WO2002068066A1 - An apparatus for physical exercise with magnetic interaction between the parts of which it is made - Google Patents
An apparatus for physical exercise with magnetic interaction between the parts of which it is made Download PDFInfo
- Publication number
- WO2002068066A1 WO2002068066A1 PCT/IB2002/000575 IB0200575W WO02068066A1 WO 2002068066 A1 WO2002068066 A1 WO 2002068066A1 IB 0200575 W IB0200575 W IB 0200575W WO 02068066 A1 WO02068066 A1 WO 02068066A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- support part
- relative
- user
- equilibrium
- corresponding support
- Prior art date
Links
Classifications
-
- 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
- A63B22/02—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills
- A63B22/0207—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means
- A63B22/0214—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with movable endless bands, e.g. treadmills having shock absorbing means between the belt supporting deck and the 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
-
- 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
- A63B22/0025—Particular aspects relating to the orientation of movement paths of the limbs relative to the body; Relative relationship between the movements of the limbs
-
- 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
- A63B21/06—User-manipulated weights
- A63B21/062—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces
- A63B21/0626—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means
- A63B21/0628—User-manipulated weights including guide for vertical or non-vertical weights or array of weights to move against gravity forces with substantially vertical guiding means for vertical array of weights
-
- 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
-
- 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
- A63B22/16—Platforms for rocking motion about a horizontal axis, e.g. axis through the middle of the platform; Balancing drums; Balancing boards or the like
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/08—Characteristics of used materials magnetic
Definitions
- the present invention relates to apparatuses for personal physical exercise, that is to say, more or less complex pieces of equipment or machines, designed for carrying out motor activity for the most widespread purposes, such as simple recreation, to achieve and maintain physical fitness and well-being, rehabilitation and gymnastics or sports training.
- the present invention relates in particular to an apparatus of the afore- mentioned type which uses stationary magnet fields which interact between the parts of which it is made.
- the aim of the present invention is, therefore, to provide the application of magnetism to an apparatus for physical exercise, in order to obtain, selectively or in combination according to a criterion which may be defined at will: support, more or less extensive elastically yielding suspension of parts of the equipment susceptible of movement; damping of impulsive forces exchanged by the parts of the apparatus and/or the user and the apparatus; damping of mechanical vibrations; sound and electrical insulation; accumulation and return of energy in a conservative or dissipated manner.
- the present invention achieves the preset aims by providing a physical exercise apparatus for recreational, rehabilitative, gymnastic or sports purposes, characterised in that it comprises at least one mobile part, and at least one support part, interacting by means of forces generated by one or more stationary magnetic fields in between them.
- a physical exercise apparatus for recreational, rehabilitative, gymnastic or sports purposes, characterised in that it comprises at least one mobile part, and at least one support part, interacting by means of forces generated by one or more stationary magnetic fields in between them.
- the above-mentioned dynamic equilibrium may involve relative mobility of the parts in question with varying degrees, and may, for example, mean in some types of equipment only a relative stationary condition of the rigid part and the support part, with limited translation and/or rotation movements, instantaneously oscillating around a shared equilibrium position.
- said dynamic equilibrium may involve real movements of one part relative to another.
- Figure 1 is an elevation view of a first gymnastic exercise apparatus made in accordance with the present invention, in the form of a machine conventionally known as a "treadmill";
- Figure 2 is an elevation view of a second gymnastic exercise apparatus made in accordance with the present invention and with a footrest for the exchange of force between the user and the apparatus;
- FIG. 3 is a scaled up detail of the apparatus illustrated in Figure 2;
- Figure 4 is a front view of the apparatus illustrated in Figure 1, seen in direction Z as indicated by the arrow A;
- Figures 5 and 6 are respectively an elevation view and a top plan view of a first embodiment of a user support part of a generic exercise apparatus;
- Figure 7 is a side view of a second embodiment of the support part illustrated in Figures 5 and 6;
- Figure 8 is a perspective assembly view of a third embodiment of an exercise apparatus made in accordance with the present invention.
- FIGS 9, 10, 11 are schematic illustrations of some parts of exercise apparatuses made in accordance with the present invention.
- Figure 12 is a scaled-up view of a detail from Figure 1;
- Figure 13 is a schematic diagram of the operating principle of a possible embodiment of the apparatus made in accordance with the present invention.
