US20060189452A1 - Magnetic resistance device for upright bikes - Google Patents
Magnetic resistance device for upright bikes Download PDFInfo
- Publication number
- US20060189452A1 US20060189452A1 US11/062,836 US6283605A US2006189452A1 US 20060189452 A1 US20060189452 A1 US 20060189452A1 US 6283605 A US6283605 A US 6283605A US 2006189452 A1 US2006189452 A1 US 2006189452A1
- Authority
- US
- United States
- Prior art keywords
- magnets
- fly wheel
- magnetic resistance
- support member
- 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.)
- Abandoned
Links
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- 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
- A63B21/0052—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 induced by electromagnets
-
- 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
Definitions
- the present invention relates to a magnetic resistance device for upright bikes and the device is easily assembled and manufactured and suitable for different types of upright bikes.
- a conventional upright bike 70 with a magnetic resistance device 76 is disclosed in FIG. 9 , and generally includes a bike frame 72 and a transmission device 74 which is connected to the frame 71 and is composed of a drive wheel 742 with a crank connected thereto, and a fly wheel 741 which is rotated by rotation of the crank by the users.
- the magnetic resistance device 76 includes an electric magnet 761 which is composed of silicon steel strips and coils.
- a control device 762 is connected to the magnet 761 so that the user can operate the control device 762 to control the current passing through the magnet 761 to control the magnetic resistance between the magnet 761 and the fly wheel 741 .
- the silicon steel strips have to be made according to the curvature of the fly wheel 741 so as to keep an even gap between the fly wheel 741 and the silicone steel strips.
- the sizes of the fly wheels 741 may vary for different types of upright bikes so that the manufacturers have to prepare different molds for the manufacture. This increases the manufacturing cost.
- FIGS. 10 and 11 Another conventional magnetic resistance upright bike 80 is disclosed in FIGS. 10 and 11 , and includes a frame 82 with a transmission device 84 which includes a drive wheel 841 and a fly wheel 842 which is rotated by the rotation of the crank on the drive wheel 841 by the users.
- a magnetic resistance device 86 is located at a distance from an outer periphery of the fly wheel 842 so as to provide a magnetic resistance to the fly wheel 842 .
- the magnetic resistance device 86 includes a support member 861 on which a plurality of permanent magnets 862 are connected, a spring 863 , a cable 864 , a threaded rod 865 and a nut 866 .
- the spring 863 has one end fixed to the support frame 861 and the other end of the spring 863 is connected to the frame 82 .
- the spring force of the spring 863 can be adjusted by movement of the threaded rod 865 and the cable 864 and in turn to adjust the angle of the support member 861 .
- the spring 863 keeps the support member 861 to have a tendency to maintain a t the position where a certain gap is defined between the periphery of the fly wheel 842 and the magnets 862 connected on the support member 861 .
- a link 865 has one end pivotably connected to a base by a rivet 866 and the other end of the link 865 is connected to the other end of the cable 864 . The user may operate the link 865 to adjust the width of the gap between the support member 861 and the periphery of the fly wheel 842 .
- the pivotable support member 861 cannot keep the gap precisely as desired and the spring 863 has an inherent fatigue problem.
- the present invention intends to provide a magnetic resistance device for an upright bike wherein the magnets are located on two sides of the fly wheel and are manufactured modularized so as to obtain an economical and compact magnetic resistance device.
- the present invention relates to a magnetic resistance upright bike which comprises a frame and a transmission device is connected to the frame.
- the transmission device includes a driving wheel and a fly wheel which is driven by the driving wheel.
- a magnetic resistance device includes a support member fixed on the frame and a magnet assembly connected on the support member. Two magnets are supported on the support member and the fly wheel is rotatably located between the two magnets.
- a circuit board is electrically connected to the two magnets and a control device connected to the circuit board.
- the fly wheel is located between the two magnets so that the magnets are not necessary made in different shapes according to the sizes of the fly wheel, so that the magnet assembly can be made modularized which is less expensive when compared with the conventional magnetic resistance devices.
- FIG. 1 is an exploded view to show the magnetic resistance device and the upright bike of the present invention
- FIG. 2 is a perspective view to show that the magnetic resistance device is connected to the upright bike of the present invention
- FIG. 3 is a side view of perspective view to show the upright bike with the magnetic resistance device of the present invention
- FIG. 4 is an end view to show that the fly wheel is rotatably located between the two magnets of the magnetic resistance device of the present invention
- FIG. 5 shows that the magnetic resistance device is connected to another position relative to the fly wheel
- FIG. 6 shows another embodiment of the support member of the magnetic resistance device of the present invention.
