CA2051040C - Magnetic retarding apparatus for an exerciser - Google Patents
Magnetic retarding apparatus for an exerciserInfo
- Publication number
- CA2051040C CA2051040C CA002051040A CA2051040A CA2051040C CA 2051040 C CA2051040 C CA 2051040C CA 002051040 A CA002051040 A CA 002051040A CA 2051040 A CA2051040 A CA 2051040A CA 2051040 C CA2051040 C CA 2051040C
- Authority
- CA
- Canada
- Prior art keywords
- bracket
- wheel
- exerciser
- bolt
- frame
- 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.)
- Expired - Fee Related
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
- A63B21/005—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
- A63B21/0051—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 eddy currents induced in moved elements, e.g. by permanent magnets
-
- 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
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/16—Training appliances or apparatus for special sports for cycling, i.e. arrangements on or for real bicycles
- A63B2069/168—Force transfer through the rim of the wheel
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B23/00—Exercising apparatus specially adapted for particular parts of the body
- A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
- A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
- A63B23/0476—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs by rotating cycling movement
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Electromagnetism (AREA)
- Vascular Medicine (AREA)
- Physics & Mathematics (AREA)
- Cardiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Rehabilitation Tools (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
A magnetic retarding device for an exerciser including a pair of links each having a lower end pivotally coupled to the frams of the exerciser; a bracket pivotally coupled between the upper ends of the links which are arranged such that the bracket moves radially inward and outward of the wheel of the exerciser; a support fixed to the bracket and including one or more magnets disposed in two end walls, the magnets are caused to move radially inward and outward of the wheel when the bracket moves.
Description
FIELD OF THE lNV~llON
The present invention relates to a retarding apparatus, and more particularly to a magnetic retarding apparatus for a cycle exerciser.
BACKGROUND OF THE lNv~N~ lON
In one type of magnetic retarding apparatus, the bridging plate has a first end pivotally coupled to the frame of the exerciser, and has magnets disposed on the second end portion thereof so that the magnets are caused to rotate about the first end thereof. The magnets are not movable radially about the wheel of the exerciser.
The present invention has arisen to provide a novel magnetic retarding apparatus.
SUMMARY
A feature of one embodiment of the present invention is to provide a magnetic retarding apparatus for an exerciser in which the magnets move substantially radially relative to the wheel of the exerciser.
The apparatus according to the present invention includes a pair of links each having a lower end pivotally ~'~
.~ 3 coupled to the frame of the exerciser and each including an upper end between which a bracket is pivotally coupled, the links are arranged such that bracket moves radially inward and outward of the wheel of the exerciser, a sup~ort fixed to the 05 bracket and including a pair of end walls each having one or more magnets disposed therein, the end walls being located on both sides of an outer peripheral edge of the wheel, and a driving device disposed on the frame of the exerciser and coupled to the bracket for driving the bracket to move radially inward and outward of the wheel, such that the magnets are caused to move radially inward and outward of the wheel when the brackrt moves.
The present invention may best be understood through the following description with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of an exerciser in accordance with the present invention;
FIG. 2 is a partial exploded view of the exerciser;
FIG. 3 is a plane view of the exerciser;
FIG. 4 is a schematic view illustrating the dispositions of the poles of the magnets thereof;
FIG. 5 is a block diagram illustrating a control circuit; and FIG. 6 is a schematic view illustrating the relations between the positions of the magnets and time.
DETAILED DESCRIPTION
_____________________ Refferring now to FIGS. 1 & 2 a magnetic retarding in accordance with the present is generally disposed in an exerciser, particularly a cycle exerciser which comprises generally a wheel 10 rotatably supported on a frame 11 thereof.
The frame includes a bar 12 laterally disposed therein and having one end located at the axle of the wheel 10. The bar 12 has two holes 14, 15 formed therein.
