properties for example a plastic with sliding properties (e.g. PTFE)
  • the main shaft 12 is made of metal in order to achieve an optimal sliding pairing on the sliding surface 12b.
  • the eccentric disc 6 has in its axial recess 43 a sliding block 5 which runs transversely to the axis and is inclined relative to the latter and which determines the deflection of the eccentric disc 6 and thus the stroke of the connecting rod 1 .
  • the sliding block 5 bridges the recess 43 and is held by the screws 7 .
  • the fitted screws 7 fix the sliding block 5 in the eccentric disc 6 not only with a force fit but also with a form fit.
  • a ball bearing is fastened with the bearing ring 3 on the eccentric disc 6 to support the connecting rod 1. To do this, the ball bearing with the bearing ring 3 is screwed over the screws 2 with the eccentric disc screwed.
  • a clamping ring 8 is provided, which fixes the outer ring of the ball bearing 4 to the connecting rod 1 via the screws 10 in a non-positive manner. The screws 10 clamp the ball bearing 4 onto the connecting rod 1 via the clamping ring 8.
  • the forces of the connecting rod 1 are transmitted via the eccentric disc 6 via the sliding shells 9 to the main shaft 12 and via the bearing arrangement 11 to the bearing housing 19 .
  • the connecting rod head 1a is used to accommodate a bearing for the movable fixation with the linear unit or the rocker (see below).
  • a pin-shaped adjustment element 13 engages in an axial blind hole 38 of the main shaft 12 in a displaceable manner.
  • the adjustment element 13 is positively and non-positively connected to the bearing mount 15 via the fitted screws 14 .
  • the bearing mount 15 accommodates the bearing arrangement 16 in the form of two ball bearing rings.
  • the bearing arrangement 16 can be adjusted without play in the axial direction and is equipped with a shaft clamping nut 20 and a locking ring 21 (both not shown in FIG. 1, see FIG. 2). attached to the trapezoidal spindle 18.
  • the trapezoidal spindle 18 moves the adjusting element 13 in the axial direction to change the stroke of the connecting rod 1.
  • the trapezoidal spindle 18 does not rotate with the main shaft 12 as a result of the bearing arrangement 16.
  • the adjusting element 13 is preferably made of a material with sliding properties, for example a plastic with sliding properties (e.g. PTFE), and the sliding block 5 is made of metal in order to achieve an optimal sliding pairing.
  • a connecting link opening in the form of a cutout surface 13a runs transversely in the adjusting element.
  • This cut-out area has a width that is essentially the same as the thickness of the sliding block 5, but is much longer.
  • the eccentric disk 6 is thus eccentrically mounted on the main shaft 12 .
  • the lower ring of the connecting rod 1 is in turn rotatably mounted on the eccentric disk 6 via the bearing ring 4 .
  • the eccentric disc 6 performs an eccentric movement, which is transmitted to the lower ring of the connecting rod 1 and is thus translated into a translation or oscillation at the connecting rod head 1a.
  • the frequency of these oscillations is determined by the frequency of rotation of the main shaft 12, and hence the frequency of the motor driving that shaft.
  • the amplitude of the oscillation can be adjusted by the trapezoidal spindle 18.
  • the connecting rod has a high mechanical stability and a very high directional stability, ie the vibrations generated in this way run exactly along the direction of the connecting rod, ie the proposed device allows quasi one-dimensional vibrations with an adjustable frequency and an adjustable amplitude along an exactly to generate a defined direction.
  • FIG. 2 shows in a) the vibration unit in a sectional view through the axis of the shaft in an overview, and in b) the details according to A in a).
  • a vibration unit can be arranged below a base plate 28, which serves as a central mounting receptacle for the vibration unit.
  • the bottom plate has a recess 44 through which the connecting rod 1 protrudes freely upwards.
