TWM565587U - Flywheel measurement system and fitness equipment - Google Patents

Abstract

A flywheel measuring system includes a base, a flywheel, at least one permanent magnet, a magnetic core, an abutment, a cantilever, and a strain signal generating device. The flywheel is rotatably disposed on the base, and at least one permanent magnet is disposed thereon. The magnetic core is movably disposed on the base and electromagnetically coupled to the at least one permanent magnet. The abutment is fixed on the base, the cantilever is also disposed on the base, and the strain signal is disposed on the cantilever. When the flywheel rotates, at least one permanent magnet moves to move the magnetic core, so that the magnetic core pushes the cantilever to abut the abutment against the abutment, further causing the strain signal generating device to strain and output a signal. The fitness equipment can use the above signals to calculate the power output by the user using the fitness equipment.

Description

Flywheel measurement system and fitness equipment

This creative department is related to the flywheel measurement system and fitness equipment; in particular, it is a flywheel measurement system and fitness equipment that can measure the user's pedaling power.

At present, the common exercise equipment for exercising cardiopulmonary functions includes treadmills, elliptical machines, and fly-wheel bicycles. Among them, elliptical machines and fly-wheel bicycles have less damage to the user's knees during exercise, so most people choose to use them as Auxiliary equipment for oxygen exercise.

In order to allow the user to adjust the exercise power, the elliptical machine and the flywheel bicycle are equipped with a magnetic resistance device inside. For example, as shown in U.S. Patent No. 6,084,425, the elliptical machine and the flywheel bicycle have a drive wheel set, a flywheel set, and a drive belt set connecting the two. The driving wheel set connects the crank and the pedal. When the user steps on the pedal to move, the driving wheel in the driving wheel set is driven to start rotating, and the driving belt set transmits the rotating power to the flywheel group to drive the flywheel. The flywheel in the group rotates. A plurality of permanent magnets may be disposed on the periphery of the flywheel. In addition, a fixed magnetic core may be disposed inside the elliptical or flywheel bicycle, and the magnetic core is electromagnetically coupled with the permanent magnet of the periphery of the flywheel, and the magnetic core surrounds at least one set of coils. When the flywheel rotates, the magnetic core and the rotating permanent magnet generate electromagnetic induction, so the coil around the outer core of the magnetic core will generate a signal, and the control system of the fitness equipment can perform feedback control according to the electrical signal, thereby generating the flywheel group. Resistance allows users to increase or decrease their athletic performance according to their needs.

In addition to hoping to adjust the resistance of the equipment to adjust their athletic strength, users of fitness equipment also want to monitor their physical activity and fitness performance. Taking the elliptical machine and the flywheel bicycle as an example, the user may want to see the power output by himself during the exercise. However, if the measuring device is installed inside the device, the original has the driving wheel set and the flywheel. The fitness equipment of the group and the transmission belt group is more cumbersome and more occupying the volume, and the cost of the fitness equipment is increased, so that the expensive price of the fitness equipment is further increased, and the consumer's desire to purchase is reduced. On the other hand, the externally set measuring device is more suspicious in the accuracy of the measurement.

Therefore, it is necessary to develop a power measuring device that occupies small space, high precision, and low cost to solve the above problem.

In view of this, the purpose of the present invention is to provide a flywheel measuring system capable of measuring the power output by the user on the elliptical and flywheel bicycles with high precision without excessively increasing the size and cost of the equipment.

In order to achieve the above object, the flywheel measuring system provided by the present invention comprises a base, a flywheel disposed on the base, at least one permanent magnet disposed at a periphery of the flywheel, and a magnetic body disposed on the base and electromagnetically coupled with the permanent magnet. a core, an abutment fixed on the base, a cantilever disposed on the base, and a strain signal generating device disposed on the cantilever.

When the flywheel rotates, the permanent magnets disposed around the flywheel will move as the flywheel rotates, and the magnetic core coupled to the permanent magnets will be moved by the permanent magnets. After the magnetic core moves, the cantilever is pushed against the abutting member fixed on the base, so that the strain signal generating device disposed on the cantilever is strained by the force and outputs a signal according to the strain.