A pair of links 20, 21 each has a lower end pivotally coupled to the respective hole 14, 15 of the bar 12 by such as a pin 22 or a bolt 23 so that the links 20, 21 are rotatable about the lower end thereof. A bracket 25 has the end portions pivotally coupled to the upper ends of the links 20, 21 and has two orifices 26 formed therein. A support 30 is substantially U-shaped including a plurality of magnets 32 fixed in the two end wall portions 31 thereof and is fixed to the bracket 25 by such as bolts which extend throung the orifices 26 of the bracket 25. The end wall portions 31 are located on both sides of the outer peripheral edge portion of the wheel 10. The preferable disposition of the poles of the magnets 32 is shown in FIG. 4. A follower 40 has a lower end solidly fixed to the upper end of the link 20 and has a groove 41 formed in the upper end thereof.
A housing 50 is coupled to the frame ll of the B
2~ J ~4~
exerciser by such as a plate 59 and has a bolt 51 rotatably supported therein. The bolt 51 has a pinion 52 fixed on one end thereof and has a guide 53 threadedly engaged thereon. The guide 53 has an extension engaged in the groove 41 of the follower 40 and is arranged such that the guide 53 moves longitll~inAlly along the bolt 51 when the bolt 51 rotates. The follower 40 is caused to move by the movement of the guide 53 so that the bracket 25 can be caused to move substantially radially relative to the wheel 10, in which the links 20,21 are caused to rotate about the lower ends thereof.
The housing 50 also includes a board 55 laterally extended therefrom on which a motor 56 is disposed. A gear 57 is coupled to the spindle of the motor 56 and is engaged with the pinion 52 of the bolt 51 such that the bolt 51 can be caused to rotate by the motor 56. A reduction gearing (not shown) or the like can be coupled between the gear 57 and the pinion 52 in order to determine the rotational speed of the bolt 51. A
variable resistor 58 is disposed on the housing 50. The resistance of the variable resistor 58 is varied according to the relative position of the guide 53 along the bolt 51 and is propagated to the sensor 61 (FIG. 5) so that the relative position of the guide 53 along the bolt 51 can be detected.
In operation, as shown in FIG. 3, when the bolt 51 is caused to rotate by the motor 56, the guide 53 will be caused _5_ 2051040 to move longitudinally along the bolt 51, and in turn, the links 20, 21 will be caused to rotate about the lower ends thereof by the follower 40 such that the suPport 30 move substantially radially relative to the wheel 10 and dotted 05 lines and solid lines in FIG. 3. The resistance applied to the wheel 10 will be increased when the magnets 32 move radially -inward of the wheel of the wheel 10.
Referring next to FIG. 5, the guide 53 is threadedly engaged on the bolt 51 which is driven by the motor 56. A motor control means 60 is coupled between the motor 56 and a micro computer 62 or the like so that the operations of the motor 56 can be controlled by the micro computer 62 via the motor control means 60. The sensor 61 and a positioning means 63 are coupled in series between the motor 56 and the micro computer 62 and are disposed in parallel to the motor control means 60.
The relative position of the guide 53 along the bolt 51 can be controlled by the micro computer 62 via ~he sensor 61 and the positioning mPans 63.
Referring next to FIG. 6, the resistance applied to the wheel 10 can be predetermined via the computer 62. The character "D' in vertical axis represents the radial7y inward distance of the magnets 32 beyond the outer peripheral edge of ; the wheel 10. The resistance applied to the wheel increases when the value of "D" is increased. "T" in lateral axis represents time. In segment OA, the magnets 32 gradually move 7 20S10~0 radially inward of the wheel 10 so that the resistance applied to the wheel 10 increases gradually such that the user may feel like climbing up a hill. In segment AB, the magnets 32 are located, for example, at a most radially inward position of the 05 wheel such that the resistance applied to the wheel is the largest. In segment BC, the magnets 32 move radially outward of the wheel 10 such that the user may feel like cycling down a hill.
Accordingly, the magnets of the magnetic retarding apparatus in accordance with the present invention can be controlled to move radially inward and outward of the wheel.
The foregoing is a description of a specific embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appenbed claims.
The present invention relates to a retarding apparatus, and more particularly to a magnetic retarding apparatus for a cycle exerciser.
BACKGROUND OF THE lNv~N~ lON
In one type of magnetic retarding apparatus, the bridging plate has a first end pivotally coupled to the frame of the exerciser, and has magnets disposed on the second end portion thereof so that the magnets are caused to rotate about the first end thereof. The magnets are not movable radially about the wheel of the exerciser.
The present invention has arisen to provide a novel magnetic retarding apparatus.
SUMMARY
A feature of one embodiment of the present invention is to provide a magnetic retarding apparatus for an exerciser in which the magnets move substantially radially relative to the wheel of the exerciser.
The apparatus according to the present invention includes a pair of links each having a lower end pivotally ~'~
.~ 3 coupled to the frame of the exerciser and each including an upper end between which a bracket is pivotally coupled, the links are arranged such that bracket moves radially inward and outward of the wheel of the exerciser, a sup~ort fixed to the 05 bracket and including a pair of end walls each having one or more magnets disposed therein, the end walls being located on both sides of an outer peripheral edge of the wheel, and a driving device disposed on the frame of the exerciser and coupled to the bracket for driving the bracket to move radially inward and outward of the wheel, such that the magnets are caused to move radially inward and outward of the wheel when the brackrt moves.
The present invention may best be understood through the following description with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of an exerciser in accordance with the present invention;
FIG. 2 is a partial exploded view of the exerciser;
FIG. 3 is a plane view of the exerciser;
FIG. 4 is a schematic view illustrating the dispositions of the poles of the magnets thereof;
FIG. 5 is a block diagram illustrating a control circuit; and FIG. 6 is a schematic view illustrating the relations between the positions of the magnets and time.
DETAILED DESCRIPTION
_____________________ Refferring now to FIGS. 1 & 2 a magnetic retarding in accordance with the present is generally disposed in an exerciser, particularly a cycle exerciser which comprises generally a wheel 10 rotatably supported on a frame 11 thereof.
The frame includes a bar 12 laterally disposed therein and having one end located at the axle of the wheel 10. The bar 12 has two holes 14, 15 formed therein.
A pair of links 20, 21 each has a lower end pivotally coupled to the respective hole 14, 15 of the bar 12 by such as a pin 22 or a bolt 23 so that the links 20, 21 are rotatable about the lower end thereof. A bracket 25 has the end portions pivotally coupled to the upper ends of the links 20, 21 and has two orifices 26 formed therein. A support 30 is substantially U-shaped including a plurality of magnets 32 fixed in the two end wall portions 31 thereof and is fixed to the bracket 25 by such as bolts which extend throung the orifices 26 of the bracket 25. The end wall portions 31 are located on both sides of the outer peripheral edge portion of the wheel 10. The preferable disposition of the poles of the magnets 32 is shown in FIG. 4. A follower 40 has a lower end solidly fixed to the upper end of the link 20 and has a groove 41 formed in the upper end thereof.
A housing 50 is coupled to the frame ll of the B
2~ J ~4~
exerciser by such as a plate 59 and has a bolt 51 rotatably supported therein. The bolt 51 has a pinion 52 fixed on one end thereof and has a guide 53 threadedly engaged thereon. The guide 53 has an extension engaged in the groove 41 of the follower 40 and is arranged such that the guide 53 moves longitll~inAlly along the bolt 51 when the bolt 51 rotates. The follower 40 is caused to move by the movement of the guide 53 so that the bracket 25 can be caused to move substantially radially relative to the wheel 10, in which the links 20,21 are caused to rotate about the lower ends thereof.