- Figure 14 is construction detail of a part of an actual apparatus of the type illustrated in Figure 13;
- Figure 15 is a partial assembly view of an exercise machine incorporating the apparatus illustrated in the previous Figures 13 and 14.
- the numeral 1 denotes as a whole a physical exercise apparatus for recreational, rehabilitative, gymnastic or sports purposes which is represented, by way of example and without limiting the scope of application, by a generic exercise machine known conventionally as a "treadmill”.
- the apparatus 1 basically comprises a user support part, in the form of a horizontal platform 22, fitted with a sliding belt 28, horizontally mobile at a suitable speed, on which the user walks or runs.
- the sliding belt 28 is an endless flexible belt looped around two parallel rollers 29, 30, at least one of which is driven by a motor.
- a rigid part in particular having the shape of a flat, rectangular plate 2, is inserted, in a horizontal direction Z, between the rollers 29 and 30, whilst, in the vertical direction Y, it is located between the sliding belt 28 and a horizontal base 4 or machine frame below.
- Pairs of permanent magnets 3 are located at opposite positions on the plate 2 and the horizontal base .
- the permanent magnets 3 are fixed and such that the opposing polarities are identical and generate a magnetic field which exerts repelling forces between the plate 2 and the base 4 (see also Figure 12) . These forces push the plate upwards until it reaches a condition of equilibrium with its own weight, in the vertical direction Y, in which the plate 2 levitates above the base 4, which therefore supports it without physical contact.
- Figure 4 illustrates how the pairs of permanent magnets 3 can be located between sides 31 of the platform 22 and opposite, vertical sides 32 of the base 4, to obtain a lateral confinement of the platform 22, in one or two horizontal directions X, Z, at right angles, of the space passing through the plane on which the platform 22 lies.
- Levitation and magnetic confinement allow the damping of the impact force of the user's foot against the rigid platform 22, generated by walking or running movements, which is particularly useful for reducing the risk of trauma to the bone and muscular system, or vice versa, in the case of rehabilitation this promotes a safe and more rapid recovery of movement by the person affected by an illness or accident.
- Levitation and magnetic confinement also allow the damping of mechanical vibrations induced on the platform 22 by the user exercising; sound and electrical insulation relative to the base 4 structure; and the return of energy in a conservative fashion by the platform 22 - base 4 system which, thanks to the magnetic field, is able to. accumulate the mechanical energy received at the moment of impact, then return it at a later time.
- Figures 5 and 6 illustrate how it is possible to make a saddle 25, for example of a "bike” - which includes in its structure a rigid part 2 with some permanent magnets 3 and is attached to a fixed support column 33, free to oscillate about a horizontal axis 34.
- the column 33 has a support 35 with permanent magnets 33 respectively opposite the first magnets.
- the magnetic field between the pairs of permanent magnets 3 may, therefore, be used to maintain the equilibrium of the saddle 25 during rotation about the axis 34.
- the user support parts which are completely different, and which may be, for example, a seat 23 and/or a backrest 24 of a chair 26 of the type which are normally used on many pieces of gymnastic exercise equipment and exercise machines.
- the seat 23 and backrest 24, which may be made in separate parts 23a, 23b, 24a, 24b, respectively fitted with the opposite pairs of permanent magnets 3, polarised and mounted in such a way as to keep the parts 23a, 23b, 24a, 24b separate and out of contact.
- Figure 8 illustrates how the use of a magnetic field interacting between pairs of permanent magnets 3 and even combined with other damping means 36 of various types - elastic, mechanical, solid or fluid - may be used for a tilting or elastic footrest 21.
- the footrest 21 can also be included in a structure 4 of a more complex machine, for example an isotonic machine, subject to the user' s muscular strength, as schematically illustrated in Figures 2 and 3, where a footrest 21 mounted in such a way that it turns about a horizontal axis 34 is held in a position of equilibrium during rotation about the axis 34 by the effect of the opposing rotational torques generated by the magnetic repulsion (or attraction - depending on the polarities selected) of pairs of permanent magnets 3, set opposite one another and symmetrically relative to the axis of rotation 34.
- a footrest 21 mounted in such a way that it turns about a horizontal axis 34 is held in a position of equilibrium during rotation about the axis 34 by the effect of the opposing rotational torques generated by the magnetic repulsion (or attraction - depending on the polarities selected) of pairs of permanent magnets 3, set opposite one another and symmetrically relative to the axis of rotation 34.
- FIG. 9 schematically illustrates handlebars 27, which may be gripped by the apparatus 1 user.