Another object of the present invention is to provide a fitness equipment that can measure the power output by the user under high pressure without excessively increasing the size and cost of the equipment.

In order to achieve the above object, the fitness equipment provided by the present invention comprises a base, a drive wheel set and a flywheel disposed on the base, a transmission set disposed between the drive wheel set and the flywheel, and at least one permanent magnet disposed around the flywheel, a magnetic core disposed on the base and electromagnetically coupled to the permanent magnet, an abutting member fixed on the base, a cantilever disposed on the base, a strain signal generating device disposed on the cantilever, and a connection strain signal generating device Computing module.

When the user steps on the pedal of the exercise equipment, the driving wheel in the driving wheel set is driven to rotate, and then the flywheel is rotated by the transmission group. When the flywheel rotates, the permanent magnets disposed around the flywheel will move as the flywheel rotates, and the magnetic core electromagnetically coupled with the permanent magnets will be moved by the permanent magnets. After the magnetic core moves, the cantilever is pushed against the abutment fixed on the base, so that the strain signal generating device disposed on the cantilever generates strain and outputs a signal. According to this signal, the calculation module can calculate the power output by the user when the pedal is stepped on.

In this way, the creation can accurately measure the output power of the user's pedaling elliptical machine and the flywheel bicycle machine and the like without excessively increasing the size and cost of the device.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. 1 to FIG. 3, FIG. 1 to FIG. 3 are partial schematic views of the fitness equipment 1 according to a preferred embodiment of the present invention, and FIG. 2 is a schematic view of the fitness equipment 1 of FIG. 1 in another perspective. 3 is a schematic diagram of the fitness equipment 1 of FIG. 1 omitting the display of some components. Please note that FIG. 3 does not show the outer casing 124 and the support rod 191 and the support rod 192 for convenience of description. In practical applications, the outer casing 124 and the support rod Components such as 191, 192 will still participate in the operation and linkage, and these components will be detailed later. As shown in FIG. 1, the exercise equipment 1 includes a base 10, a drive wheel set 11, a flywheel 12, and a transmission set 13. The drive wheel set 11 includes a drive wheel 110 and a crank set 112 that couples the drive wheel 110. The drive wheel 110 is rotatably disposed on the base 10, and the user can operate the crank set 112 to drive the drive wheel 110 to rotate. In practice, the exercise equipment 1 can be an elliptical or flywheel bicycle, the crankset 112 can be coupled to its pedal, and the user can step on the pedal to rotate the drive wheel 110 through the crankset 112.

The transmission set 13 connects the drive wheel 110 and the flywheel 12, and transmits the rotation of the drive wheel 110 to the flywheel 12 to drive the flywheel 12 to rotate correspondingly. The flywheel 12 further includes a shaft center 120, a peripheral portion 122 away from the shaft center 120, and an outer casing 124. Further, at least one permanent magnet 126 is disposed on the peripheral portion 122. In the present embodiment, the permanent magnet 126 is located at the peripheral portion 122. The outer casing 124 can be disposed on the peripheral portion 122 by the outer casing 124. Therefore, when the flywheel 12 is driven to rotate, the permanent magnet 126 moves as the flywheel 12 rotates. In the present embodiment, the number of permanent magnets 126 is six, but the practice is not limited thereto, depending on the needs of the user or the designer.

In addition, the exercise equipment 1 further includes a magnetic core 14, an abutment 15 and a cantilever 16. The magnetic core 14 is movably disposed on the base 10 and electromagnetically coupled to the permanent magnet 126. Therefore, when the flywheel 12 rotates, the permanent magnet 126 also drives the magnetic core 14 to move. The abutment 15 and the cantilever 16 are both disposed on the base 10. When the magnetic core 14 is driven by the permanent magnet 126, the cantilever 16 will be pushed against the abutment member 15.