The housing 50 also includes a board 55 laterally extended therefrom on which a motor 56 is disposed. A gear 57 is coupled to the spindle of the motor 56 and is engaged with the pinion 52 of the bolt 51 such that the bolt 51 can be caused to rotate by the motor 56. A reduction gearing (not shown) or the like can be coupled between the gear 57 and the pinion 52 in order to determine the rotational speed of the bolt 51. A
variable resistor 58 is disposed on the housing 50. The resistance of the variable resistor 58 is varied according to the relative position of the guide 53 along the bolt 51 and is propagated to the sensor 61 (FIG. 5) so that the relative position of the guide 53 along the bolt 51 can be detected.
In operation, as shown in FIG. 3, when the bolt 51 is caused to rotate by the motor 56, the guide 53 will be caused _5_ 2051040 to move longitudinally along the bolt 51, and in turn, the links 20, 21 will be caused to rotate about the lower ends thereof by the follower 40 such that the suPport 30 move substantially radially relative to the wheel 10 and dotted 05 lines and solid lines in FIG. 3. The resistance applied to the wheel 10 will be increased when the magnets 32 move radially -inward of the wheel of the wheel 10.
Referring next to FIG. 5, the guide 53 is threadedly engaged on the bolt 51 which is driven by the motor 56. A motor control means 60 is coupled between the motor 56 and a micro computer 62 or the like so that the operations of the motor 56 can be controlled by the micro computer 62 via the motor control means 60. The sensor 61 and a positioning means 63 are coupled in series between the motor 56 and the micro computer 62 and are disposed in parallel to the motor control means 60.
The relative position of the guide 53 along the bolt 51 can be controlled by the micro computer 62 via ~he sensor 61 and the positioning mPans 63.
Referring next to FIG. 6, the resistance applied to the wheel 10 can be predetermined via the computer 62. The character "D' in vertical axis represents the radial7y inward distance of the magnets 32 beyond the outer peripheral edge of ; the wheel 10. The resistance applied to the wheel increases when the value of "D" is increased. "T" in lateral axis represents time. In segment OA, the magnets 32 gradually move 7 20S10~0 radially inward of the wheel 10 so that the resistance applied to the wheel 10 increases gradually such that the user may feel like climbing up a hill. In segment AB, the magnets 32 are located, for example, at a most radially inward position of the 05 wheel such that the resistance applied to the wheel is the largest. In segment BC, the magnets 32 move radially outward of the wheel 10 such that the user may feel like cycling down a hill.
Accordingly, the magnets of the magnetic retarding apparatus in accordance with the present invention can be controlled to move radially inward and outward of the wheel.
The foregoing is a description of a specific embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appenbed claims.
Claims (4)
1. A magnetic retarding apparatus for an exerciser, said exerciser comprising a wheel rotatably supported on a frame thereof, said frame including a bar laterally disposed therein;
said magnetic retarding apparatus comprising a pair of links each having a lower end pivotally coupled to said bar of said frame and each including an upper end;
a bracket pivotally coupled between said upper ends of said links which are arranged such that said bracket moves substantially radially inward and outward of said wheel;
a support fixed to said bracket and including a pair of end wall portions each having at least one magnet disposed therein, said end wall portions being located on both sides of an outer peripheral edge of said wheel; and a driving means disposed on said frame of said exerciser and coupled to said bracket for driving said bracket to move substantially radially inward and outward of said wheel, such that said magnets are caused to move substantially radially inward and outward of said wheel when said bracket moves.
said magnetic retarding apparatus comprising a pair of links each having a lower end pivotally coupled to said bar of said frame and each including an upper end;
a bracket pivotally coupled between said upper ends of said links which are arranged such that said bracket moves substantially radially inward and outward of said wheel;
a support fixed to said bracket and including a pair of end wall portions each having at least one magnet disposed therein, said end wall portions being located on both sides of an outer peripheral edge of said wheel; and a driving means disposed on said frame of said exerciser and coupled to said bracket for driving said bracket to move substantially radially inward and outward of said wheel, such that said magnets are caused to move substantially radially inward and outward of said wheel when said bracket moves.