- FIG. 7 shows two sets of the magnetic resistance device of the present invention are used on one upright bike
- FIG. 8 shows another embodiment of the upright bike of the present invention
- FIG. 9 shows a conventional magnetic resistance device on an upright bike
- FIG. 10 shows another conventional magnetic resistance device on an upright bike
- FIG. 11 shows that the support member of the magnetic resistance device in FIG. 10 is pivoted away from the fly wheel.
- the upright bike of the present invention comprises a frame 10 including two posts and a transmission device 20 is connected to the frame 10 .
- the transmission device 20 includes a driving wheel 21 and a fly wheel 23 which is driven by the driving wheel 21 by a belt or a chain.
- the fly wheel 23 is rotatably connected between the two posts and the driving wheel 21 is connected to a crank to which two pedals are connected so that when the user rotates the crank, the fly wheel 23 is rotated by the driving wheel 21 via the belt.
- a magnetic resistance device 30 includes a support member 31 fixed on a transverse bar between the two posts of the frame 10 and a magnet assembly 32 is connected on the support member 31 .
- the magnet assembly 32 includes two magnets 321 , 322 which are supported on the support member 31 .
- the fly wheel 23 is rotatably located between the two magnets 321 , 322 .
- the support member 31 is a U-shaped member including a base plate and two sidewalls, wherein the base plate is fixed on the transverse bar by a bolt and the two magnets 321 , 322 are located on the base plate and between the two sidewalls.
- a circuit board 11 is electrically connected to the two magnets 321 , 322 and a control device 12 connected to the circuit board 11 .
- the user may operate the control device 12 to adjust the current powering the magnets 321 , 322 so as to obtain different magnetic force.
- the magnet resistance device 30 can be independently manufactured regardless of shapes and sizes of the fly wheels 23 .
- the magnet resistance device 30 can be made modularized to reduce the manufacturing cost.
- the position of the magnet resistance device 30 can be moved to any position on the frame 10 as long as the fly wheel 23 goes between the two magnets 321 , 322 .
- the support member 31 is a U-shaped member including a base plate and two sidewalls, wherein the two sidewalls are connected to the shaft of the fly wheel 23 and the two magnets 321 , 322 are located on the base plate.
- the number of the magnet assembly 32 can be arranged in parallel or in series with each other so as to have desired magnetic forces.
- FIG. 8 shows that the fly wheel 23 includes a generator set connected to spokes of the fly wheel 23 , and coils 24 which are located along the periphery of the fly wheel 23 .
- the generator set and the coils can also be fixed on the pedals so as to control the voltages and currents, or magnetic farce to be used.
- the magnets 321 , 322 can be manufactured modularized and the number of the magnets can be adjusted according to the specifications of the fly wheel 23 .
- the magnetic resistance device 30 is installed regardless of the thickness, the diameter or the shape of the fly wheels. Furthermore, the fly wheel 23 is not in contact with the magnets 321 , 322 so that no noise is produced. It is noted that the magnetic resistance device 40 can be installed to either of the drive wheel 21 or the fly wheel 23 to achieve the same purpose.
Abstract
A magnetic resistance upright bike includes a frame and a driving wheel and a fly wheel are connected to the frame wherein the fly wheel is driven by the driving wheel. A magnetic resistance device includes a support member fixed on the frame and a magnet assembly is connected on the support member. The magnet assembly includes two magnets supported on the support member and the fly wheel is rotatably located between the two magnets. A circuit board is electrically connected to the two magnets and a control device is connected to the circuit board. The gap between the fly wheel and the magnets are fixed and the magnetic force can be controlled by adjusting the current powering the magnets.
Description
- The present invention relates to a magnetic resistance device for upright bikes and the device is easily assembled and manufactured and suitable for different types of upright bikes.