In more detail, please refer to FIG. 4. FIG. 4 is a partially enlarged schematic view of the fitness equipment 1 of FIG. As shown in FIG. 4, the cantilever 16 further includes a connecting portion 160 disposed on the base 10 and a contact portion 162 suspended from the base 10, and the contact portion 162 can contact the magnetic core 14 and be pushed by the magnetic core to abut Abuts the piece 15. In practical applications, a projection or screw on the outer casing of the magnetic core 14 can be used to contact the contact portion 162. When the flywheel 12 is driven to rotate in the direction D1, the permanent magnet 126 drives the magnetic core 14 to move in the direction D2, thereby pushing the contact portion 162 of the cantilever 16 against the abutting member 15. In the present embodiment, the exercise equipment 1 further includes a strain signal generating device 17 disposed on the contact portion 162 of the cantilever 16. When the magnetic core 14 is driven by the permanent magnet 126 and pushes the contact portion 162 of the cantilever 16 against the abutting member 15, the strain signal generating device 17 is pressed by the contact portion 162 and the abutting member 15 and is generated. Strain, then output a signal based on the degree of strain. In the present embodiment, the strain signal generating device 17 is a strain gauge, but the practice is not limited thereto, and any device or component capable of converting strain to a signal output can be used as a strain signal generating device, for example, a piezoelectric material.

The signal generated by the strain signal generating device 17 can be used to calculate the power output by the user when the pedal is stepped on. Please refer to FIG. 5. FIG. 5 is a partial schematic view of the fitness equipment 1 of FIG. As shown in FIG. 5, the exercise equipment 1 further has a calculation module 18 connected to the strain signal generating device 17 for receiving the signal generated by the strain signal generating device 17, thereby counteracting the power output by the user on the pedal. In detail, when the user steps faster, the strain signal generating device 17 increases the amount of strain and reacts to the signal outputted by the calculating module 18, and the calculating module 18 can calculate and reverse the user's pedaling according to the output signal. The power output by the pedal. In practice, the computing module 18 can also display the calculated power on the display of the exercise device 1 for reference by the user.

In summary, the permanent magnet 126, the magnetic core 14, the abutting member 15, the cantilever 16 and the strain signal generating device 17 disposed on the base 10 can form a flywheel measuring system, and the output signal can be effectively and accurately calculated. In addition to the above-mentioned components, as shown in the figure, the occupied space is extremely small and the cost is low, so that the user can step on the elliptical machine with high precision without excessively increasing the volume and cost of the device. And the power output of fitness equipment such as flywheel bicycles.

Please refer to FIG. 6. FIG. 6 is a schematic diagram of the fitness equipment 1 of FIG. 4 in another usage mode. As shown in FIG. 6 , the abutting member 15 of the fitness equipment 1 includes a fixing portion 150 and an abutting portion 152 . The fixing portion 150 is fixed on the base 10 , and the abutting portion 152 can adjust the fixing portion 150 . The distance between the cantilevers 16. In this embodiment, the fixing portion 150 may include a screw hole, and the abutting portion 152 may be a bolt that cooperates with the screw hole. In FIG. 6, the abutting portion 152 is upwardly adjusted to increase the distance between the contact portion 162 of the cantilever 16 and, of course, the abutting portion 152 can also be adjusted downward to reduce the distance between the contact portion 162 and the contact portion 162. Therefore, by adjusting the distance between the abutting portion 152 and the cantilever 16, the strain signal generating device 17 can output different signals at the same speed of the flywheel 14, which is more advantageous for the calculation module 18 to correct and calculate the output power.

Referring to FIG. 1 and FIG. 2 again, as shown in the figure, the exercise equipment 1 further includes a support rod 191 and a support rod 192 respectively rotatably disposed at one end of the shaft 120 of the flywheel 12 and on both sides of the flywheel 12, so that Both can be coplanar with the flywheel 12. The other ends of the support rod 191 and the support rod 192 are respectively connected to both sides of the magnetic core 14. With the support rod 191 and the support rod 192, when the magnetic core 14 is driven by the permanent magnet 126, it moves in the rotational direction of the support rods 191, 192. Further, the exercise equipment 1 further has restriction members 193, 194 provided on the base 10, and the restriction members 193, 194 straddle the support rod 191 and the support rod 192, respectively. By restricting the members 193, 194, the rotation of the support rods 191, 192 is restricted to a certain range, in other words, the movement of the magnetic core 14 is also limited to a certain range, and the flywheel measuring system can be protected. For example, when the user excessively presses the pedal of the fitness equipment, the high-speed moving permanent magnet 126 may give the magnetic core 14 excessive induction force, causing the magnetic core 14 to be displaced greatly, thereby causing the magnetic core 14, the cantilever 16 and the abutment. Excessive pressure between the pieces 15 causes damage to the components, and the restricting members 193, 194 can limit the range of movement of the magnetic core 14 to avoid the above-mentioned situation. Further, when the exercise equipment 1 is not used, the magnetic core 14 is moved downward by the influence of gravity, and the restriction members 193, 194 can also provide an origin position for the magnetic core 14 to lean against, so as to prevent the magnetic core 14 from falling out of range.

In the present embodiment, the fitness equipment 1 includes two support rods 191, 192 connected to the shaft center 120 of the flywheel 12 and the magnetic core 14, but in practice, the number of support rods is not limited thereto. In another embodiment, only one support rod and the restricting member are disposed on one side of the flywheel 12 and the magnetic core 14 to achieve the effect of limiting the range of movement of the magnetic core 14.

In addition to the aforementioned support rods, other methods of limiting the range of movement of the core may be employed. Please refer to FIG. 1 and FIG. 7 together. FIG. 7 is a partial schematic view of the fitness equipment 1 according to another preferred embodiment of the present invention. As shown in FIG. 7, the difference between the specific embodiment and the specific embodiment of FIG. 1 is that the fitness equipment 1 of the specific embodiment has a recess 195, and the recess 195 allows a part of the magnetic core 14 to be accommodated therein. For example, an additional projection on the outer casing of the magnetic core 14 or a longer screw. With the recess 195 and the protruding portion, the magnetic core 14 is movable along the extending direction of the recess 195, in other words, the movement of the magnetic core 14 is restricted by the recess 195, thereby achieving the support rod 191 as in the foregoing embodiment. 192 and the effectiveness of the restriction members 193, 194. Of course, it is also possible to provide the groove 195, the support rods 191, 192, and the restricting members 193, 194 at the same time in practice to obtain a double protection effect.

In the foregoing specific embodiment, the strain signal generating device 17 is disposed between the contact portion 162 of the cantilever 16 and the abutting member 15, but is not limited thereto. Please refer to FIG. 8. FIG. 8 is a partial schematic view of the fitness equipment 1 according to another preferred embodiment of the present invention. As shown in FIG. 8, the specific embodiment is different from the foregoing embodiment in that the strain signal generating device 17' of the specific embodiment is disposed on the contact portion 162 of the cantilever 16 at the magnetic core 14, when the magnetic core 14 When moved by the permanent magnet 126, the strain signal generating device 17' is contacted to generate strain, and a signal is generated for the calculation module to calculate the output power of the user.

According to the various embodiments described above, the flywheel measuring system of the present invention can accurately measure the power output by the user on the fitness equipment such as the elliptical machine and the flywheel bicycle. In addition, the small size of the flywheel measurement system of this creation does not excessively occupy the space of the fitness equipment, and the cost is low without excessively increasing the price of the fitness equipment.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present application and the scope of the patent application are intended to be included in the scope of the present patent.

[This creation]
1‧‧‧ fitness equipment
10‧‧‧ Pedestal
11‧‧‧Drive wheel set
12‧‧‧Flywheel
13‧‧‧Drive Group
14‧‧‧ magnetic core
15‧‧‧Attendance
16‧‧‧cantilever
17, 17'‧‧‧Strain signal generating device
18‧‧‧Computation Module
110‧‧‧Drive wheel
112‧‧‧ crank group
120‧‧‧Axis
122‧‧‧ surrounding parts
124‧‧‧Outer casing
126‧‧‧ permanent magnet
150‧‧‧Fixed Department
152‧‧‧Affiliation
160‧‧‧Connecting Department
162‧‧‧Contacts
191, 192‧‧‧ support rod
193, 194‧‧‧Restricted components
195‧‧‧ Groove
D1, D2‧‧‧ direction