2. An apparatus as claimed in claim 1, wherein said driving means includes a housing fixed on said frame of said exerciser;
a bolt rotatably supported in said housing;
a pinion fixed on one end of said bolt;
a motor disposed in said housing and having a gear fixed to a spindle thereof, said gear being engaged with said pinion of said bolt;
a guide threadedly engaged on said bolt and including an extension; and a follower coupled to said bracket and having a groove formed therein for receiving said extension of said guide;
said guide will be caused to move longitudinally along said bolt when said bolt is driven by said motor so that said bracket can be caused to move.
a bolt rotatably supported in said housing;
a pinion fixed on one end of said bolt;
a motor disposed in said housing and having a gear fixed to a spindle thereof, said gear being engaged with said pinion of said bolt;
a guide threadedly engaged on said bolt and including an extension; and a follower coupled to said bracket and having a groove formed therein for receiving said extension of said guide;
said guide will be caused to move longitudinally along said bolt when said bolt is driven by said motor so that said bracket can be caused to move.
3. An apparatus as claimed in claim 2, wherein said housing includes a board laterally extended therefrom, said motor is disposed on said board.
4. An apparatus as claimed in claim 2, wherein said groove is formed in an upper end of said guide.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002051040A CA2051040C (en) | 1991-09-10 | 1991-09-10 | Magnetic retarding apparatus for an exerciser |
| GB9206784A GB2265553A (en) | 1991-09-10 | 1992-03-27 | Magnetic retarding apparatus for an exerciser |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002051040A CA2051040C (en) | 1991-09-10 | 1991-09-10 | Magnetic retarding apparatus for an exerciser |
| GB9206784A GB2265553A (en) | 1991-09-10 | 1992-03-27 | Magnetic retarding apparatus for an exerciser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2051040A1 CA2051040A1 (en) | 1993-03-11 |
| CA2051040C true CA2051040C (en) | 1996-11-12 |
Family
ID=25674784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002051040A Expired - Fee Related CA2051040C (en) | 1991-09-10 | 1991-09-10 | Magnetic retarding apparatus for an exerciser |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2051040C (en) |
| GB (1) | GB2265553A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2713841B3 (en) * | 1993-12-15 | 1996-05-03 | Hong Chi Wu | Adjustable magnetic braking device. |
| GB2286293A (en) * | 1993-12-23 | 1995-08-09 | London Innovation Limited | Adjustable stator: winding construction: cooling and commutator construction inan electric machine |
| JPH1024137A (en) * | 1996-07-10 | 1998-01-27 | Minoura:Kk | Dynamic apparatus for bicycle |
| EP1498157A1 (en) * | 2003-07-15 | 2005-01-19 | Huang-Tung Chang | Magnetic resistance adjusting device for exerciser |
| US11090522B2 (en) * | 2018-02-13 | 2021-08-17 | Preventive Medical Health Care Co., Ltd. | Eddy current resistance generating device |
| WO2020038612A1 (en) * | 2018-08-23 | 2020-02-27 | Skovgaard & Guldbrand Aps | Eddy current trainer for bicycles |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831942A (en) * | 1973-02-13 | 1974-08-27 | Del Mar Eng Lab | Portable exercise machine |
| DE3315441C2 (en) * | 1983-04-28 | 1986-07-24 | Keiper Dynavit GmbH & Co, 6750 Kaiserslautern | Ergometer |
| JPS63318962A (en) * | 1987-06-23 | 1988-12-27 | 松下電器産業株式会社 | Health device |
| US5051638A (en) * | 1989-12-19 | 1991-09-24 | Nathan Pyles | Magnetically variable air resistance wheel for exercise devices |
-
1991
- 1991-09-10 CA CA002051040A patent/CA2051040C/en not_active Expired - Fee Related
-
1992
- 1992-03-27 GB GB9206784A patent/GB2265553A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB9206784D0 (en) | 1992-05-13 |
| CA2051040A1 (en) | 1993-03-11 |
| GB2265553A (en) | 1993-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 20070910 |