- A conventional
upright bike 70 with amagnetic resistance device 76 is disclosed inFIG. 9 , and generally includes abike frame 72 and atransmission device 74 which is connected to the frame 71 and is composed of adrive wheel 742 with a crank connected thereto, and afly wheel 741 which is rotated by rotation of the crank by the users. Themagnetic resistance device 76 includes anelectric magnet 761 which is composed of silicon steel strips and coils. Acontrol device 762 is connected to themagnet 761 so that the user can operate thecontrol device 762 to control the current passing through themagnet 761 to control the magnetic resistance between themagnet 761 and thefly wheel 741. The silicon steel strips have to be made according to the curvature of thefly wheel 741 so as to keep an even gap between thefly wheel 741 and the silicone steel strips. However, the sizes of thefly wheels 741 may vary for different types of upright bikes so that the manufacturers have to prepare different molds for the manufacture. This increases the manufacturing cost. - Another conventional magnetic resistance
upright bike 80 is disclosed inFIGS. 10 and 11 , and includes aframe 82 with atransmission device 84 which includes adrive wheel 841 and afly wheel 842 which is rotated by the rotation of the crank on thedrive wheel 841 by the users. Amagnetic resistance device 86 is located at a distance from an outer periphery of thefly wheel 842 so as to provide a magnetic resistance to thefly wheel 842. Themagnetic resistance device 86 includes asupport member 861 on which a plurality ofpermanent magnets 862 are connected, aspring 863, acable 864, a threadedrod 865 and anut 866. Thespring 863 has one end fixed to thesupport frame 861 and the other end of thespring 863 is connected to theframe 82. The spring force of thespring 863 can be adjusted by movement of the threadedrod 865 and thecable 864 and in turn to adjust the angle of thesupport member 861. Thespring 863 keeps thesupport member 861 to have a tendency to maintain a t the position where a certain gap is defined between the periphery of thefly wheel 842 and themagnets 862 connected on thesupport member 861. Alink 865 has one end pivotably connected to a base by a rivet 866 and the other end of thelink 865 is connected to the other end of thecable 864. The user may operate thelink 865 to adjust the width of the gap between thesupport member 861 and the periphery of thefly wheel 842. However, thepivotable support member 861 cannot keep the gap precisely as desired and thespring 863 has an inherent fatigue problem. - The present invention intends to provide a magnetic resistance device for an upright bike wherein the magnets are located on two sides of the fly wheel and are manufactured modularized so as to obtain an economical and compact magnetic resistance device.
- The present invention relates to a magnetic resistance upright bike which comprises a frame and a transmission device is connected to the frame. The transmission device includes a driving wheel and a fly wheel which is driven by the driving wheel. A magnetic resistance device includes a support member fixed on the frame and a magnet assembly connected on the support member. Two magnets are supported on the support member and the fly wheel is rotatably located between the two magnets. A circuit board is electrically connected to the two magnets and a control device connected to the circuit board.
- The fly wheel is located between the two magnets so that the magnets are not necessary made in different shapes according to the sizes of the fly wheel, so that the magnet assembly can be made modularized which is less expensive when compared with the conventional magnetic resistance devices.
- The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
-
FIG. 1 is an exploded view to show the magnetic resistance device and the upright bike of the present invention; -
FIG. 2 is a perspective view to show that the magnetic resistance device is connected to the upright bike of the present invention; -
FIG. 3 is a side view of perspective view to show the upright bike with the magnetic resistance device of the present invention; -
FIG. 4 is an end view to show that the fly wheel is rotatably located between the two magnets of the magnetic resistance device of the present invention; -
FIG. 5 shows that the magnetic resistance device is connected to another position relative to the fly wheel; -
FIG. 6 shows another embodiment of the support member of the magnetic resistance device of the present invention; -
FIG. 7 shows two sets of the magnetic resistance device of the present invention are used on one upright bike; -
FIG. 8 shows another embodiment of the upright bike of the present invention; -