- the handlebars are fitted with the permanent magnets 3 to dampen the travel relative to a guide and support column 38.
- Figure 11 shows how the permanent magnets 3 can be positioned below a set of weights 39, both to dampen the impact on the downstroke and to facilitate the initial detachment when lifting.
- the magnets 3 may also be positioned at any point on the kinematic chain which links the driving force applied by the user's muscles to the resistive load applied by the apparatus 1. This can be done, for example ( Figure 10) by inserting the pairs of permanent magnets 3 between two adjacent parts of the kinematic chain, connected (for example a lever, or handle, a pedal crank, or any other actuator part 40 and a part 41 integral with the resistive load) in such a way as to create, for example, a kind of elastic magnetic joint, which allows the dampened transmission of the force between the two parts 40, 41 of the chain.
- the latter statement allows an explanation of how the magnetic field can be controlled in terms of its specific characteristics, to achieve operation which is particularly effective in the management of the various types of exercise apparatuses 1, that is to say, control of the position of the mobile parts affected by the magnetic field; the position control subordinate to the force exchanged by the user and the exercise apparatus 1; the position control subordinate to the user's weight and the force exchanged by the users and the apparatus 1; or any combination of control of the above-mentioned mechanical characteristics .
- Figure 13 illustrates an apparatus 1 of said type comprising damper means 36 which are operatively connected to each electromagnet 3 and consist of elastic elements 45 placed parallel with each electromagnet 3 so as to allow relative movements of the part 2 and the support part 4 which are elastically opposed and suitably dampened.
- the elastic means can be made in many different ways, for example with mechanical spring 45 systems, or elastic supports of the type comprising rubber blocks or air cushions.
- the use of a system of helical springs 45 is preferable, since it allows constant rigidity, compactness and easy substitution for modifying or customising the characteristics of the apparatus 1 according to the requirements of specific categories of users.
- the apparatus 1 may also comprise position feedback control means 47.
- the apparatus 1 in Figure 13 comprises a position sensor 46, preferably of the inductive type, designed to detect the extent of the relative movements of the mobile part 2 - in this case the footrest 21 of a "treadmill" - and the support part 4, and to exchange suitable signals with the position feedback control means 47 which drive each electromagnet 3 accordingly.
- Figure 14 illustrates a real construction detail of the apparatus 1 in the basic drawing in Figure 1, in particular with stroke limiter means 48, designed to limit the extent of the relative movement of the part 2 and the support part .
- the stroke limiter means 48 are adjustable and comprise a screw 49 with a nut and lock nut 50.
- Figure 15 illustrating a partial assembly view of a prototype of a treadmill fitted with the apparatus made in accordance with the present invention, shows how the apparatus 1 not only fulfils all of the preset aims, but is also compact and relatively simple to apply to devices and machines for gymnastic exercise, of various types and sizes.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02712190A EP1363710A1 (en) | 2001-02-27 | 2002-02-25 | An apparatus for physical exercise with magnetic interaction between the parts of which it is made |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001BO000105A ITBO20010105A1 (en) | 2001-02-27 | 2001-02-27 | APPARATUS FOR PHYSICAL EXERCISE WITH MAGNETIC INTERACTION BETWEEN CONSTITUTIVE PARTS |
ITBO2001A000105 | 2001-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002068066A1 true WO2002068066A1 (en) | 2002-09-06 |
Family
