WO2020084186A1 - Dispositif inertiel compact d'entraînement musculaire - Google Patents

Dispositif inertiel compact d'entraînement musculaire Download PDF

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Publication number
WO2020084186A1
WO2020084186A1 PCT/ES2019/070724 ES2019070724W WO2020084186A1 WO 2020084186 A1 WO2020084186 A1 WO 2020084186A1 ES 2019070724 W ES2019070724 W ES 2019070724W WO 2020084186 A1 WO2020084186 A1 WO 2020084186A1
Authority
WO
WIPO (PCT)
Prior art keywords
reel
inertial device
rope
main shaft
coupling
Prior art date
Application number
PCT/ES2019/070724
Other languages
English (en)
Spanish (es)
Inventor
Enrique Paz Domonte
Ana MEJÍAS SACALUGA
Michael William PÉREZ TRIGANO
Manuel MONTES PÉREZ
Original Assignee
Micaton Ergonomics, S.L.
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 Micaton Ergonomics, S.L. filed Critical Micaton Ergonomics, S.L.
Priority to EP19876019.1A priority Critical patent/EP3871741A4/fr
Priority to CN201980085495.3A priority patent/CN113226488A/zh
Priority to US17/288,832 priority patent/US20210353994A1/en
Publication of WO2020084186A1 publication Critical patent/WO2020084186A1/fr

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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
    • A63B21/22—Resisting devices with rotary bodies
    • A63B21/225—Resisting devices with rotary bodies with flywheels
    • A63B21/227—Resisting devices with rotary bodies with flywheels changing the rotational direction alternately
    • 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
    • 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
    • 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
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/02—Games or sports accessories not covered in groups A63B1/00 - A63B69/00 for large-room or outdoor sporting games
    • A63B71/023—Supports, e.g. poles
    • A63B2071/026—Supports, e.g. poles stabilised by weight
    • A63B2071/027—Supports, e.g. poles stabilised by weight using player's own weight, e.g. on a platform
    • 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
    • A63B21/154—Using flexible elements for reciprocating movements, e.g. ropes or chains using special pulley-assemblies
    • A63B21/155—Cam-shaped pulleys or other non-uniform pulleys, e.g. conical
    • 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
    • A63B21/16—Supports for anchoring force-resisters
    • A63B21/1618—Supports for anchoring force-resisters on a door or a door frame
    • A63B21/1663—Supports for anchoring force-resisters on a door or a door frame for anchoring between a door and the door frame
    • 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
    • A63B21/16—Supports for anchoring force-resisters
    • A63B21/169—Supports for anchoring force-resisters for anchoring on or against a wall
    • 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
    • A63B21/4001—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor
    • A63B21/4009—Arrangements for attaching the exercising apparatus to the user's body, e.g. belts, shoes or gloves specially adapted therefor to the waist
    • 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
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/17—Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00—Measuring of physical parameters relating to sporting activity
    • A63B2220/80—Special sensors, transducers or devices therefor
    • A63B2220/805—Optical or opto-electronic sensors
    • 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
    • A63B2225/20—Miscellaneous features of sport apparatus, devices or equipment with means for remote communication, e.g. internet or the like
    • 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
    • A63B2225/50—Wireless data transmission, e.g. by radio transmitters or telemetry

Definitions

  • the present invention falls within the technical field of gymnastic apparatus for strengthening muscles, more specifically in that of those apparatuses that include resistant devices with rotating bodies, and refers in particular to a compact device for resistance-based muscle training. at a tensile force exerted by inertial discs and which can be used either by a single user or by two users simultaneously.
  • the present invention relates to a training device for training, toning, training and rehabilitation by resistance to pull based on discs or rings of inertia arranged on a rotating axis.
  • the device additionally comprises a grip handle, a transmission element for multiplication of shaft revolutions, and a connecting rope that is jointly connected at one end to a conical transmission drive reel.
  • a concentric or positive phase in which the muscular insertions approach and the movement goes against gravity, so that the muscle shortens or concentrates when contracting
  • an eccentric or negative phase where the muscular insertions are distanced and the movement is generated in favor of gravity, so that the muscle continues to contract, but lengthens.
  • PCT international application with publication number W020150191 18 describes a device for providing constant resistance values against displacement.
  • the device comprises a cylinder connected to a cone or a cam or a pulley of variable diameter, which couples and balances the preselected resistance value of one or more elastic means, such as springs; on one side (cylinder side) by the variable torque generated by a constant externally applied force, and on the other side (cone or cam pulley side or variable diameter side), by appropriately varying the defining geometric characteristics torque, including radii, distances, or angles.
  • European patent application with publication number EP0364954 describes a rowing machine for muscle training that incorporates a planetary or epicyclic gear in conjunction with a disk of inertia to increase the speed of rotation.
  • the North American patent with publication number US2009093350 refers to a transportable sports training and rehabilitation system, based on a shooting body consisting of a handle, a motor or inertia discs and a cylindrical coil in which it is collected and releases a rope, which is hooked at its opposite end to a point, which can be a part of the body of the user or another person.
  • This system has two handles or hooking points, making it possible to invert the active end from which the force is exerted.
  • document US3841627 discloses a transportable sports training and rehabilitation system consisting of two firing corps, one of them being the one that integrates, in addition to a handle, an inertia disk and a cylindrical coil in which a rope is collected and released, which is hooked at its end opposite the second handle.
  • the currently existing devices comprise inertia elements of high weight and dimensions, which also limit the versatility of said device, not allowing it to adapt to different forces and shooting modalities.
  • the object of the invention consists of a compact inertial muscle training device, which basically consists of a shooting body and a transmitting rope or tape, which is jointly connected by one of its ends to the shooting body, while it can join at its opposite end to a fixed point or a fixing element.
  • the draft body is in turn made up of a rotating main axis, at whose respective ends inertia elements, preferably inertia discs, are jointly coupled.
  • a reel mounted jointly and coaxially on the main axis there is a reel, on which the rope is wound.
  • the reel is conical, and at its base of smaller diameter, one end of the rope is joined together.
  • the pull body also incorporates an epicyclic or planetary gear, whose central gear is mounted jointly on the main shaft, with the interposition of a torque limiting clutch.
  • An external casing surrounds and contains the mentioned elements of the shooting body.
  • Said casing has a grommet-type through opening, through which the rope is collected and deployed when winding and unwinding on the reel, and a coupling element, intended to house a handle for pulling the body for manual actuation by the part. of a user.
  • the spinning motion of the reel, actuated by the rope, is transferred to the inertia disks through the planetary gear, with a gear ratio that makes that, with a single turn of the reel, the inertia disk rotates “R” turns.
  • the device is based on the devices known as "flywheel training", of exercise by inertial pulley, but it differs from them thanks to its reduced size and weight, due to the fact that it has internally the gear ratio multiplier of high capacity, of ratio " R ”, which allows to revolutionize the inertia disks R times more than the devices without planetary gear. As a consequence, the apparent moment of inertia of the disks is R 2 with respect to what a gearless device would have.
  • Said smaller inertia disks also manage to lower the center of mass and volume of the device, allowing to build much lower, lighter and cheaper fixing platforms than the platforms of current devices.
  • the fact that the rope winding reel is conical has the main advantage that, when starting the rope unwinding, the required pulling force is less, as it begins to unwind from the part with the largest diameter.
  • the resistance that the reel exerts, and therefore the pulling force necessary to unroll the rope increases progressively, as the radius of the cone decreases.
  • the conical reel facilitates the correct winding of the rope in its collection.
  • the device allows individual use, and shared use.
  • individual use there are two modes of operation: in the first mode, a single user operates the device through the draft body, the rope being fixed at one end to a static element through the anchor element, so that the pull body grabbed by the user moves and the opposite end of the rope remains fixed.
  • the pull body in the second mode, is held anchored by fixing to a static element in the environment and the user pulls on the free end of the rope by a handle linked to the anchoring element.
  • the exercise begins with a shooting phase or concentric phase, in which the user pulls the shooting body through the handle by means of a concentric muscular contraction in which your muscle is shortened.
  • the transmitter rope begins to unroll, rotating the conical reel on which it is wound, which in turn rotates the main shaft on which it is jointly mounted.
  • the inertia element rotates at a number of revolutions "R" times greater than that of the conical reel, with "R” being the reduction ratio.
  • this pulling phase the user makes a physical effort to pull the rope by means of which a progressive acceleration is obtained, both from the movement of the device and an angular acceleration of the inertia discs. Due to this, the inertia discs themselves are loaded with angular momentum, ending this phase when the user reaches the final position of this phase of the exercise, corresponding to the maximum shooting distance.
  • the next phase of exercise development begins when the drive rope has been fully unwound from the conical reel, which stops spinning. At this point, the inertia discs are fully loaded at their maximum angular velocity, and continue to rotate in the same direction.