  • the main shaft 12 is mounted via the bearings 11 already mentioned above, with a shaft clamping nut 20 being provided for fastening, which tightens the bearing arrangement 11 in order to minimize the axial and radial play of the main shaft 12.
  • a locking ring 21 that prevents the shaft lock nut 20 from loosening unintentionally.
  • the bearing arrangement 11 is designed, for example, as an O-bearing arrangement.
  • the application of force is outside of the bearing assembly 11.
  • the radial and axial play of the main shaft 12 is adjusted.
  • the only desired vibration is a deflection of the connecting rod head 1a that is essentially perpendicular to the base plate.
  • FIG. 3 shows an exploded view of a second exemplary embodiment of a vibration unit, this time with two eccentric discs 6 mounted on the same shaft the actual effective vibration for the user, and the other connecting rod serves to generate the counter-movement of the counterweight, which will be explained further below.
  • the two eccentric discs 6 are arranged on the same main shaft 12, but there are now a separate sliding surface 12b for each eccentric disk 6 on the main shaft 12, and the adjustment element 13 has two correspondingly assigned cut-out surfaces 13a with opposite inclinations.
  • the two eccentric discs 6 are mounted on the main shaft 12 in a manner analogous to that already described in the first exemplary embodiment, and their eccentricity is controlled by the adjusting element 13 .
  • the eccentricity of the two eccentric disks 6 is phase-shifted by 180°, which is ensured by the opposite inclination of the cut-out surfaces 13a and the corresponding opposite inclination of the two sliding blocks 5 of the respective eccentric disk 6.
  • the adjusting element 13 is actuated by actuating the trapezoidal spindle 18, which in this case is replaced by a retaining ring 23, which prevents the shaft clamping nut 22 from being loosened unintentionally, and a shaft clamping nut 22, which clamps the bearing arrangement 16 in the position receptacle 15, the trapezoidal threaded spindle 18 axially and To store radially free of play, is fixed, shifted in the recess 38 of the main shaft 12, so the one eccentric disc is shifted in a first direction and the other eccentric disc in the opposite direction of the main axis.
  • the second exemplary embodiment also differs from the first, among other things, in that the main shaft 12 is coupled somewhat differently.
  • a V-belt pulley 24 which serves to couple a servomotor to the main shaft via a V-belt.
  • the V-belt pulley 24 is secured by a tension nut.
  • a tension nut For example in the form of a taper lock socket.
  • the second embodiment thus differs from the first embodiment in that it is possible to compensate for unwanted vibrations.
  • unwanted vibrations is understood to mean, in particular, the vibration of the base plate 28 directed in the opposite direction to the desired vibration, as well as other vibrations not directed perpendicularly to the base plate 28 .
  • the unwanted vibrations are caused by the unbalanced eccentric, with the imbalance of the eccentric being primarily caused by the adjustability of the connecting rod and its structure, which cannot be statically compensated for due to the amplitude modulation of the stroke. Fig.
  • FIG. 4 shows the second embodiment in a sectional view, here you can see, among other things, how the two connecting rods are mounted parallel to one another via the two eccentric discs on the same main shaft 12, and how the V-belt pulley 24 for coupling a servo motor protrudes on the left-hand side , and how the trapezoidal spindle for adjusting the eccentricity protrudes on the right-hand side. It can thus be seen that an extremely compact structural solution is provided, in which the two connecting rods that absorb high loads are stably mounted.
  • the bearing surface of the connecting rod head bearing 26 is designed larger than the connecting rod head bearing 27 in order to absorb the higher forces occurring during operation under load (for example under the influence of body weight).
  • the adjusting element 13 lengthens the respective sliding blocks for the crank or for the counterweight in the opposite direction.
  • the two eccentric disks must be rotated axially by 180° to each other so that they can be deflected in opposite directions. This offset arrangement of the eccentric disks 6 can be seen better in FIG.
  • FIG. 5 shows a third exemplary embodiment of a vibration unit in an exploded view, which, in contrast to the second exemplary embodiment, is provided so that the eccentricity of the two connecting rods 1 or the associated eccentric discs can be adjusted individually for both.
  • the main shaft 12 is no longer mounted on one side and is open on the other side for control via the adjusting element 13, but the main shaft is mounted at both ends, as can be seen in particular from FIG. 6, a sectional view the bearing rings 11.
  • the main shaft is no longer designed with a blind hole, but with an axial through-opening, so that individual adjusting elements 13 for adjusting the eccentricity of each eccentric disk 6 can now be inserted from both sides.
  • the third embodiment thus differs from the second embodiment in that the amplitude of both connecting rods can be controlled independently. According to this embodiment, unwanted oscillations can be compensated for by compensation.
  • the main difference in terms of embodiment like. 3 and 4 is that the adjusting element 13 is formed in two parts. Both adjusting elements 13 require a separate O-bearing and control via motors. The left acme spindle 18 controls the deflection of the counterweight, the right acme spindle 18 controls the deflection of the crankshaft. In this embodiment, the main shaft 12 is driven centrally between the two connecting rods 1.
  • the compensation can be set manually, but it is also possible for the trapezoidal spindle or the several trapezoidal spindles to be controlled via an additional servomotor. It is thus possible, for example, to control such a servomotor in a controlled manner, for example via a vibration sensor or a plurality of vibration sensors, and a corresponding controller. In particular, it is also possible to regulate such a control in a self-learning algorithm in such a way that the vibrations measured by the vibration sensors are minimal where they should not occur (e.g. on the floor panel) and where they should occur (for example at the bottom bracket) are maximum or exactly in the desired range.
  • FIG. 6 is a sectional view of the exploded view 5.
  • the length of the two adjusting elements 13 is different: FIG. 6 shows a stroke of the connecting rods of zero.
  • the right-hand adjusting element 13 is moved to the right and the left-hand adjusting element 13 is also moved to the right by rotating the trapezoidal spindle 18; this changes the deflection of the eccentric disks, which can be seen in FIG. 6 by the different position of the play of the sliding cups 9 (the right sliding cups show the play at the top, the left ones at the bottom).
  • FIG. 7 now shows different possibilities for arranging such a vibration unit on a (bicycle) ergometer.
  • a first possibility shown in FIG. 7b and also in FIG. 8 in a side view consists in arranging the vibration unit below a base plate 28 so that the connecting rod 1 passes through a recess in this base plate upwards in a vertical direction.
  • the bottom bracket 29 of the ergometer is selectively slidably mounted in a strictly vertical direction in a linear slide 34 which is mounted on the base plate via a linear guide 35 .
  • This linear slide 34 is firmly connected to the ball bearing 29 at the top and coupled to the connecting rod head 1a at the bottom.
  • a construction is thus provided which selectively allows only vibrations in a strictly vertical direction, and the entire suspension and load of the vibration unit is taken over the front area below the bottom bracket.
  • a vibration unit can be combined with a conventional brake 30, which is coupled via a power transmission element, such as a chain, belt, toothed belt.
  • the artificially generated vibration leads to unpleasant noise emissions, in particular because the base plate or the corresponding legs connected to it transmit the vibrations to the floor and building, etc., but there are also unpleasant noise emissions due to the vibration of other components, such as the brakes in particular, etc.
  • the vibrations cause mechanical damage to the device itself and the other components of the device, as well as other nearby devices to which the vibrations are unintentionally transmitted.
  • such vibrations in the range of up to 50 Hz are suitable for this device.
  • crank bearing is thus fastened to a linear bearing 35 via a carriage 34 , the linear bearing 35 being arranged perpendicular to the base plate 28 .
  • the connecting rod is connected to the linear slide in such a way that a movement directed exclusively perpendicularly to the base plate 28 results.
  • the structure can also be expanded with a second connecting rod and a counterweight 36 as a second carriage on the linear guide implement vibration-compensating.
  • FIG. 7a A further possibility of providing such a vibration device on an ergometer is shown in FIG. 7a.
  • the connecting rod 1 generates a vibration (compare arrow) running essentially strictly in the vertical direction.
  • the connecting rod 1 serves as the sole bearing for the bottom bracket in the vertical direction, so that an extremely slim construction is provided.
  • This rocker 32 is a second bearing of the bottom bracket essentially around the axis 45 of the brake.
  • the rocker 32 has two arms 46, a first arm 46' and a second arm 46". The two arms engage at different ends of the axle 45 on this axle and pivotally support the bottom bracket 29.
  • the rocker 32 allows mobility of the bottom bracket 29 on the bottom bracket in essentially only a vertical direction, so that the strictly vertical vibration is ensured If, for example, the brake is located closer to the base plate or substantially below the bottom bracket of such an ergometer, the rocker 32 should not be attached to the axis of the brake, but to a separate axle bearing approximately at the level of the bottom bracket, just to ensure that the bottom bracket only vertical vibrations are possible.
  • Fig. 7a the center of the connecting rod head 1a is identical to the center of the crank bearing.
  • the crank bearing is only supported by the connecting rod and the swingarm. All forces except those in the direction of the connecting rod are absorbed by the rocker.
  • the adjustable braking force of the brake 30 is transmitted to the crank 33 via the force transmission element 31 .
  • the braking effect can be adjusted by suitable measures known to those skilled in the art, such as gear ratios between the crankshaft and the brake.
  • FIG. 7c A further possibility of providing such a vibration device on an ergometer is shown in FIG. 7c.
  • the vibration device is placed below the brake and the bottom bracket is virtually free-floating.
  • the rocker 32 is in turn attached to the axle 45 of the brake and supports the bottom bracket 29 in such a way that it can only be moved in the vertical direction.
  • the bottom bracket 29 is now supported in the vertical direction in this construction in that the rocker 32 has a strut which is directed obliquely downwards towards the vibration device and which is coupled to one of the two connecting rods of the vibration device via a connecting rod receptacle 37 .
  • the rocker 32 comprises a means for coupling the vibration of the vibration device and the geometric configuration and the levers used ensure that the vibration, although applied to the device in an oblique direction on the connecting rod, is translated into a strictly vertical vibration at the bottom bracket. Compare in particular also FIG. 9a, in which this construction is shown, only the rocker 32 with the strut 46 being illustrated for better visibility.
  • the connecting rod is movably connected to the rocker at the connecting rod receptacle 37 of the rocker.
  • a corresponding counterweight 36 is advantageously mounted in a very similar manner and is controlled by the second connecting rod, which is phase-shifted by 180°. See in particular Fig. 9b, which shows this construction of the counterweight and omits the rocker arm for the bottom bracket.
  • the counterweight 36 or rather the weight head 50 of the counterweight, is attached to the axle 45 of the brake via a first strut 47, similar to the swing arm.
  • a first strut 47 similar to the swing arm.
  • there is another strut 49 directed downwards, and a third strut 48 which brings the counterweight connecting rod seat to the axis 45 of the brake for the necessary to ensure storage stability.
  • the counterweight, in particular its weight head 50 is thus optimally space-saving and nevertheless arranged in an excellent manner between the two arms 46' and 46" of the rocker, and can also provide the optimal compensation effect there.
  • FIG. 7 A further exemplary embodiment of an ergometer is illustrated in FIG.
  • the rocker is designed with multiple struts on both sides, including additional vertical struts and horizontal struts.
  • the connection to the connecting rod 1 is analogous to that described above in connection with FIGS. 7 and 9.
  • the counterweight is also mounted similarly, here the weight head 50 is constructed as a layered body, which makes it possible to also attach to the mass of the weight head, if necessary make adjustments on site by adding more layers.