1 is a partial schematic view of a fitness apparatus in accordance with a preferred embodiment of the present invention. 2 is a schematic view of another perspective of the exercise device of FIG. 1. 3 is a schematic view of the fitness equipment of FIG. 1 omitting a part of the display. 4 is a partial schematic view of the exercise equipment of FIG. 3. Figure 5 is a partial schematic view of the exercise equipment of Figure 3. Figure 6 is a schematic illustration of the exercise device of Figure 4 in another mode of use. 7 is a partial schematic view of a fitness apparatus in accordance with another preferred embodiment of the present invention. 8 is a partial schematic view of a fitness apparatus in accordance with another preferred embodiment of the present invention.

Claims (9)

A flywheel measuring system comprising: a base; a flywheel rotatably disposed on the base, the flywheel having an axis and a portion away from the center of the shaft; at least one permanent magnet disposed around the wheel a magnetic core movably disposed on the base and electromagnetically coupled to the at least one permanent magnet, and moved by the at least one permanent magnet when the flywheel rotates; an abutting member is fixed on the a susceptor, comprising: a connecting portion disposed on the base and a contact portion, the contact portion is pushed by the magnetic core against the abutting member when the magnetic core moves; and a strain signal generating device Provided in the contact portion of the cantilever, the strain signal generating device generates a strain when the contact portion abuts against the abutting member, and outputs a signal according to the strain. The flywheel measuring system of claim 1, further comprising: a support rod having a first end and a second end opposite to the first end, the first end rotatably connecting the shaft of the flywheel The core causes the support rod to be coplanar with the flywheel, the second end being coupled to the magnetic core to enable the magnetic core to move in a direction of rotation of the support rod; and a restricting member disposed on the base A restraining member spans the support bar to limit a range of rotation of the support bar. The flywheel measuring system of claim 1, wherein the base further comprises a recess, the magnetic core comprising a protrusion located in the recess, the magnetic core being transmitted through the convex when the magnetic core is driven by the at least one permanent magnet The exit moves in the direction in which the groove extends. The flywheel measuring system of claim 1, wherein the strain signal generating device is disposed between the contact portion of the cantilever and the magnetic core. The flywheel measuring system of claim 1, wherein the strain signal generating device is disposed between the contact portion of the cantilever and the abutting member. The flywheel measuring system of claim 1, wherein the strain signal generating device comprises a strain gauge. The flywheel measuring system of claim 1, wherein the strain signal generating device comprises a piezoelectric material. The flywheel measuring system of claim 1, wherein the abutting member further comprises a fixing portion and an abutting portion connecting the fixing portion, the fixing portion is fixed on the base, and the abutting portion can The fixing portion adjusts a distance between the cantilever and the cantilever, and the contact portion of the cantilever is pushed by the magnetic core against the abutting portion when the magnetic core moves. A fitness equipment includes: a base; a drive wheel set disposed on the base, the drive wheel set includes a crank set and a drive wheel connecting the crank set, the crank set is for a user The driving wheel is rotated; a flywheel is rotatably disposed on the base, the flywheel has an axis and a portion away from the center of the shaft; a transmission group connecting the driving wheel and the flywheel for The flywheel rotates according to the rotation of the driving wheel; at least one permanent magnet is disposed at the surrounding portion of the flywheel; a magnetic core is movably disposed on the base and electromagnetically coupled to the at least one permanent magnet, and When the flywheel rotates, the flywheel is moved by the at least one permanent magnet; an abutting member is fixed on the base; a cantilever arm includes a connecting portion disposed on the base and a contact portion, wherein the contact portion is The magnetic core is pushed by the magnetic core to abut against the abutting member; a strain signal generating device is disposed at the contact portion of the cantilever, and the strain signal generating device is produced when the contact portion abuts the abutting member Strain, and outputs a signal based on the strain; and a calculation module, connected to the strain signal generating means to receive the signal, the computing module is used for calculating the power of the user steps on the basis of the signal.