Flywheel vehicle capable of synchronously adjusting resistance and gradient

Abstract

The utility model provides a flywheel vehicle which comprises a first lifting arm, a second lifting arm, a main frame, a resistance device, a magnetic resistance mechanism, a linkage mechanism and a linear mechanism. The first and second lifting arms each swing with their first ends as fulcrums and their second ends are pivoted to each other at a pivot point. The main frame can be connected to the first lifting arm. The linkage mechanism is pivoted with the magnetic resistance mechanism and can be connected with the second lifting arm through a steel cable. The linear mechanism is connected between the main frame and the second lifting arm, and the length of the linear mechanism can be adjusted to change the included angle between the first lifting arm and the ground and the included angle between the second lifting arm and the ground, and meanwhile the resistance applied to the resistance device by the magnetic resistance mechanism is changed.

Description

Technical Field

[0001] The utility model relates to an indoor fitness machine capable of adjusting the simulated slope and resistance at the same time, in particular to a flywheel vehicle. Background Art

[0002] Indoor fitness equipment, unaffected by the weather, offers benefits including muscle training, improved mood, calorie burning, and enhanced fitness. Flywheel racing bikes, in particular, can help improve cardiovascular fitness and core strength.

[0003] Most flywheel racing cars on the market only have the function of adjusting resistance and cannot change the simulated slope. Some flywheel racing cars have the function of adjusting the slope. For example, U.S. Patent US, 10561,877B2 (equivalent to patent TW637770B) discloses a fitness machine, comprising a frame, which includes a base portion, an upright portion, and a pivot joint. The upright portion is coupled to the base portion at a single fulcrum. The pivot joint connects the upright portion to the base portion at the single fulcrum. The pivot joint includes a drop-in spindle and a drop-in socket. The drop-in spindle is connected to the upright portion. The drop-in socket is connected to the base portion. The fitness machine also includes a tilt actuator, which connects the base portion of the frame to the upright portion of the frame, and the tilt actuator determines an angle formed by the upright portion relative to the base portion.

[0004] In addition, U.S. Patent No. 9,278,249B2 discloses an indoor flywheel vehicle comprising: a base support, an upright support structure, a seat mounted on the upright support structure, a handlebar assembly mounted on the upright support structure, a pedal assembly connected to the upright support structure, and one or more vibration components. The upright support structure can be continuously adjusted between a plurality of tilt positions, including a forward tilt position, a middle position, and a rearward tilt position, to simulate an outdoor path, via a controller during operation; and the one or more vibration components vary the intensity or frequency of the vibration according to the tilt position of the upright support structure. The indoor flywheel vehicle also includes an extension mechanism connected between the base support and the upright support structure to selectively move the upright support structure between the plurality of tilt positions.

[0005] Conventional flywheels typically have a stable base structure pivotally connected to an upright structure above it. A tilt actuator or extension mechanism between the two structures changes the angle between the upright structure and the base structure, thereby varying the simulated slope of the flywheel. While the slope changes, the resistance of the flywheel remains constant. Resistance is typically adjusted through additional controls and mechanisms. Utility Model Content

[0006] The utility model relates to an indoor fitness machine capable of synchronously adjusting the slope and resistance, such as a flywheel vehicle.

[0007] In some embodiments, a flywheel vehicle includes a first lifting arm, a second lifting arm, a main frame, a resistance device, a magnetic resistance mechanism, a linkage mechanism, a first linkage cable, and a linear mechanism. The first lifting arm includes a first end in contact with the ground and a second end suspended in the air, and the first lifting arm swings with the first end as a fulcrum. The second lifting arm includes a first end in contact with the ground and a second end suspended in the air, and the second lifting arm swings with its first end as a fulcrum, and the second end of the first lifting arm is pivotally connected to the second end of the second lifting arm at a pivot point. The main frame is connected to the first lifting arm. The resistance device is disposed on the main frame and includes an axle and a flywheel. The magnetic resistance mechanism is adjacent to the flywheel and pivotally connected to the main frame, and the magnetic resistance mechanism includes a plurality of magnets. The linkage mechanism includes a first linkage seat, and the first linkage seat is pivotally connected to the magnetic resistance mechanism. The first linkage cable has its two ends connected to the first linkage seat and the second lifting arm or the first lifting arm, respectively. A linear mechanism is connected between the main frame and the second lifting arm. The length of the linear mechanism can be adjusted to change the angle between the first lifting arm and the ground and the angle between the second lifting arm and the ground. At the same time, the first linkage cable drags or pushes the first linkage seat, causing the magnetic resistance mechanism to pivot so as to approach or move away from the flywheel, thereby changing the resistance applied to the flywheel.