ID=11439147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2002/000575 WO2002068066A1 (en) | 2001-02-27 | 2002-02-25 | An apparatus for physical exercise with magnetic interaction between the parts of which it is made |
Country Status (4)
Country | Link |
---|---|
US (1) | US20030148853A1 (en) |
EP (1) | EP1363710A1 (en) |
IT (1) | ITBO20010105A1 (en) |
WO (1) | WO2002068066A1 (en) |
Cited By (3)
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---|---|---|---|---|
EP1400263A1 (en) | 2002-08-27 | 2004-03-24 | TECHNOGYM S.p.A. | A damping support device for an exercise apparatus |
CN109908545A (en) * | 2017-12-13 | 2019-06-21 | 张仲甫 | Override type shaking device |
EP3669954A1 (en) * | 2018-12-18 | 2020-06-24 | Zhejiang IUBU Sports Goods Co., Ltd. | Shock absorption mechanism for treadmill |
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US7119264B2 (en) * | 2004-09-20 | 2006-10-10 | Michael Van Dyk | Magnetic return pedal for percussion instruments |
US7288050B2 (en) * | 2005-08-11 | 2007-10-30 | Murphy William T | Magnetically resistive exercise device for rehabilitative therapy |
DE502005008008D1 (en) * | 2005-12-30 | 2009-10-08 | Integrated Dynamics Eng Gmbh | Hybrid stiffness module for vibration isolation |
US20080161170A1 (en) * | 2006-12-20 | 2008-07-03 | Lumpee Properties, Ltd. | Magnetically guided exercise devices and systems |
US8864627B2 (en) | 2009-03-17 | 2014-10-21 | Woodway Usa, Inc. | Power generating manually operated treadmill |
US9782618B2 (en) * | 2012-08-03 | 2017-10-10 | Michael Curry | Tilting exercise device |
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EP3974036A1 (en) | 2013-12-26 | 2022-03-30 | iFIT Inc. | Magnetic resistance mechanism in a cable machine |
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US10258828B2 (en) | 2015-01-16 | 2019-04-16 | Icon Health & Fitness, Inc. | Controls for an exercise device |
US10010755B2 (en) | 2015-01-16 | 2018-07-03 | Icon Health & Fitness, Inc. | Cushioning mechanism in an exercise machine |
US10537764B2 (en) | 2015-08-07 | 2020-01-21 | Icon Health & Fitness, Inc. | Emergency stop with magnetic brake for an exercise device |
US10953305B2 (en) | 2015-08-26 | 2021-03-23 | Icon Health & Fitness, Inc. | Strength exercise mechanisms |
WO2017062504A1 (en) | 2015-10-06 | 2017-04-13 | Woodway Usa, Inc. | Manual treadmill and methods of operating the same |
US10272317B2 (en) | 2016-03-18 | 2019-04-30 | Icon Health & Fitness, Inc. | Lighted pace feature in a treadmill |
US10561894B2 (en) | 2016-03-18 | 2020-02-18 | Icon Health & Fitness, Inc. | Treadmill with removable supports |
US10493349B2 (en) | 2016-03-18 | 2019-12-03 | Icon Health & Fitness, Inc. | Display on exercise device |
US10293211B2 (en) | 2016-03-18 | 2019-05-21 | Icon Health & Fitness, Inc. | Coordinated weight selection |
US10625137B2 (en) | 2016-03-18 | 2020-04-21 | Icon Health & Fitness, Inc. | Coordinated displays in an exercise device |
US10252109B2 (en) | 2016-05-13 | 2019-04-09 | Icon Health & Fitness, Inc. | Weight platform treadmill |
US10471299B2 (en) | 2016-07-01 | 2019-11-12 | Icon Health & Fitness, Inc. | Systems and methods for cooling internal exercise equipment components |
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US10441844B2 (en) | 2016-07-01 | 2019-10-15 | Icon Health & Fitness, Inc. | Cooling systems and methods for exercise equipment |
KR101695136B1 (en) * | 2016-07-13 | 2017-01-10 | 김형돈 | Running machine |
US10500473B2 (en) | 2016-10-10 | 2019-12-10 | Icon Health & Fitness, Inc. | Console positioning |
US10376736B2 (en) | 2016-10-12 | 2019-08-13 | Icon Health & Fitness, Inc. | Cooling an exercise device during a dive motor runway condition |
TWI646997B (en) | 2016-11-01 | 2019-01-11 | 美商愛康運動與健康公司 | Distance sensor for console positioning |
US10625114B2 (en) | 2016-11-01 | 2020-04-21 | Icon Health & Fitness, Inc. | Elliptical and stationary bicycle apparatus including row functionality |
TWI637770B (en) | 2016-11-01 | 2018-10-11 | 美商愛康運動與健康公司 | Drop-in pivot configuration for stationary bike |
US10661114B2 (en) | 2016-11-01 | 2020-05-26 | Icon Health & Fitness, Inc. | Body weight lift mechanism on treadmill |