FIG. 9 shows a conventional magnetic resistance device on an upright bike; -
FIG. 10 shows another conventional magnetic resistance device on an upright bike, and -
FIG. 11 shows that the support member of the magnetic resistance device inFIG. 10 is pivoted away from the fly wheel. - Referring to FIGS. 1 to 4, the upright bike of the present invention comprises a
frame 10 including two posts and atransmission device 20 is connected to theframe 10. Thetransmission device 20 includes adriving wheel 21 and afly wheel 23 which is driven by thedriving wheel 21 by a belt or a chain. Thefly wheel 23 is rotatably connected between the two posts and thedriving wheel 21 is connected to a crank to which two pedals are connected so that when the user rotates the crank, thefly wheel 23 is rotated by thedriving wheel 21 via the belt. - A
magnetic resistance device 30 includes asupport member 31 fixed on a transverse bar between the two posts of theframe 10 and amagnet assembly 32 is connected on thesupport member 31. Themagnet assembly 32 includes twomagnets support member 31. Thefly wheel 23 is rotatably located between the twomagnets support member 31 is a U-shaped member including a base plate and two sidewalls, wherein the base plate is fixed on the transverse bar by a bolt and the twomagnets - A
circuit board 11 is electrically connected to the twomagnets control device 12 connected to thecircuit board 11. The user may operate thecontrol device 12 to adjust the current powering themagnets - Therefore, the
magnet resistance device 30 can be independently manufactured regardless of shapes and sizes of thefly wheels 23. Themagnet resistance device 30 can be made modularized to reduce the manufacturing cost. - As shown in
FIG. 5 , the position of themagnet resistance device 30 can be moved to any position on theframe 10 as long as thefly wheel 23 goes between the twomagnets - As shown in
FIG. 6 , thesupport member 31 is a U-shaped member including a base plate and two sidewalls, wherein the two sidewalls are connected to the shaft of thefly wheel 23 and the twomagnets magnetic resistance device 30 which are electrically connected in parallel with each other to provide more powerful magnetic resistance to thefly wheel 23. As shown inFIG. 7 , the number of themagnet assembly 32 can be arranged in parallel or in series with each other so as to have desired magnetic forces. -
FIG. 8 shows that thefly wheel 23 includes a generator set connected to spokes of thefly wheel 23, andcoils 24 which are located along the periphery of thefly wheel 23. The generator set and the coils can also be fixed on the pedals so as to control the voltages and currents, or magnetic farce to be used. - The
magnets fly wheel 23. Themagnetic resistance device 30 is installed regardless of the thickness, the diameter or the shape of the fly wheels. Furthermore, thefly wheel 23 is not in contact with themagnets drive wheel 21 or thefly wheel 23 to achieve the same purpose. - While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
Claims (4)
1. A magnetic resistance upright bike comprising:
a frame and a transmission device connected to the frame, the transmission device including a driving wheel and a fly wheel which is driven by the driving wheel;
a magnetic resistance device including a support member fixed on the frame and a magnet assembly connected on the support member, the magnet assembly including two magnets which are supported on the support member, one of the drive wheel and the fly wheel rotatably located between the two magnets, and
a circuit board electrically connected to the two magnets and a control device connected to the circuit board.
2. The bike as claimed in claim 1 , wherein the support member is a U-shaped member including a base plate and two sidewalls, the base plate is fixed on the frame and the two magnets are located on the base plate and between the two sidewalls.
3. The bike as claimed in claim 1 , wherein the support member is a U-shaped member including a base plate and two sidewalls, the two sidewalls are connected to a shaft of the fly wheel and the two magnets are located on the base plate.
4. The bike as claimed in claim 1 , wherein the fly wheel includes a generator set connected to spokes of the fly wheel and coils which are connected on a periphery of the fly wheel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/062,836 US20060189452A1 (en) | 2005-02-23 | 2005-02-23 | Magnetic resistance device for upright bikes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/062,836 US20060189452A1 (en) | 2005-02-23 | 2005-02-23 | Magnetic resistance device for upright bikes |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060189452A1 true US20060189452A1 (en) | 2006-08-24 |
Family
ID=36913492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/062,836 Abandoned US20060189452A1 (en) | 2005-02-23 | 2005-02-23 | Magnetic resistance device for upright bikes |
Country Status (1)
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US (1) | US20060189452A1 (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080220945A1 (en) * | 2007-03-06 | 2008-09-11 | Si-Iyue Chen | Body training machine |
US7462133B1 (en) | 2004-04-16 | 2008-12-09 | Herman Richard L | Forearm and wrist exercise device |
CN103405894A (en) * | 2013-08-02 | 2013-11-27 | 宁波昌隆健身器材有限公司 | Exercise bike with adjustable damping device |
CN107485837A (en) * | 2017-09-06 | 2017-12-19 | 乐歌人体工学科技股份有限公司 | Contactless bicycle training bench |
CN108939398A (en) * | 2018-07-19 | 2018-12-07 | 广东精茂健康科技股份有限公司 | Self power generation magnetic control wheel |
US10188890B2 (en) | 2013-12-26 | 2019-01-29 | Icon Health & Fitness, Inc. | Magnetic resistance mechanism in a cable machine |
US10391348B2 (en) | 2016-02-01 | 2019-08-27 | Mad Dogg Athletics, Inc. | Adjustable resistance and braking system for exercise equipment |
US10426989B2 (en) | 2014-06-09 | 2019-10-01 | Icon Health & Fitness, Inc. | Cable system incorporated into a treadmill |
US10441840B2 (en) | 2016-03-18 | 2019-10-15 | Icon Health & Fitness, Inc. | Collapsible strength exercise machine |
US10449416B2 (en) | 2015-08-26 | 2019-10-22 | Icon Health & Fitness, Inc. | Strength exercise mechanisms |
US10661114B2 (en) | 2016-11-01 | 2020-05-26 | Icon Health & Fitness, Inc. | Body weight lift mechanism on treadmill |
US10940360B2 (en) | 2015-08-26 | 2021-03-09 | Icon Health & Fitness, Inc. | Strength exercise mechanisms |
CN112755460A (en) * | 2021-01-18 | 2021-05-07 | 华北水利水电大学 | Body-building bicycle |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589193A (en) * | 1969-07-24 | 1971-06-29 | William E Thornton | Ergometer |
US4817938A (en) * | 1983-07-08 | 1989-04-04 | Combi Co., Ltd. | Bicycle ergometer and eddy current brake therefor |
US5031900A (en) * | 1990-01-04 | 1991-07-16 | Engineering Dynamics Corporation | Eddy current braking system |
US6626804B2 (en) * | 2001-06-15 | 2003-09-30 | Leao Wang | Work-indicating unit of a magnetic control exercise apparatus |
US6945917B1 (en) * | 2000-11-21 | 2005-09-20 | Racer-Mate, Inc. | Resistance exercise apparatus and trainer |
-
2005
- 2005-02-23 US US11/062,836 patent/US20060189452A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589193A (en) * | 1969-07-24 | 1971-06-29 | William E Thornton | Ergometer |
US4817938A (en) * | 1983-07-08 | 1989-04-04 | Combi Co., Ltd. | Bicycle ergometer and eddy current brake therefor |
US5031900A (en) * | 1990-01-04 | 1991-07-16 | Engineering Dynamics Corporation | Eddy current braking system |
US6945917B1 (en) * | 2000-11-21 | 2005-09-20 | Racer-Mate, Inc. | Resistance exercise apparatus and trainer |
US6626804B2 (en) * | 2001-06-15 | 2003-09-30 | Leao Wang | Work-indicating unit of a magnetic control exercise apparatus |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7462133B1 (en) | 2004-04-16 | 2008-12-09 | Herman Richard L | Forearm and wrist exercise device |
US20080220945A1 (en) * | 2007-03-06 | 2008-09-11 | Si-Iyue Chen | Body training machine |
CN103405894A (en) * | 2013-08-02 | 2013-11-27 | 宁波昌隆健身器材有限公司 | Exercise bike with adjustable damping device |
US10188890B2 (en) | 2013-12-26 | 2019-01-29 | Icon Health & Fitness, Inc. | Magnetic resistance mechanism in a cable machine |
US10426989B2 (en) | 2014-06-09 | 2019-10-01 | Icon Health & Fitness, Inc. | Cable system incorporated into a treadmill |
US10940360B2 (en) | 2015-08-26 | 2021-03-09 | Icon Health & Fitness, Inc. | Strength exercise mechanisms |
US10449416B2 (en) | 2015-08-26 | 2019-10-22 | Icon Health & Fitness, Inc. | Strength exercise mechanisms |
US10391348B2 (en) | 2016-02-01 | 2019-08-27 | Mad Dogg Athletics, Inc. | Adjustable resistance and braking system for exercise equipment |
US11395935B2 (en) | 2016-02-01 | 2022-07-26 | Mad Dogg Athletics, Inc. | Adjustable resistance and braking system for exercise equipment |
US10441840B2 (en) | 2016-03-18 | 2019-10-15 | Icon Health & Fitness, Inc. | Collapsible strength exercise machine |
US10661114B2 (en) | 2016-11-01 | 2020-05-26 | Icon Health & Fitness, Inc. | Body weight lift mechanism on treadmill |
CN107485837A (en) * | 2017-09-06 | 2017-12-19 | 乐歌人体工学科技股份有限公司 | Contactless bicycle training bench |
CN108939398A (en) * | 2018-07-19 | 2018-12-07 | 广东精茂健康科技股份有限公司 | Self power generation magnetic control wheel |
CN112755460A (en) * | 2021-01-18 | 2021-05-07 | 华北水利水电大学 | Body-building bicycle |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |