US20190209887A1 - Resistance control device - Google Patents
Resistance control device Download PDFInfo
- Publication number
- US20190209887A1 US20190209887A1 US15/866,803 US201815866803A US2019209887A1 US 20190209887 A1 US20190209887 A1 US 20190209887A1 US 201815866803 A US201815866803 A US 201815866803A US 2019209887 A1 US2019209887 A1 US 2019209887A1
- Authority
- US
- United States
- Prior art keywords
- flywheel
- magnetic member
- resistance
- cam
- driven
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 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
- A63B21/15—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
- A63B21/005—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
- 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
-
- 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
- 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
- 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
Definitions
- the disclosure relates to exercise equipment, and more particularly to a resistance control device.
- a conventional resistance control device is adapted to control the magnitude of a resistance that is applied to a flywheel 10 .
- the conventional resistance control device includes abase seat unit 1 , a supporting frame unit 2 and a magnetic resistance generating unit 3 .
- the base seat unit 1 includes a shaft seat 11 , and a supporting shaft 12 mounted on the shaft seat 11 .
- the supporting frame unit 2 is connected to the base seat unit 1 , and includes a pivot seat 21 , a resilient member 22 having one end that is connected to the shaft seat 11 , and a post 23 disposed to permit the pivot seat 21 to be mounted thereonto.
- the magnetic resistance generating unit 3 is disposed proximate to and spaced apart from the flywheel 10 , and includes a magnetic member 31 , a driving member 32 and a control rod 33 .
- the magnetic member 31 has a pivotal end 311 pivotally connected to the pivot seat 21 , and a free end 312 connected to the other end of the resilient member 22 .
- Two ends of the control rod 33 are respectively connected to the driving member 32 and the free end 312 of the magnetic member 31 .
- the driving member 32 drives the control rod 33 to move the free end 312 of the magnetic member 31 such that, the magnetic member 31 is driven to pivot toward or away from the flywheel 10 .
- the driving member 32 is operable according to the requirement of a user to drive the control rod 33 to push or pull the free end 312 of the magnetic member 31 , so that the magnetic member 31 pivots toward or away from the flywheel 10 .
- the magnetic member 31 is far away from the flywheel 10 , the magnetic attractive force between the magnetic member 31 and the flywheel 10 is small, and the resistance applied to the flywheel 10 is also small.
- the magnetic member 31 is proximate to the flywheel 10 , the magnetic attractive force between the magnetic member 31 and the flywheel 10 is large, and the resistance applied to the flywheel 10 is thus large.
- the conventional resistance control device can be operated to adjust the resistance applied to the flywheel 10 , the conventional resistance control device still has the following disadvantages:
- control rod 33 and the flywheel 10 are respectively disposed at two sides of the magnetic member 31 , when the control rod 33 pushes or pulls the free end 312 of the magnetic member 31 , it may undesirably separate from the magnetic member 31 , or it may be broken such that, the magnetic member 31 may crash onto the flywheel 10 due to application of the magnetic attractive force, thereby leading to the failures of the magnetic member 31 and the flywheel 10 . As a result, the maintenance costs of the magnetic member 31 and the flywheel 10 are increased.
- the object of the disclosure is to provide a resistance control device that directly drives a magnetic member by use of a cam so as to decrease the failure rates and the maintenance costs of the magnetic member and a flywheel.
- the resistance control device is adapted to control the magnitude of a resistance that is applied to a flywheel.
- the resistance control device includes a supporting unit, a resistance generating unit and a control unit.
- the supporting unit includes a frame body, a first shaft, a second shaft and a third shaft.
- the first, second, and third shafts are disposed on the frame body.
- the first shaft is adapted to permit the flywheel to be rotatably sleeved thereon.
- the resistance generating unit is adapted to be disposed proximate to an outer periphery of the flywheel, and includes a magnetic member having a pivotal end that is pivotally connected to the second shaft, and a free end that is adapted to be biased toward the flywheel, and a driven module disposed proximate to the free end of the magnetic member, and connected to the magnetic member.
- the control unit includes a cam rotatably sleeved onto the third shaft, abutting against the driven module, and operable to move the driven module such that, the magnetic member is driven to pivot toward or away from the flywheel.
- the cam is located between the driven member and a rotating axis of the flywheel so as to block the free end of the magnetic member from contact with the flywheel.
- FIG. 1 is a side schematic view of a conventional resistance control device
- FIG. 2 is a perspective view of an embodiment of a resistance control device according to the disclosure.
- FIG. 3 is a side view of the embodiment, illustrating that a magnetic member is disposed proximate to a flywheel;
- FIG. 4 is a view similar to FIG. 3 but illustrating that the magnetic member is moved so that it is closer to the flywheel;
- FIG. 5 is a side schematic view of the embodiment when being mounted to exercise equipment.
- the embodiment of a resistance control device is adapted to control the magnitude of a resistance that is applied to a flywheel 100 .
- the resistance control device includes a supporting unit 4 , a resistance generating unit 5 , a control unit 6 and a biasing unit 7 .
- the supporting unit 4 includes a frame body 41 , a first shaft 42 , a second shaft 43 and a third shaft 44 .
- the frame body 41 includes two vertical supporting plates 411 .
- the first, second and third shafts 42 , 43 , 44 are disposed on the frame body 41 .
- the first shaft 42 is adapted to permit the flywheel 100 to be rotatably sleeved thereon.
- the flywheel 100 is disposed between the supporting plates 411 .
- the resistance generating unit 5 is adapted to be disposed proximate to an outer periphery of the flywheel 100 , and includes a magnetic member 51 and a driven module 52 .
- the magnetic member 51 has a pivotal end 511 pivotally connected to the second shaft 43 , and a free end 512 opposite to the pivotal end 511 , and adapted to be biased toward the flywheel 100 .
- the driven module 52 is disposed proximate to the free end 512 of the magnetic member 51 , and is connected to the magnetic member 51 .
- the driven module 52 includes a coupling rod 521 fixedly coupled to the magnetic member 51 , and disposed proximate to the free end 512 of the magnetic member 51 , and a driven member 522 rotatably sleeved onto the coupling rod 521 .
- the driven member 522 of the driven module 52 is a bearing. It should be noted that, in other embodiments, the configuration of the driven member 522 may be varied.
- the control unit 6 includes a cam 61 rotatably sleeved onto the third shaft 44 , abutting against the driven member 522 of the driven module 52 , and operable to move the driven module 52 such that, the magnetic member 51 is driven to pivot toward or away from the flywheel 100 .
- the cam 61 is located between the driven member 52 and a rotating axis of the flywheel 100 so as to block the free end 512 of the magnetic member 51 from contact with the flywheel 100 .
- the cam 61 of the control unit 6 has an outer peripheral surface 611 , a wire receiving hole 612 formed in the outer peripheral surface 611 , and spaced apart from the driven member 522 of the driven module 52 , and a surrounding groove 613 formed along the outer peripheral surface 611 .
- the control unit 6 further includes a control wire 62 partially wound on the outer peripheral surface 611 of the cam 61 , and partially received in the surrounding groove 613 .
- the control wire 62 has a fixed section 621 fixedly received in the wire receiving hole 612 of the cam 61 , a winding section 622 extending from the fixed section 621 , wound on the outer peripheral surface 611 of the cam 61 , and received in the surrounding groove 613 , and a control section 623 extending from the winding section 622 , and located outside the surrounding groove 613 .
- the biasing unit 7 is connected between the supporting unit 4 and the resistance generating unit 5 , and includes a connecting rod 71 fixedly mounted to the free end 512 of the magnetic member 51 , and a resilient member 72 having two ends that are respectively connected to the connecting rod 71 and one of the supporting plates 411 of the frame body 41 for biasing the free end 512 of the magnetic member 51 toward the flywheel 100 , and for maintaining contact between the driven member 522 and the outer peripheral surface 611 of the cam 61 .
- the resilient member 72 is a tension spring, and the configuration of the resilient member 72 may be varied in other embodiments.
- a user may operate the control wire 62 to drive the rotation of the cam 61 .
- the cam 61 then moves the driven member 522 so as to drive the magnetic member 51 to pivot toward or away from the flywheel 100 .
- the driven member 522 moves on the outer peripheral surface 611 of the cam 61 , the distance between the driven member 522 and the fly wheel 100 is changed.