  • the discs rotating at their maximum speed, drag the planetary gear and this, in turn, the conical reel, which continues to rotate in the same direction.
  • the rope begins to wind over it, starting at the end with the smallest radius, and in the inverse to the previous one, thus beginning the eccentric or collection phase, in which the user must make an eccentric muscular effort to hold the rope so that the reel decelerates and stops at the same point where the exercise began.
  • the length of rope wound on the reel determines the total exercise distance to be performed.
  • the main axis stops, as well as the gear and the reel to which it is jointly linked, the value of the angular speed of the inertia disks being zero.
  • the conical reel is sufficiently loaded with rope so that the user can start a new exercise in the pulling or concentric phase, with the exception that the shaft and gear will turn in the opposite direction this time.
  • Figure 1. Shows a front perspective view of the shooting body and the rope of the inertial device.
  • Figure 2. Shows a rear perspective view of the shooting body.
  • Figure 3. Shows a detailed view of a cross section made in the shooting body.
  • Figure 4. Shows a detailed exploded view of the firing body.
  • Figure 5. Shows a detailed view of the ratchet for the device rope.
  • Figure 6. Shows a view of the device in individual use according to a first option.
  • Figure 7. Shows a view of the device in individual use according to a second option.
  • Figure 8.- Shows a view of the device in shared use.
  • Figure 9. Shows a detailed view of a support platform.
  • Figure 10. Shows a detailed view of the device in use with a built-in pulley.
  • Figure 11.- Shows a view of the device in individual use according to a third option.
  • the compact inertial muscle training device described, shown in figure 1, basically consists of a draft body (1) and a transmitting rope (2), which is jointly connected by one of its ends to the draft body (1), from which it is wound and unwound.
  • the draft body (1) comprises an external casing (3) inside which a main axis (4) rotatable, and of transverse orientation is housed.
  • a central gear of a planetary gear (5) is jointly coupled, which in turn comprises external gears or planets.
  • an inertia element (6) is jointly coupled, consisting in this case of an inertia disk.
  • the opposite end of the main axis (4) incorporates an additional inertia element (7), consisting of another inertia disc jointly connected by its center to said main axis (4), without interposition of any kind gear or intermediate multiplier element.
  • a reel (8) is provided, which in the preferred embodiment described here is a conical reel, which in turn has a smaller diameter sector, to which it is attached jointly one end of the rope (2).
  • This rope (2) is automatically wound and unwound on the reel (8), thereby producing a turn in the main axis (4) on which said reel (8) is jointly and severally mounted.
  • the inertia element (6) accumulates rotational energy from the rotation of the main axis (4).
  • the rotational energy transmitted by said main shaft (4) is multiplied in the planetary gear (5) before being transmitted to the inertia element (6), to which it is jointly coupled.
  • high values of moment of inertia are achieved thanks to the intermediate action of the planetary gear (5).
  • the planetary gear (5) used has a transmission ratio of value 13.5, so that one revolution of the reel (8) causes the inertia element (6) to rotate 13.5 revolutions.
  • the casing (3) for its part comprises a through opening (9) through which the rope (2) passes for its deployment and retraction on the reel (8), as well as a hook (10) projecting from said housing (3) in the vicinity of the through opening (9).
  • the casing (3) also comprises a coupling (11) for temporary connection of the draft body (1) to various external elements.
  • a grip handle (12) is temporarily attachable to said coupling (11) for manual actuation of the draft body (1).
  • the coupling (11) consists of a prominent sector (13) of quadrangular geometry that starts from the casing (3), which has a groove (14) that surrounds the prominent sector (13) perimetrically, intended to house corresponding couplings of the handle (12) or of a fixing element (15) in which it is desired to immobilize the draft body (1), as illustrated in Figure 7.
  • the device also incorporates a ratchet (16), shown in detail in Figure 5, linkable to the rope (2) for adjusting the length that can be rolled up and unrolled on the reel (8).
  • the ratchet (16) has a through hole (17) for coupling an anchoring element, such as a carabiner, which allows connection with external elements such as a handle (18), shown in figure 8, which allows its grip by a second user.
  • the ratchet (16) also incorporates a hook ring (19).
  • a pulley (20) to the rope (2) is also envisaged to increase the resistance of the shot, said pulley (20) being especially indicated in the performance of exercises that involve the work of large muscle groups, such as squats or the lifting of weights, without the need to modify the inertial elements (6, 7).
  • the rope (2) must pass through the pulley (20) and return to the pulling body (1), as illustrated in figure 10, so that the ratchet (16) is fixed to it through of a carabiner insertable in the hook (10).
  • a security element is foreseen to avoid entrapments and return blows at the beginning of the rope collection phase (2).
  • Said element consists, in its preferred embodiment, of a force limiting clutch, made up of a previously calibrated spring and two facing grinding wheels that decouple the main shaft (4) from the central gear of the planetary gear (5), in case of exceeding a previously established value. limit force.
  • the additional incorporation of an externally actionable gear change is foreseen, linked to the central axis (4) and intended to vary the transmission ratio. of the planetary gear (5) to obtain different reduction ratios previously established.
  • the inclusion of a remotely actuated brake to block the rotation of the inertia element (6) and, where appropriate, the additional inertia element (7), is also contemplated in the final neutral phase, which allows the user performing additional isometric (static) exercises, thus increasing the versatility of the device.
  • a revolution counter consisting of an electronic module that detects, by means of a sensor, preferably an optical one, the revolutions and the direction of rotation of the reel (8), to later analyze the working curves and extract parameters such as the caloric consumption made , time, speed, strength, performance, and other parameters. It is also planned to add a wireless transmitter connected to the lap counter to send the data collected by it to a mobile device equipped with a computer application that acts as an operational interface with the user.
  • the platform (21) is foldable and comprises a face with a curved geometry, with a central sector higher than the perimeter edges.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Retarders (AREA)
  • Rehabilitation Tools (AREA)

Abstract

L'invention concerne un dispositif inertiel compact d'entraînement musculaire, formé d'un corps de traction (1) et d'une corde (2) d'actionnement. Le corps de traction (1) comprend à son tour un axe principal (4) pivotant, un moulinet (8) monté sur l'axe principal (4), un élément d'inertie (6) solidarisé avec une extrémité de l'axe principal (4) pour accumuler l'énergie cinétique provenant de la rotation de l'axe principal (4), et un engrenage planétaire (5), qui comprend à son tour un engrenage central monté sur l'axe principal (4) pour multiplier la vitesse de transmission de l'axe principal (4) actionné par le moulinet (8) jusqu'à l'élément d'inertie (6). Dans son mode de réalisation préféré, le moulinet (8) est un moulinet conique qui présente une zone de diamètre inférieur à celui qui est solidarisé avec une extrémité de la corde (2).
PCT/ES2019/070724 2018-10-26 2019-10-25 Dispositif inertiel compact d'entraînement musculaire WO2020084186A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19876019.1A EP3871741A4 (fr) 2018-10-26 2019-10-25 Dispositif inertiel compact d'entraînement musculaire
CN201980085495.3A CN113226488A (zh) 2018-10-26 2019-10-25 紧凑型惯性肌肉训练装置
US17/288,832 US20210353994A1 (en) 2018-10-26 2019-10-25 Compact inertial muscle training device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201831042A ES2756581B2 (es) 2018-10-26 2018-10-26 Dispositivo inercial compacto de entrenamiento muscular
ESP201831042 2018-10-26

Publications (1)

Publication Number Publication Date
WO2020084186A1 true WO2020084186A1 (fr) 2020-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2019/070724 WO2020084186A1 (fr) 2018-10-26 2019-10-25 Dispositif inertiel compact d'entraînement musculaire

Country Status (5)

Country Link
US (1) US20210353994A1 (fr)
EP (1) EP3871741A4 (fr)
CN (1) CN113226488A (fr)
ES (1) ES2756581B2 (fr)
WO (1) WO2020084186A1 (fr)

Cited By (3)

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US11123597B2 (en) * 2019-04-16 2021-09-21 Alexander Gigerl Inertia training box with horizontal inertia wheel
GB2598949A (en) * 2020-09-21 2022-03-23 Chien Ping Kao Resistance supplier for weight training
US11298579B2 (en) 2020-08-26 2022-04-12 Chien-Ping Kao Resistance supplier for weight training

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US11857830B2 (en) * 2018-11-15 2024-01-02 Kynett Holding B.V. Physical training apparatus
US11759667B2 (en) * 2021-08-23 2023-09-19 Yen-Chao LIN Reciprocating unidirectional electromagnetic resistance device
CN113998608B (zh) * 2021-11-22 2023-09-29 贵州电网有限责任公司 一种吊绳辅助器
CN116265045A (zh) * 2021-12-17 2023-06-20 杭州宇树科技有限公司 一种轻型便携式电子拉力器
CN114470621A (zh) * 2022-03-02 2022-05-13 山东舒优特健身科技有限公司 一种多功能离心式阻力训练器
US20230310921A1 (en) * 2022-03-31 2023-10-05 Michael Allen DeGroot Retractable Handheld Exercise Apparatus
USD1030925S1 (en) 2022-04-11 2024-06-11 I-Tech Usa, Inc. Exercise equipment with tread

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EP3871741A4 (fr) 2022-08-03
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US20210353994A1 (en) 2021-11-18
ES2756581A1 (es) 2020-04-27
CN113226488A (zh) 2021-08-06

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