CN108114403A (en) * | 2016-11-29 | 2018-06-05 | 浙江捍康健康科技有限公司 | A kind of adaptive treadmill of magnetic suspension |
TWI680782B (en) | 2016-12-05 | 2020-01-01 | 美商愛康運動與健康公司 | Offsetting treadmill deck weight during operation |
US10702736B2 (en) | 2017-01-14 | 2020-07-07 | Icon Health & Fitness, Inc. | Exercise cycle |
TWI722450B (en) | 2017-08-16 | 2021-03-21 | 美商愛康運動與健康公司 | System for opposing axial impact loading in a motor |
US10729965B2 (en) | 2017-12-22 | 2020-08-04 | Icon Health & Fitness, Inc. | Audible belt guide in a treadmill |
US10981032B2 (en) * | 2018-12-10 | 2021-04-20 | Erica Randleman | Mobile exercise platform |
USD930089S1 (en) | 2019-03-12 | 2021-09-07 | Woodway Usa, Inc. | Treadmill |
CN110170149A (en) * | 2019-06-14 | 2019-08-27 | 上海小莫网络科技有限公司 | Suspension support system and treadmill |
CN110237492A (en) * | 2019-06-14 | 2019-09-17 | 上海小莫网络科技有限公司 | Treadmill |
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FR2502492A1 (en) * | 1981-03-27 | 1982-10-01 | Mainguy Bernard | Device for re-education of knee and ankle - comprises circular disc supported in selected position by pairs of tenons and interengaging magnets |
US4486729A (en) * | 1982-06-23 | 1984-12-04 | Lee Hae Chung | Device to make an object float through the utilization of magnets |
US4553230A (en) * | 1984-08-20 | 1985-11-12 | Paulson Rollie W | Vibration free turntable apparatus |
US4849666A (en) * | 1987-12-29 | 1989-07-18 | The Charles Stark Draper Laboratory, Inc. | Electromagnetic isolator/actuator system |
US5014981A (en) * | 1986-10-14 | 1991-05-14 | Prelich John G | Exercising devices using magnetic resistance |
FR2705416A1 (en) * | 1993-05-19 | 1994-11-25 | Hutchinson | Anti-vibration installation with magnetic vibrators for active mount |
US5473963A (en) * | 1994-11-17 | 1995-12-12 | Aeschbach; James F. | Magnetic bicycle pedal foot retainer |
US5993358A (en) * | 1997-03-05 | 1999-11-30 | Lord Corporation | Controllable platform suspension system for treadmill decks and the like and devices therefor |
-
2001
- 2001-02-27 IT IT2001BO000105A patent/ITBO20010105A1/en unknown
-
2002
- 2002-02-25 EP EP02712190A patent/EP1363710A1/en not_active Withdrawn
- 2002-02-25 US US10/311,712 patent/US20030148853A1/en not_active Abandoned
- 2002-02-25 WO PCT/IB2002/000575 patent/WO2002068066A1/en not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2502492A1 (en) * | 1981-03-27 | 1982-10-01 | Mainguy Bernard | Device for re-education of knee and ankle - comprises circular disc supported in selected position by pairs of tenons and interengaging magnets |
US4486729A (en) * | 1982-06-23 | 1984-12-04 | Lee Hae Chung | Device to make an object float through the utilization of magnets |
US4553230A (en) * | 1984-08-20 | 1985-11-12 | Paulson Rollie W | Vibration free turntable apparatus |
US5014981A (en) * | 1986-10-14 | 1991-05-14 | Prelich John G | Exercising devices using magnetic resistance |
US4849666A (en) * | 1987-12-29 | 1989-07-18 | The Charles Stark Draper Laboratory, Inc. | Electromagnetic isolator/actuator system |
FR2705416A1 (en) * | 1993-05-19 | 1994-11-25 | Hutchinson | Anti-vibration installation with magnetic vibrators for active mount |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1400263A1 (en) | 2002-08-27 | 2004-03-24 | TECHNOGYM S.p.A. | A damping support device for an exercise apparatus |
US7001312B2 (en) | 2002-08-27 | 2006-02-21 | Technogym S.P.A. | Support device, with damping, for a mobile part of an exercise apparatus |
CN109908545A (en) * | 2017-12-13 | 2019-06-21 | 张仲甫 | Override type shaking device |
CN109908545B (en) * | 2017-12-13 | 2020-11-17 | 张仲甫 | Pedal type vibration device |
EP3669954A1 (en) * | 2018-12-18 | 2020-06-24 | Zhejiang IUBU Sports Goods Co., Ltd. | Shock absorption mechanism for treadmill |
Also Published As
Publication number | Publication date |
---|---|
EP1363710A1 (en) | 2003-11-26 |
ITBO20010105A1 (en) | 2002-08-27 |
ITBO20010105A0 (en) | 2001-02-27 |
US20030148853A1 (en) | 2003-08-07 |
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