  • the weight head 50 is designed as it were as a fork, the arms of which at least partially encompass the bottom bracket 29 at the top and bottom.
  • the counterweight can be arranged as close as possible and in the region of the bottom bracket, so that the vibration can be optimally compensated.
  • the counterweight is mounted, in turn coupled, via a mounting body 47, which is also designed with a plurality of struts via connecting rod receptacle 37a for the counterweight to the vibrating unit.
  • this mounting body penetrates the struts of the swingarm and is thus optimally stored in a space-saving and compact manner.
  • the servomotor 52 with the associated V-belt 51 for setting the trapezoidal thread nut and correspondingly for setting the eccentricity and the associated amplitude of the vibration.
  • the motor 54 for driving the main shaft 12 and the corresponding V-belt 53 can also be seen.

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  • 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)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

L'invention concerne un ergomètre de vélo comprenant au moins un dispositif de pédale pour un utilisateur et comprenant une unité à vibration, caractérisé en ce que l'unité à vibration fait vibrer le dispositif de pédale et en ce que l'ergomètre possède, en plus de l'unité à vibration, un dispositif de compensation qui compense au moins partiellement, au moyen d'une interférence négative, les vibrations provenant de l'unité à vibration à l'extérieur du dispositif de pédale.
EP22709728.4A 2021-03-12 2022-03-03 Dispositif de compensation pour ergomètre comportant une unité à vibration et son utilisation dans un ergomètre à vibration pour les membres supérieurs et inférieurs Pending EP4304744A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP21162431 2021-03-12
PCT/EP2022/055396 WO2022189252A1 (fr) 2021-03-12 2022-03-03 Dispositif de compensation pour ergomètre comportant une unité à vibration et son utilisation dans un ergomètre à vibration pour les membres supérieurs et inférieurs

Publications (1)

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EP4304744A1 true EP4304744A1 (fr) 2024-01-17

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EP22709728.4A Pending EP4304744A1 (fr) 2021-03-12 2022-03-03 Dispositif de compensation pour ergomètre comportant une unité à vibration et son utilisation dans un ergomètre à vibration pour les membres supérieurs et inférieurs

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EP (1) EP4304744A1 (fr)
WO (1) WO2022189252A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1196035B (it) 1983-05-12 1988-11-10 Iriondo Sa Bicicletta da ginnastica statica
US4570927A (en) 1983-12-15 1986-02-18 Wright State University Therapeutic device
DE19639477A1 (de) 1996-09-26 1998-04-02 Latz Gmbh Therapievorrichtung
DE10225323B4 (de) 2002-06-06 2004-07-08 Romert Gmbh Vorrichtung mit einer Arbeits- und Funktionseinheit
DE10241340B4 (de) 2002-09-04 2006-01-12 Dr.Dr.Kobelt & Dr.Otto Gbr (Vertretunsberechtigter Gesellschaft Herr Dr. Dr.Reinhard Kobelt 41469 Neuss) Biomechanisches Muskelstimulationsgerät
NL1021619C2 (nl) 2002-10-10 2004-04-14 Dirk Meile Marcel Tamminga Fitness-inrichting.
DE10313524B3 (de) 2003-03-26 2004-09-02 Sport-Thieme Gmbh Trainingsgerät zur Körperertüchtigung
DE102004063495B3 (de) 2004-12-30 2006-04-27 Quarz, Dieter, Dipl.-Ing. Vibrationsradergometer
WO2009024877A1 (fr) 2007-08-22 2009-02-26 Jacques Carl Cronje Dispositif d'exercice
AP2011005526A0 (en) 2008-06-16 2011-02-28 Power Plate Int Ltd Training system comprising a cycling device.
DE102008028816A1 (de) 2008-06-19 2010-03-25 Dbp Holding Gmbh Trainingsgerät
WO2013138303A1 (fr) 2012-03-14 2013-09-19 Keiser Dennis L Galet tendeur excentrique

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