[0008] In some embodiments, the magnetic resistance mechanism includes two side plates, the first linkage seat is generally U-shaped or F-shaped, each side of the first linkage seat has a first slot, and the outer surface of each of the two side plates has a first flange disposed in the corresponding first slot. In some embodiments, the linkage mechanism further includes a first spring and a spring seat, the spring seat being fixed to the first lifting arm or the main frame or between the two, and the first spring being disposed between the spring seat and the first linkage seat. In some embodiments, the flywheel further includes an emergency brake wrench and a second linkage cable, the linkage mechanism further includes a second linkage seat pivotally connected to the magnetic resistance mechanism, and the two ends of the second linkage cable are respectively connected to the emergency brake wrench and the second linkage seat.

[0009] In some embodiments, the second linkage seat is roughly U-shaped or F-shaped, and the two side edges of the second linkage seat each have a second slot, and the outer surfaces of the two side plates each have a second flange disposed in the corresponding second slot.

[0010] In some embodiments, the linkage mechanism further includes a second spring disposed between the spring seat and the second linkage seat.

[0011] In some embodiments, the main frame includes a seat tube and a seat tube.

[0012] In some embodiments, the linear mechanism is connected between the riser and the second lift arm.

[0013] In some embodiments, the linear mechanism is connected between the seat tube and the first lifting arm.

[0014] In some embodiments, the linear mechanism includes a motor, a sleeve, and a screw, wherein the sleeve has an internal thread engaging the screw, and the motor is used to drive the screw to rotate, so that the sleeve moves along the screw toward or away from the motor, thereby changing the length of the linear mechanism.

[0015] In some embodiments, when the linear mechanism adjusts its length to change the angles between the first lifting arm and the ground and the angles between the second lifting arm and the ground, the angles between the riser tube and the seat tube and the ground also change accordingly.

[0016] The flywheel of this utility model replaces the traditional "base" with a first and second lifting arm. This design allows the flywheel to have a wider range of adjustable incline. Furthermore, as the linear mechanism changes its length, the resistance applied to the flywheel also increases or decreases, simulating a more realistic riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Non-limiting and non-exhaustive embodiments of the disclosed technology, including preferred embodiments, will be described below with reference to the drawings, wherein like reference numerals refer to like components or parts throughout the several views unless otherwise specified.

[0018] Figure 1 It is a three-dimensional view of a flywheel vehicle according to one embodiment of the present utility model.

[0019] Figure 2 for Figure 1 The flywheel vehicle is shown in a side view on a normal flat road (initial resistance).

[0020] Figure 3 for Figure 1 A side view of the flywheel vehicle shown in a downhill (least resistance) state.

[0021] Figure 4 for Figure 1 A side view of the flywheel vehicle shown in an uphill (maximum resistance) state.

[0022] Figure 5 for Figure 1 A partially enlarged view of the flywheel vehicle 1 is shown.

[0023]

Explanation of symbols

[0024] 1 Flywheel

[0025] 10 Main Frame

[0026] 11 Ascension Mechanism

[0027] 12 Magnetic resistance mechanism

[0028] 13 Linear Mechanism

[0029] 14 First Link Cable

[0030] 15 Linkage mechanism

[0031] 16 Resistance device

[0032] 17 Emergency brake wrench

[0033] 18 Second Link Cable

[0034] 19 Crank

[0035] 20 pedals

[0036] 21 seats

[0037] 22 handles

[0038] 23 Moving wheels

[0039] 101 riser

[0040] 102 seatpost

[0041] 103 Support Arm

[0042] 111 First Lifting Arm

[0043] 111a First end

[0044] 111b Second end

[0045] 112 Second lifting arm

[0046] 112a First end

[0047] 112b Second end

[0048] 121 side panels

[0049] 131 Motor

[0050] 132 sleeve

[0051] 151 First linkage seat

[0052] 152 Second linkage seat

[0053] 153 First Spring

[0054] 154 Second Spring

[0055] 155 spring seat

[0056] 161 Pulley

[0057] 162 Flywheel

[0058] 163 Axis

[0059] 164 connectors

[0060] 1030 pivot point

[0061] 1211 First Flange

[0062] 1212 Second flange

[0063] 1511 First Slot

[0064] 1522 Second Slot

[0065] P pivot point

[0066] θ1 first angle

[0067] θ2 second angle DETAILED DESCRIPTION

[0068] The embodiments will be described more fully below with reference to the accompanying drawings, which form a part hereof and show, by way of illustration, specific exemplary embodiments. These embodiments are disclosed in sufficient detail to enable those skilled in the art to practice the present invention. However, these embodiments may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Therefore, the following detailed description is not to be construed as limiting.

[0069] Figure 1 1 is a perspective view of a flywheel vehicle 1 according to a preferred embodiment of the present invention. The flywheel vehicle 1 is characterized in that the slope and resistance can be adjusted synchronously. Figures 2 to 4 They are Figure 1 The flywheel vehicle 1 is shown in side views in three operating states: generally flat road (initial resistance), downhill (minimum resistance), and uphill (maximum resistance). Figures 1 to 4 The flywheel vehicle 1 mainly comprises a main frame 10, a lifting mechanism 11, a magnetic resistance mechanism 12, a linear mechanism 13, a first linkage cable 14, a linkage mechanism 15, and a resistance device 16. In addition, it can optionally include an emergency brake wrench 17 and a second linkage cable 18.

[0070] See also Figures 1 to 4The lifting mechanism 11 includes a first lifting arm 111 and a second lifting arm 112. The first lifting arm 111 has a first end 111a and a second end 111b, and the second lifting arm 112 has a first end 112a and a second end 112b. The first lifting arm 111 can swing with its first end 111a as a fulcrum, so that a first angle θ1 is formed between the first lifting arm 111 and the ground. The second lifting arm 112 can swing with its first end 112a as a fulcrum, so that a second angle θ2 is formed between the second lifting arm 112 and the ground. The second end 112b of the first lifting arm 111 and the second end 112b of the second lifting arm 112 are pivotally connected at a pivot point P.

[0071] See also Figures 1 to 4 "Main frame 10" refers to the one or more support structures above the first lifting arm 111. In this embodiment, the main frame 10 includes a riser tube 101 and a seat tube 102 located above the first lifting arm 111. In this embodiment, the riser tube 101 and seat tube 102 are fixed to the first lifting arm 111; therefore, when the first angle θ1 changes, the angles of the riser tube 101 and seat tube 102 relative to the floor also change.

[0072] See also Figures 1 to 4 The linear mechanism 13 is connected between the main frame 10 and the second lifting arm 112. The linear mechanism 13 can be connected to any one of one or more support mechanisms of the main frame 10. In this embodiment, the linear mechanism 13 is connected between the riser 101 of the main frame 10 and the second lifting arm 112. The length of the linear mechanism 13 is adjustable. When the length of the linear mechanism 13 changes, the first lifting arm 111 swings with its first end 111a as the fulcrum, and the second lifting arm 112 swings with its first end 112a as the fulcrum, causing the first angle θ1 and the second angle θ2 to change.

[0073] See also Figures 1 to 4 In this embodiment, the linear mechanism 13 includes a motor 131, a sleeve 132, and a screw (hidden in the sleeve 132). The sleeve 132 has an internal thread that engages the screw. The motor 131 is used to drive the screw to rotate, causing the sleeve 132 to move along the screw toward or away from the motor 131, thereby changing the length of the linear mechanism 13. In other embodiments of the present invention, the linear mechanism 13 may also be other linearly extendable devices, such as but not limited to linear actuators.

[0074] See also Figures 1 to 4The flywheel vehicle 1 may include a resistance device 16. As a non-limiting example, the resistance device 16 may include a pulley 161 and a flywheel (also called an inertia wheel) 162. The pulley 161 has an axis 163 and is connected to the flywheel 162 via a connecting member 164 (e.g., a belt). Furthermore, the flywheel vehicle 1 has two cranks 19 and two pedals 20. The cranks 19 are located on the left and right sides of the pulley 161, respectively. One end of each crank 19 is connected to the axis 163, and the other end is connected to a corresponding pedal 20. Above the seat tube 102 is a seat 21. The user sits on the seat 21, with their feet placed on each pedal 20.

[0075] Figure 5 for Figure 1 The flywheel vehicle 1 is shown in a partially enlarged view. Figures 1 to 5 The magnetic resistance mechanism 12 can be composed of two parallel, identically shaped side plates 121, which are pivotally connected to the structure of the main frame 10. In this embodiment, the main frame 10 also has a support arm 103 connected between the seat tube 102 and the first lifting arm 111. The two side plates 121 are pivotally connected to a pivot point 1030 protruding from the surface of the support arm 103. Furthermore, the inner sidewall of each side plate 121 has multiple magnets (hidden by the side plates 121). The polarity of two adjacent magnets on the same side plate 121 is opposite, i.e., one has an N pole and the other has an S pole. The polarity of two magnets in the same corresponding position on different side plates 121 is also opposite. When the side plates 121 drive the magnets toward the flywheel 162, resistance is generated. The closer the multiple magnets are to the flywheel, the greater the resistance. Furthermore, the magnetic resistance mechanism 21 may also include a brake pad (not shown) fixed between the two side plates 121. The brake pad is preferably made of felt, but can also be made of rubber.

[0076] See also Figures 1 to 5 The linkage mechanism 15 includes a first linkage seat 151 and a second linkage seat 152, which are generally U-shaped or U-shaped. The first linkage seat 151 has a first slot 1511 on each side, and the outer surfaces of the two side panels 121 each have a protruding first flange 1211 disposed within the corresponding first slot 1511. The second linkage seat 152 has a second slot 1522 on each side, and the outer surfaces of the two side panels 121 each have a protruding second flange 1212 disposed within the corresponding second slot 1522. Consequently, when the first linkage seat 151 drives the two side panels 121 to rotate about the pivot point 1030, the two second flanges 1212 move within the corresponding second slots 1522. Alternatively, when the second linkage seat 151 drives the two side panels 121 to rotate about the pivot point 1030, the two first flanges 1211 move within the corresponding first slots 1511.

[0077] See also Figures 1 to 5, both ends of the first linkage cable 14 are respectively connected to the second lifting arm 112 and the first linkage seat 151. Both ends of the second linkage cable 18 are respectively connected to the emergency brake wrench 17 and the second linkage seat 152. The linkage mechanism 15 may further include a first spring 153, a second spring 154, and a spring seat 155. The spring seat 155 is fixed to the first lifting arm 111 or the seat tube 102 or between the two. The first spring 153 is disposed between the spring seat 155 and the first linkage seat 151. The second spring 154 is disposed between the spring seat 155 and the second linkage seat 152. The spring seat 155 has first and second through holes (not shown). The first linkage cable 14 passes through the first through hole of the spring seat 155 and then is connected to the first linkage seat 151. The second linkage cable 18 passes through the second through hole of the spring seat 155 and then is connected to the second linkage seat 152.

[0078] See Figures 1 to 5 , in this embodiment, the upper end of the riser 101 has a handle 22 for the user to hold and a control panel (not shown). The control panel is connected to a control system (not shown). The user can input the desired simulated usage slope through the control panel, and the control system outputs a control signal accordingly to control the linear mechanism 13, thereby changing the first angle θ1 and the second angle θ2, and thus changing the angles of the riser 101 and the seat tube 102 relative to the floor to achieve the simulated usage slope desired by the user. At the same time, when the first angle θ1 and the second angle θ2 change, the first linkage cable 14 drags or pushes the first linkage seat 151, causing the two side plates 121 of the magnetic resistance mechanism 12 to pivot, thereby approaching or moving away from the flywheel 162, resulting in a synchronous change in the resistance applied to the flywheel 162. Figure 2 It shows that the linear mechanism 13 is controlled at the initial length L0, and at this time, the resistance applied to the flywheel 162 is the initial resistance for simulating riding on a general flat road.

[0079] Figure 3 It shows that the linear mechanism 13 is controlled at the shortest length Lmin (Lmin < L0), and at this time, the first angle θ1 and the second angle θ2 are reduced to the minimum value. At the same time, the first linkage cable 14 pushes the first linkage seat 151, causing the two side plates 121 of the magnetic resistance mechanism 12 to pivot, thereby moving away from the flywheel 162. At this time, the resistance applied to the flywheel 162 is the minimum resistance for simulating riding downhill.

[0080] Figure 4 It shows that the linear mechanism is controlled at the longest length Lmax (Lmax > L0), and at this time, the first angle θ1 and the second angle θ2 are increased to the maximum value. At the same time, the first linkage cable 14 drags the first linkage seat 151, causing the two side plates 121 of the magnetic resistance mechanism 12 to pivot, thereby approaching the flywheel 162. At this time, the resistance applied to the flywheel 162 is the maximum resistance for simulating riding uphill.

[0081] See also Figure 3 and Figure 4 The first end 112a of the second lifting arm 112 may have a moving wheel 23. When the second angle θ2 becomes larger, the moving wheel 23 will move toward the rear of the flywheel vehicle 1; when the second angle θ2 becomes smaller, the moving wheel 23 will move toward the front of the flywheel vehicle 1.

[0082] See also Figures 1 to 5 When the user pulls the emergency brake lever 17 , the second linkage cable 18 pulls the second linkage seat 152 , causing the two side plates 121 of the magnetic resistance mechanism 12 to pivot, causing its brake blocks (not shown) to press against the flywheel 162 , thereby stopping the flywheel 162 .

[0083] See also Figures 1 to 5 A characteristic of the flywheel vehicle of the present invention is that, even when the linear mechanism is controlled at its shortest length, the values of the first angle θ1 and the second angle θ2 are not zero, indicating that only the first end 111a of the first lifting arm 111 is in contact with the ground, and only the first end 112a of the second lifting arm 112 is in contact with the ground. In other words, the flywheel vehicle of the present invention does not have a "base" that contacts the ground. Instead, the first lifting arm 111 and the second lifting arm 112 replace the traditional "base." In this embodiment, the first lifting arm 111 and the second lifting arm 112 both have a "T"-shaped structure, but this is not limited to this. By replacing the traditional "base" with the first lifting arm 111 and the second lifting arm 112, this design allows the flywheel vehicle 1 to have a larger adjustable slope range.

[0084] See also Figures 1 to 5 Another feature of the flywheel vehicle of the present invention is that when the linear mechanism 3 changes its length, the resistance applied to the flywheel 162 also increases or decreases synchronously, so as to simulate a more realistic riding experience.

[0085] exist Figures 1 to 5 In the embodiment of the present invention, the linear mechanism 13 is connected between the riser 101 and the second lifting arm 112. However, in another embodiment not shown, the linear mechanism 13 can also be connected between the seat tube 102 and the second lifting arm 112, as in the patent application number 113200661 previously applied by the applicant. Figure 4 In addition, in such an embodiment, both ends of the first linkage cable 14 can be connected to the first linkage seat 151 and the first lifting arm 111 respectively.

[0086] Although the above embodiment is a flywheel vehicle that can synchronously adjust the simulated slope and resistance, it is understood that the principles described in this specification can be applied to any appropriate fitness machine, such as but not limited to, elliptical trainers, steppers, rowing machines, etc.

[0087] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A flywheel vehicle, characterized in that: include: A first lifting arm comprises a first end in contact with the ground and a second end suspended in the air, wherein the first lifting arm swings with the first end as a fulcrum; A second lifting arm includes a first end in contact with the ground and a second end suspended in the air, the second lifting arm swinging with the first end as a fulcrum, and the second end of the first lifting arm is pivotally connected to the second end of the second lifting arm at a pivot point; Main frame, connected to the first lifting arm: a resistance device, disposed on the main frame and comprising an axle and a flywheel; A magnetic resistance mechanism, adjacent to the flywheel and pivotally connected to the main frame, the magnetic resistance mechanism comprising a plurality of magnets; The linkage mechanism includes a first linkage seat pivotally connected to the magnetic resistance mechanism; A first linkage steel cable, two ends of which are respectively connected to the first linkage seat and the second lifting arm or the first lifting arm; as well as A linear mechanism is connected between the main frame and the second lifting arm. The length of the linear mechanism can be adjusted to change the angle between the first lifting arm and the ground, and the angle between the second lifting arm and the ground. At the same time, the first linkage cable drags or pushes the first linkage seat, causing the magnetic resistance mechanism to pivot closer to or away from the flywheel to change the resistance applied to the flywheel.

2. The flywheel vehicle according to claim 1, wherein: The magnetic resistance mechanism includes two side plates. The first linkage seat is roughly U-shaped or F-shaped. The two sides of the first linkage seat each have a first narrow slot. The outer surfaces of the two side plates each have a first flange disposed in the corresponding first narrow slot.

3. The flywheel vehicle according to claim 2, wherein: The linkage mechanism further includes a first spring and a spring seat. The spring seat is fixed on the first lifting arm or the main frame or between the two. The first spring is arranged between the spring seat and the first linkage seat.

4. The flywheel vehicle according to claim 2, wherein: It further comprises an emergency brake wrench and a second linkage cable. The linkage mechanism further comprises a second linkage seat pivotally connected to the magnetic resistance mechanism. Two ends of the second linkage cable are respectively connected to the emergency brake wrench and the second linkage seat.

5. The flywheel vehicle according to claim 4, wherein: The second linkage seat is generally in a U-shape or a F-shape. The two side edges of the second linkage seat each have a second slot. The outer surfaces of the two side plates each have a second flange disposed in the corresponding second slot.

6. The flywheel vehicle according to claim 5, wherein: The linkage mechanism further includes a second spring and a spring seat. The spring seat is fixed on the first lifting arm or the main frame or between the two. The second spring is arranged between the spring seat and the second linkage seat.

7. The flywheel vehicle according to claim 1, wherein: The main frame includes a riser and a base tube.

8. The flywheel vehicle according to claim 7, wherein: The linear mechanism is connected between the riser and the second lifting arm.

9. The flywheel vehicle according to claim 7, wherein: The linear mechanism is connected between the seat tube and the first lifting arm.

10. The flywheel vehicle according to claim 1, wherein: The linear mechanism includes a motor, a sleeve, and a screw. The sleeve has an internal thread engaged with the screw. The motor is used to drive the screw to rotate, so that the sleeve moves along the screw toward or away from the motor, thereby changing the length of the linear mechanism.

11. The flywheel vehicle according to claim 7, wherein: When the linear mechanism adjusts its length to change the angles between the first lifting arm and the ground and the angles between the second lifting arm and the ground, the angles between the riser tube and the seat tube and the ground also change accordingly.

Images