- the cam 61 can directly drive the driven member 522 to adjust the distance between the magnetic member 51 and the flywheel 100 , so that the resistance control device of the disclosure can accurately and steadily control and adjust the resistance applied to the flywheel 100 . It should be noted that, since the cam 61 and the flywheel 100 are disposed at the same side of the magnetic member 51 , when the magnetic member 51 is biased toward the flywheel 100 , the cam 61 can stop the magnetic member 51 from crashing onto the flywheel 100 . In such manner, failures of the magnetic member 51 and the flywheel 100 can be diminished, and the service life of the flywheel 100 can be prolonged.
- the embodiment of the resistance control device is mounted to exercise equipment 200 .
- the exercise equipment 200 includes a bottom seat 201 disposed for allowing the resistance control device to be mounted thereonto, a belt pulley 202 spaced apart from the resistance control device, a belt 203 sleeved onto the belt pulley 202 and the flywheel 100 of the resistance control device, a post 204 mounted to the bottom seat 201 , two handles 205 pivotally mounted to the post 204 , and two connecting rods 206 each of which connects a respective one of the handles 205 to the belt pulley 202 .
- the user may operate the handles 205 to drive the rotation of the belt pulley 202 .
- the connecting rods 206 are respectively moved through operation of the handles 205 to drive the rotation of the belt pulley 202 , and the rotation of the belt pulley 202 is then transferred to the flywheel 100 .
- the user desires to change the resistance applied to the flywheel 100 , he or she operates the control wire 64 of the control unit 6 to drive the rotation of the cam 61 so as to vary the distance between the magnetic member 51 and the flywheel 100 . As such, the resistance applied to the flywheel 100 is adjusted.
- the cam 61 and the flywheel 100 By disposing the cam 61 and the flywheel 100 at the same side of the magnetic member 51 , the magnetic member 51 can be prevented from contact with the flywheel 100 through the abutment with the cam 61 . Furthermore, the cam 61 is hard to be broken and be automatically detached from the remaining portion of the resistance control device so that, the resistance control device of the disclosure can efficiently prevent the magnetic member 51 from directly crashing onto or rubbing against the flywheel 100 , can decrease the failure rates and the maintenance costs of the magnetic member 51 and the flywheel 100 , and can prolong the service lives of the magnetic member 51 and the flywheel 100 .
- the cam 61 directly abuts against the driven member 522 to control the distance between the magnetic member 51 and the flywheel 100 .
- the resistance applied to the flywheel can be precisely and steadily adjusted to satisfy the requirement of the user.
- the cam 61 , the driven member 522 , the coupling rod 521 and the magnetic member 51 cooperately form a structure which has high structural strength such that, the failure rate of the resistance control device of the disclosure can be effectively decreased.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
A resistance control device includes a resistance generating unit and a control unit. The resistance generating unit is adapted to be disposed proximate to an outer periphery of a flywheel, and includes a magnetic member having a pivotal end, and a free end that is adapted to be biased toward the flywheel, and a driven module disposed proximate to the free end of the magnetic member, and connected to the magnetic member. The control unit includes a cam rotatably operable to move the driven module such that, the magnetic member is driven to pivot toward or away from the flywheel. The cam is located between the driven member and a rotating axis of the flywheel so as to block the free end of the magnetic member from contact with the flywheel.
Description
- The disclosure relates to exercise equipment, and more particularly to a resistance control device.
- As shown in
FIG. 1 , a conventional resistance control device is adapted to control the magnitude of a resistance that is applied to aflywheel 10. The conventional resistance control device includesabase seat unit 1, a supportingframe unit 2 and a magneticresistance generating unit 3. - The
base seat unit 1 includes ashaft seat 11, and a supportingshaft 12 mounted on theshaft seat 11. - The supporting
frame unit 2 is connected to thebase seat unit 1, and includes apivot seat 21, aresilient member 22 having one end that is connected to theshaft seat 11, and apost 23 disposed to permit thepivot seat 21 to be mounted thereonto. - The magnetic
resistance generating unit 3 is disposed proximate to and spaced apart from theflywheel 10, and includes amagnetic member 31, adriving member 32 and acontrol rod 33. Themagnetic member 31 has apivotal end 311 pivotally connected to thepivot seat 21, and afree end 312 connected to the other end of theresilient member 22. Two ends of thecontrol rod 33 are respectively connected to thedriving member 32 and thefree end 312 of themagnetic member 31. The drivingmember 32 drives thecontrol rod 33 to move thefree end 312 of themagnetic member 31 such that, themagnetic member 31 is driven to pivot toward or away from theflywheel 10. - During operation, the
driving member 32 is operable according to the requirement of a user to drive thecontrol rod 33 to push or pull thefree end 312 of themagnetic member 31, so that themagnetic member 31 pivots toward or away from theflywheel 10. When themagnetic member 31 is far away from theflywheel 10, the magnetic attractive force between themagnetic member 31 and theflywheel 10 is small, and the resistance applied to theflywheel 10 is also small. When themagnetic member 31 is proximate to theflywheel 10, the magnetic attractive force between themagnetic member 31 and theflywheel 10 is large, and the resistance applied to theflywheel 10 is thus large. Although the conventional resistance control device can be operated to adjust the resistance applied to theflywheel 10, the conventional resistance control device still has the following disadvantages: - 1. Since the
control rod 33 and theflywheel 10 are respectively disposed at two sides of themagnetic member 31, when thecontrol rod 33 pushes or pulls thefree end 312 of themagnetic member 31, it may undesirably separate from themagnetic member 31, or it may be broken such that, themagnetic member 31 may crash onto theflywheel 10 due to application of the magnetic attractive force, thereby leading to the failures of themagnetic member 31 and theflywheel 10. As a result, the maintenance costs of themagnetic member 31 and theflywheel 10 are increased. - 2. Since the driving
member 32 drives themagnetic member 31 through thecontrol rod 33, the accuracy of the resistance adjustment may be adversely affected. - Therefore, the object of the disclosure is to provide a resistance control device that directly drives a magnetic member by use of a cam so as to decrease the failure rates and the maintenance costs of the magnetic member and a flywheel.
- According to the disclosure, the resistance control device is adapted to control the magnitude of a resistance that is applied to a flywheel. The resistance control device includes a supporting unit, a resistance generating unit and a control unit. The supporting unit includes a frame body, a first shaft, a second shaft and a third shaft. The first, second, and third shafts are disposed on the frame body. The first shaft is adapted to permit the flywheel to be rotatably sleeved thereon. The resistance generating unit is adapted to be disposed proximate to an outer periphery of the flywheel, and includes a magnetic member having a pivotal end that is pivotally connected to the second shaft, and a free end that is adapted to be biased toward the flywheel, and a driven module disposed proximate to the free end of the magnetic member, and connected to the magnetic member. The control unit includes a cam rotatably sleeved onto the third shaft, abutting against the driven module, and operable to move the driven module such that, the magnetic member is driven to pivot toward or away from the flywheel. The cam is located between the driven member and a rotating axis of the flywheel so as to block the free end of the magnetic member from contact with the flywheel.
- Other features and advantages of the disclosure will become apparent in the following detailed description of the embodiment with reference to the accompanying drawings, of which:
-
FIG. 1 is a side schematic view of a conventional resistance control device; -
FIG. 2 is a perspective view of an embodiment of a resistance control device according to the disclosure; -
FIG. 3 is a side view of the embodiment, illustrating that a magnetic member is disposed proximate to a flywheel; -
FIG. 4 is a view similar toFIG. 3 but illustrating that the magnetic member is moved so that it is closer to the flywheel; and -
FIG. 5 is a side schematic view of the embodiment when being mounted to exercise equipment. - Referring to
FIGS. 2 to 4 , the embodiment of a resistance control device according to the disclosure is adapted to control the magnitude of a resistance that is applied to aflywheel 100. The resistance control device includes a supportingunit 4, aresistance generating unit 5, acontrol unit 6 and abiasing unit 7. - The supporting
unit 4 includes aframe body 41, afirst shaft 42, asecond shaft 43 and athird shaft 44. Theframe body 41 includes twovertical supporting plates 411. The first, second andthird shafts frame body 41. - The
first shaft 42 is adapted to permit theflywheel 100 to be rotatably sleeved thereon. Theflywheel 100 is disposed between the supportingplates 411. - The
resistance generating unit 5 is adapted to be disposed proximate to an outer periphery of theflywheel 100, and includes amagnetic member 51 and a drivenmodule 52. Themagnetic member 51 has apivotal end 511 pivotally connected to thesecond shaft 43, and afree end 512 opposite to thepivotal end 511, and adapted to be biased toward theflywheel 100. The drivenmodule 52 is disposed proximate to thefree end 512 of themagnetic member 51, and is connected to themagnetic member 51. The drivenmodule 52 includes acoupling rod 521 fixedly coupled to themagnetic member 51, and disposed proximate to thefree end 512 of themagnetic member 51, and a drivenmember 522 rotatably sleeved onto thecoupling rod 521. - In this embodiment, the driven
member 522 of the drivenmodule 52 is a bearing. It should be noted that, in other embodiments, the configuration of the drivenmember 522 may be varied. - The
control unit 6 includes acam 61 rotatably sleeved onto thethird shaft 44, abutting against the drivenmember 522 of the drivenmodule 52, and operable to move the drivenmodule 52 such that, themagnetic member 51 is driven to pivot toward or away from theflywheel 100. Thecam 61 is located between the drivenmember 52 and a rotating axis of theflywheel 100 so as to block thefree end 512 of themagnetic member 51 from contact with theflywheel 100. Thecam 61 of thecontrol unit 6 has an outerperipheral surface 611, awire receiving hole 612 formed in the outerperipheral surface 611, and spaced apart from the drivenmember 522 of the drivenmodule 52, and a surroundinggroove 613 formed along the outerperipheral surface 611. Thecontrol unit 6 further includes acontrol wire 62 partially wound on the outerperipheral surface 611 of thecam 61, and partially received in the surroundinggroove 613. Thecontrol wire 62 has afixed section 621 fixedly received in thewire receiving hole 612 of thecam 61, awinding section 622 extending from thefixed section 621, wound on the outerperipheral surface 611 of thecam 61, and received in the surroundinggroove 613, and acontrol section 623 extending from thewinding section 622, and located outside the surroundinggroove 613. Through the operation of thecontrol wire 62, thecam 61 can be driven to rotate so as to drive the movement of the drivenmember 522 of the drivenmodule 52. - The
biasing unit 7 is connected between the supportingunit 4 and theresistance generating unit 5, and includes a connectingrod 71 fixedly mounted to thefree end 512 of themagnetic member 51, and aresilient member 72 having two ends that are respectively connected to the connectingrod 71 and one of the supportingplates 411 of theframe body 41 for biasing thefree end 512 of themagnetic member 51 toward theflywheel 100, and for maintaining contact between the drivenmember 522 and the outerperipheral surface 611 of thecam 61. - In this embodiment, the
resilient member 72 is a tension spring, and the configuration of theresilient member 72 may be varied in other embodiments. During operation of the resistance control device, a user may operate thecontrol wire 62 to drive the rotation of thecam 61. Thecam 61 then moves the drivenmember 522 so as to drive themagnetic member 51 to pivot toward or away from theflywheel 100. When the drivenmember 522 moves on the outerperipheral surface 611 of thecam 61, the distance between the drivenmember 522 and thefly wheel 100 is changed. - As described above, the
cam 61 can directly drive the drivenmember 522 to adjust the distance between themagnetic member 51 and theflywheel 100, so that the resistance control device of the disclosure can accurately and steadily control and adjust the resistance applied to theflywheel 100. It should be noted that, since thecam 61 and theflywheel 100 are disposed at the same side of themagnetic member 51, when themagnetic member 51 is biased toward theflywheel 100, thecam 61 can stop themagnetic member 51 from crashing onto theflywheel 100. In such manner, failures of themagnetic member 51 and theflywheel 100 can be diminished, and the service life of theflywheel 100 can be prolonged. - Referring to
FIG. 5 , the embodiment of the resistance control device is mounted to exerciseequipment 200. Theexercise equipment 200 includes abottom seat 201 disposed for allowing the resistance control device to be mounted thereonto, abelt pulley 202 spaced apart from the resistance control device, abelt 203 sleeved onto thebelt pulley 202 and theflywheel 100 of the resistance control device, apost 204 mounted to thebottom seat 201, twohandles 205 pivotally mounted to thepost 204, and two connectingrods 206 each of which connects a respective one of thehandles 205 to thebelt pulley 202. The user may operate thehandles 205 to drive the rotation of thebelt pulley 202. - Referring to
FIGS. 2 and 5 , during operation of the exercise equipment, the connectingrods 206 are respectively moved through operation of thehandles 205 to drive the rotation of thebelt pulley 202, and the rotation of thebelt pulley 202 is then transferred to theflywheel 100. When the user desires to change the resistance applied to theflywheel 100, he or she operates the control wire 64 of thecontrol unit 6 to drive the rotation of thecam 61 so as to vary the distance between themagnetic member 51 and theflywheel 100. As such, the resistance applied to theflywheel 100 is adjusted. - The following advantages can be concluded from the above-mentioned description:
- 1. By disposing the
cam 61 and theflywheel 100 at the same side of themagnetic member 51, themagnetic member 51 can be prevented from contact with theflywheel 100 through the abutment with thecam 61. Furthermore, thecam 61 is hard to be broken and be automatically detached from the remaining portion of the resistance control device so that, the resistance control device of the disclosure can efficiently prevent themagnetic member 51 from directly crashing onto or rubbing against theflywheel 100, can decrease the failure rates and the maintenance costs of themagnetic member 51 and theflywheel 100, and can prolong the service lives of themagnetic member 51 and theflywheel 100. - 2. The
cam 61 directly abuts against the drivenmember 522 to control the distance between themagnetic member 51 and theflywheel 100. As a result, the resistance applied to the flywheel can be precisely and steadily adjusted to satisfy the requirement of the user. - 3. The
cam 61, the drivenmember 522, thecoupling rod 521 and themagnetic member 51 cooperately form a structure which has high structural strength such that, the failure rate of the resistance control device of the disclosure can be effectively decreased. - In the description above, for the purposes of explanation, numerous specific details have been set forth in order to provide a thorough understanding of the embodiment. It will be apparent, however, to one skilled in the art, that one or more other embodiments maybe practiced without some of these specific details. It should also be appreciated that reference throughout this specification to “one embodiment,” “an embodiment,” an embodiment with an indication of an ordinal number and so forth means that a particular feature, structure, or characteristic may be included in the practice of the disclosure. It should be further appreciated that in the description, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of various inventive aspects.
- While the disclosure has been described in connection with what is considered the exemplary embodiment, it is understood that this disclosure is not limited to the disclosed embodiment but is intended to cover various arrangements included within the spirit and scope of the broadest interpretation so as to encompass all such modifications and equivalent arrangements.
Claims (7)
1. A resistance control device adapted to control the magnitude of a resistance that is applied to a flywheel, comprising:
a supporting unit including a frame body, a first shaft, a second shaft and a third shaft, said first, second and third shafts being disposed on said frame body, said first shaft being adapted to permit the flywheel to be rotatably sleeved thereon;
a resistance generating unit adapted to be disposed proximate to an outer periphery of the flywheel, and including a magnetic member that has a pivotal end pivotally connected to said second shaft, and a free end adapted to be biased toward the flywheel, and a driven module that is disposed proximate to said free end of said magnetic member, and that is connected to said magnetic member; and
a control unit including a cam that is rotatably sleeved onto said third shaft, that abuts against said driven module, and that is operable to move said driven module such that, said magnetic member is driven to pivot toward or away from the flywheel, said cam being located between said driven member and a rotating axis of the flywheel so as to block said free end of said magnetic member from contact with the flywheel.
2. The resistance control device as claimed in claim 1 , wherein said driven module of said resistance generating unit includes a coupling rod fixedly coupled to said magnetic member, and disposed proximate to said free end of said magnetic member, and a driven member rotatably sleeved onto said coupling rod.
3. The resistance control device as claimed in claim 2 , wherein said driven member of said driven module is a bearing.
4. The resistance control device as claimed in claim 2 , wherein:
said cam of said control unit has an outer peripheral surface, and a surrounding groove formed along said outer peripheral surface; and
said control unit further includes a control wire partially wound on said outer peripheral surface of said cam, and partially received in said surrounding groove.
5. The resistance control device as claimed in claim 4 , wherein said cam of said control unit further has a wire receiving hole formed in said outer peripheral 1 surface, and spaced apart from said driven member of said driven module, said control wire having a fixed section that is fixedly received in said wire receiving hole of said cam, a winding section that extends from said fixed section, that is wound on said outer peripheral surface of said cam, and that is received in said surrounding groove, and a control section that extends from said winding section, and that is located outside said surrounding groove.
6. The resistance control device as claimed in claim 1 , wherein said frame body includes two vertical supporting plates, the flywheel being disposed between said supporting plates.
7. The resistance control device as claimed in claim 6 , further comprising a biasing unit connected between said supporting unit and said resistance generating unit, and including a connecting rod that is fixedly mounted to said free end of said magnetic member, and a resilient member that has two ends respectively connected to said connecting rod and one of said supporting plates of said frame body for biasing said free end of said magnetic member toward the flywheel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/866,803 US20190209887A1 (en) | 2018-01-10 | 2018-01-10 | Resistance control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/866,803 US20190209887A1 (en) | 2018-01-10 | 2018-01-10 | Resistance control device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20190209887A1 true US20190209887A1 (en) | 2019-07-11 |
Family
ID=67140416
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/866,803 Abandoned US20190209887A1 (en) | 2018-01-10 | 2018-01-10 | Resistance control device |
Country Status (1)
Country | Link |
---|---|
US (1) | US20190209887A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11364404B2 (en) * | 2020-09-30 | 2022-06-21 | Great Fitness Industrial Co., Ltd. | Magnetic resistance structure and exercise machine having the same |
US11446547B2 (en) * | 2017-06-22 | 2022-09-20 | Peloton Interactive, Inc. | Resistance sensing apparatus for exercise equipment |
-
2018
- 2018-01-10 US US15/866,803 patent/US20190209887A1/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11446547B2 (en) * | 2017-06-22 | 2022-09-20 | Peloton Interactive, Inc. | Resistance sensing apparatus for exercise equipment |
US11364404B2 (en) * | 2020-09-30 | 2022-06-21 | Great Fitness Industrial Co., Ltd. | Magnetic resistance structure and exercise machine having the same |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11278998B2 (en) | Double disc surface grinding machine and grinding method | |
US6857993B2 (en) | Magnetic tension control weight training machine | |
US9662534B1 (en) | Pull exercise training device | |
US20190209887A1 (en) | Resistance control device | |
US2683336A (en) | Rubbing machine | |
CN209955375U (en) | Automatic lifting platform | |
US5499777A (en) | Reel disc driving device for a video cassette recorder | |
US2566674A (en) | Turntable as used for display purposes and friction drive mechanism therefor | |
US3140033A (en) | Tape tension equalizer | |
CN113387215B (en) | Semiconductor material coiling mechanism | |
US2634559A (en) | Vibratory electric motor and mechanism driven thereby | |
CN211350592U (en) | Glue-sticking swing arm device and die bonder | |
KR890001894B1 (en) | Friction device of tape recorder | |
US2660896A (en) | Selective plural speed frictional drive mechanism | |
CN202296487U (en) | Driven film unrolling device | |
CN217786437U (en) | Driving device of balancing machine | |
CN213084888U (en) | Tension adjusting mechanism of rewinding machine and rewinding machine thereof | |
US20130010029A1 (en) | Printer having printer head adjustment assembly | |
CN213084855U (en) | Tension adjusting mechanism of rewinding machine and rewinding machine thereof | |
CN217478676U (en) | Passive unwinding device of non-woven fabrics with mechanism splines | |
CN110937473A (en) | Paper tray frame with centering device | |
CN220084651U (en) | Dust concentration detection device | |
CN212941167U (en) | Elliptical machine | |
JPS6224343Y2 (en) | ||
JP2001021005A (en) | Core wire winding device for transmission belt |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: TAIWAN OXYGEN CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:YANG, FAN-YING;FAN, HAO-CHENG;REEL/FRAME:046294/0860 Effective date: 20180102 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |