TW202037394A - Manual treadmill capable of setting exercise speed characterized by allowing user to set exercise speed according to personal need and assisting user in walking or running exercise at the predetermined speed - Google Patents

Abstract

This invention provides a manual treadmill having: an annular belt body that can be driven by a user's feet to rotate; a sensing device that can sense the rotation speed of the annular belt body; an input device that allows the user to set the rotation speed; a resistance adjusting device that can apply resistance to the rotation of the annular belt body; and a control unit electrically connected to the aforementioned devices. In a control mode, the control unit will compare the current rotation speed of the annular belt body with a target speed set by the user, and when the current speed is less than the target speed, the control unit will control the resistance adjusting device to reduce the resistance so as to speed up the rotation speed of the annular belt body under the same force. On the contrary, when the current speed is greater than the target speed, the control unit will control the resistance adjusting device to increase the resistance so as to slow down the rotation speed of the annular belt body under the same force.

Description

Human-powered treadmill capable of setting exercise speed

The present invention is related to a treadmill of sports equipment, and more specifically, to a manual treadmill. (Note: In this case, the popular term "treadmill" is used to refer to this type of sports equipment, and it is not intended to limit its use for running sports, but also includes similar sports equipment mainly used for walking sports.)

Treadmill is a very common exercise equipment, which can be used for users to walk or run on a circular belt (commonly known as running belt). From the perspective of the power to drive the rotation of the aforementioned endless belt, treadmills can be roughly divided into two categories: powered treadmills and manual treadmills. The former uses a power device such as an electric motor to drive the endless belt to rotate, while the latter is The endless belt body is driven to rotate by the force of the user.

Generally speaking, the power running machine displays the rotation speed of the aforementioned loop belt on its meter (Note: It corresponds to the speed at which the user walks or runs on the loop belt, and is also called exercise speed below. The common unit is " Kilometers/hour" or "miles/hour"), and allows the user to set the aforementioned movement speed through the input device, and then continuously control the power output of the power device during the user's movement (for example, control the motor speed) to drive the ring The belt body rotates cyclically according to the speed set by the user. Power treadmills occupies a relatively majority in the current market, which means that more people use power treadmills for indoor walking or running. Based on the characteristic that the rotation of the loop belt can be accurately controlled by the power device, users Usually set a suitable exercise speed (or exercise program) for a fixed period of time to control the quantified intensity of each exercise and calorie consumption.

In contrast, a human-powered treadmill cannot drive and control the rotation of the aforementioned endless belt. It must use the user's walking or running action on the top surface of the endless belt to continuously apply the force to the aforementioned top surface through both feet. The forward and backward force is used to drive the endless belt body to circulate rotation. Among them, the movement of the user during exercise, such as whether the hands grasp the grip on the front of the treadmill or the handrails on both sides (to increase or decrease the force of the feet), and the steps Fast or slow, larger or smaller steps, etc., will affect the loop The rotation speed of the belt body. In addition, if the top surface of the ring-shaped belt body presents a concave arc-shaped human-powered treadmill, such as the technology disclosed in US Patent No. 8,343,016, the front and rear positions of the user stepping on the top surface will also affect the ring The speed of rotation of the strip. At the same time, many human-powered treadmills are equipped with a resistance adjustment device that can apply resistance to the rotation of the endless belt. The user can manually select the appropriate resistance according to personal conditions and the type of exercise performed. For example, the resistance used when running is usually less than The resistance used when walking; conversely, adjusting the aforementioned resistance will change the speed of movement under the same action or the same output. However, for users, changing their own movement, forward and backward positions, and/or adjusting the aforementioned resistance, etc., basically only change the relative degree of movement speed (for example, make the speed "faster" or "slower"). It is not possible to determine the absolute value of the exercise speed (for example, keep the speed exactly 10 km/h). From this point of view, the human-powered treadmill is more difficult to meet the need to walk or run at a specific speed, so as to control the quantification of the exercise Intensity and calorie users. A small number of human-powered treadmills continuously sense and display the rotation speed of the endless belt body, which improves the above problems to some extent. However, even if the user can know the current exercise speed at any time during exercise, he wants to change himself The movement action, front and back position and/or adjustment of the aforementioned resistance, arbitrarily accelerate or slow down from the current movement speed to a specific speed, and then maintain the specific speed (until you want to change to another specific speed or end the exercise), In fact, it is not easy, and it makes users unable to concentrate on exercise and enjoy exercise.

U.S. Patent No. 8,007,408 discloses a human-powered treadmill that can help control the exercise speed to a set value, in which the control unit of the treadmill can control the elevation angle of the treadmill (equipped with an endless belt) through an electronic control mechanism. Moreover, the control unit will monitor the rotation speed of the endless belt body when the user is exercising. If the current exercise speed is slower/faster than the set speed, it will control the running platform (together with the endless belt). (Body) Increase/decrease the elevation angle to increase/decrease the component force of the user’s downward force in the direction of movement of the top surface of the ring-shaped belt body, so as to speed up/slow down the speed of the ring-shaped belt body. Make the movement speed approach or conform to the set speed. However, according to the lifting technology, if you want to change the exercise speed, you need to change the elevation angle of the top surface of the ring-shaped belt (hereinafter also referred to as the exercise surface), which undoubtedly limits the freedom and selectivity of walking or running with a treadmill. Specifically, the user cannot accelerate from walking to running, or decelerate from running to walking, and cannot choose to exercise on a sports surface with a relatively small elevation angle. Relatively fast movement, relatively slow movement on a moving surface with a relatively large elevation angle.

The main purpose of the present invention is to provide a human-powered treadmill, which allows the user to set the exercise speed according to personal needs and assist the user to walk or run at the set speed.

Another object of the present invention is to provide a human-powered treadmill, which allows the user to set the exercise speed according to personal needs and assist the user to walk or run at the set speed, wherein when the exercise speed changes, the user The angle of the movement surface under the foot can be kept unchanged, or as long as possible on the premise that reaching the set speed is the priority.

Another object of the present invention is to provide a human-powered treadmill, which allows the user to set the angle and speed of the exercise surface according to personal needs, and assist the user to walk or run at the set speed at the set angle .

In order to achieve the purpose of the above disclosure, the human-powered treadmill provided by the present invention includes: a frame body; an endless belt body, which is arranged on the frame body in a cyclically rotatable manner, and can be used by a user on its top surface Perform walking or running exercises, and can rotate cyclically when the user applies force from the front to back to the top surface; the predetermined section of the top surface of the endless belt forms a main stress area, and the top surface is at least in the aforementioned The main force-bearing area extends from the front top to the back bottom; a sensing device, which can sense the parameters corresponding to the rotation speed of the aforementioned endless belt, and generate a corresponding speed signal; an input device for the user The input contains instructions for setting the rotation speed of the aforementioned endless belt, and generates a corresponding indication signal; a resistance adjustment device can generate resistance that hinders the rotation of the aforementioned endless belt, and can be controlled by a first control signal to change the aforementioned The magnitude of the resistance; a control unit that can receive the aforementioned speed signal from the aforementioned sensing device to obtain a current velocity value, receive the aforementioned indication signal from the aforementioned input device to obtain a target velocity value, and generate to control the aforementioned The first control signal of the resistance adjusting device; at least at a certain time in a control mode, the control unit controls the resistance adjusting device to reduce the resistance because the current speed value is lower than the target speed value, or because The current speed value is higher than the aforementioned target speed value, and the aforementioned resistance adjusting device is controlled to increase the aforementioned resistance. As a result, without the need for the user to control, the rotation resistance of the aforementioned endless belt body will automatically decrease/increase because the current rotation speed is slower/faster than the speed set by the user, so that the endless belt body is under the same force The speed increases/slows down, thus approaching or in line with the speed set by the user.

Preferably, during a period of time in the aforementioned control mode, the aforementioned control unit will reverse The aforementioned current speed value is compared with the aforementioned target speed value. Whenever the aforementioned current speed value is lower than the aforementioned target speed value and the aforementioned resistance has not reached the lower limit of the adjustable range, the aforementioned resistance adjusting device is controlled to reduce the aforementioned resistance, and vice versa, whenever When the current speed value is higher than the target speed value and the resistance has not reached the upper limit of the adjustable range, the resistance adjustment device is controlled to increase the resistance. As a result, during this period, even if the force applied by the user to the aforementioned endless belt body is changed, the rotation speed of the endless belt body can still be kept close to or in line with the speed set by the user.

Preferably, the control unit estimates the rotation speed of the endless belt body when the resistance is adjusted to the lower limit of the adjustable range based on the change relationship between the resistance and the current speed value, so as to correct the input device The upper limit of the rotation speed of the aforementioned endless belt can be set by the current user. In this way, the user can grasp the upper limit of the individual's possible exercise speed, and the user experience is better.

Preferably, the frame body includes a fixed frame and a movable frame whose position can be changed relative to the fixed frame; the ring-shaped belt body is at least partially provided on the movable frame, and when the position of the movable frame relative to the fixed frame changes At the same time, the elevation angle of the front end of the main force-bearing area of the endless belt body relative to the rear end will also change accordingly; an elevation angle adjustment device is provided between the fixed frame and the movable frame, which can be controlled by a second control signal The movable frame is driven to change its position relative to the fixed frame; the control unit can generate the second control signal for controlling the elevation adjustment device. Thereby, the user can exercise at the set speed under different aforementioned elevation angles.

Preferably, at least at a certain time in a control mode, the control unit controls the elevation angle adjusting device to increase the elevation angle because the current speed value is lower than the target speed value, or because the current speed value is higher than The target speed value controls the elevation angle adjusting device to reduce the elevation angle. In this way, in addition to the aforementioned resistance will automatically increase or decrease, the aforementioned elevation angle will also automatically increase/decrease because the current rotation speed of the loop belt is slower/faster than the speed set by the user, so that the user's downward force is in the loop. The component force in the direction of movement of the top surface of the belt (especially the main force-bearing area) increases/decreases, so that the speed of the ring-shaped belt is accelerated/slowed, thus approaching or conforming to the user's setting speed.

Preferably, in a control mode, if the aforementioned current speed value is lower than the aforementioned target speed value, and the aforementioned resistance has reached the lower limit of the adjustable range and the aforementioned elevation angle has not reached the upper limit of the adjustable range, the aforementioned control unit will control the aforementioned The elevation angle adjustment device increases the aforementioned elevation angle. In this way, after the aforementioned resistance is reduced to a minimum, the movement speed may continue to increase.

Preferably, the control unit does not actively control the elevation angle adjustment device before the resistance reaches the lower limit of the adjustable range. In this way, unless the aforementioned elevation angle is changed to achieve the speed set by the user, the aforementioned elevation angle will not be changed automatically.

Preferably, the aforementioned input device allows the user to input an instruction containing the aforementioned elevation angle; when the aforementioned control unit receives the aforementioned instruction signal containing the aforementioned elevation angle, it will control the aforementioned elevation adjustment device to make the aforementioned elevation angle conform to the user's instruction . In this way, the user can choose to exercise at a specific speed at a specific elevation angle.

Preferably, the aforementioned input device allows the user to select one aforementioned exercise intensity from among a plurality of exercise intensities, and each aforementioned exercise intensity is preset with an elevation value and a speed value; when the aforementioned control unit receives the aforementioned instruction containing the aforementioned exercise intensity After the signal is received, the elevation angle adjusting device is controlled so that the elevation angle matches the elevation angle value preset by the exercise intensity, and the speed value preset by the exercise intensity is used as the target speed value. Thereby, the user can quickly increase or decrease the overall intensity of exercise in stages.

Preferably, the aforementioned control unit estimates the aforementioned resistance when the aforementioned resistance is adjusted to the lower limit of the adjustable range and the aforementioned elevation angle is adjusted to the upper limit of the adjustable range based on the relationship between the aforementioned resistance, the aforementioned elevation angle, and the aforementioned current speed value. The rotation speed of the endless belt is corrected according to the aforementioned input device to allow the user to set the upper limit of the rotation speed of the endless belt. In this way, the user can grasp the upper limit of the individual's possible exercise speed, and the user experience is better.

10‧‧‧Frame

11‧‧‧Base

12‧‧‧Front pillar

13‧‧‧Back pillar

14‧‧‧Sidestick

15‧‧‧Front frame

16‧‧‧Fixed frame

17‧‧‧Activity rack

21‧‧‧Front roller

22‧‧‧Back roller

23‧‧‧Annular belt

24‧‧‧Top surface

25‧‧‧Main stress area

26‧‧‧Plate

27‧‧‧Shaft

28‧‧‧Flywheel

30‧‧‧Arresting device

40‧‧‧Instrument cluster

41‧‧‧Display device

42‧‧‧First input device

43‧‧‧Second input device

44‧‧‧Third input device

50‧‧‧Resistance adjustment device

51‧‧‧Metal disc

52‧‧‧Stepping motor

53‧‧‧Deflection Frame

54‧‧‧Permanent Magnet

60‧‧‧Control Unit

70‧‧‧Generator

71‧‧‧Small pulley

72‧‧‧Large pulley

73‧‧‧Drive belt

80‧‧‧Sensing device

90‧‧‧Elevation angle adjustment device

101~109‧‧‧Program

201~216‧‧‧Program

A1‧‧‧First axis

A2‧‧‧Second axis

A3‧‧‧The third axis

CF1‧‧‧First component

CF2‧‧‧Second component

DF‧‧‧Downward Force

S‧‧‧Sports Space

U‧‧‧User

V‧‧‧Vertical line

θ 1‧‧‧First elevation angle (included angle)

θ 2‧‧‧The second elevation angle (included angle)

The structure, actions and effects of several possible implementation aspects of the present invention will be described in detail below with the accompanying drawings, in which: Figure 1 is a perspective view of a human-powered treadmill according to a first preferred embodiment of the present invention; Figure 2 is a first comparison of the present invention A side view of a human-powered treadmill of a preferred embodiment; Figure 3 is an enlarged view of the (imaginary line) rectangular frame in Figure 1; Figure 4 is an enlarged view of the (imaginary line) rectangular frame in Figure 2; Figure 5 Shows the front end structure of the treadmill of the human-powered treadmill according to the first preferred embodiment of the present invention; FIG. 6 is a schematic diagram of the speed control structure of the human-powered treadmill according to the first preferred embodiment of the present invention; Fig. 7 is a flow chart of a control mode of the human-powered treadmill according to the first preferred embodiment of the present invention; Fig. 8 is similar to Fig. 6 and shows a modification of the first preferred embodiment of the present invention; Fig. 9 is the present invention The second preferred embodiment of the invention is a schematic diagram of the structure of a human-powered treadmill with regard to speed control; FIGS. 10A and 10B are respectively schematic diagrams of 9 in which the endless belt body bears the same downward force when it is at the first elevation angle and the second elevation angle; And FIG. 11 is a flowchart of a control mode of the human-powered treadmill according to the second preferred embodiment of the present invention.

Please refer to FIGS. 1 and 2. The human-powered treadmill according to the first preferred embodiment of the present invention has a frame 10 made of a plurality of metal bones. The frame 10 mainly includes a stable support on the ground. The base 11, the left and right front pillars 12 extending upward from the left and right sides of the front end of the base 11, the left and right rear pillars 13 extending upward from the left and right sides of the rear end of the base 11, respectively The left and right side rods 14 between the top ends of the front pillars 12 on the left and right sides and the top ends of the rear pillars 13 and a front frame 15 connected between the top ends of the left and right front pillars 12. Among them, the base 11 is used as the treadmill frame of the treadmill, and its occupied area is generally a rectangle with long front and rear and short left and right sides, and a exercise space S is formed above it. The rear end of the aforementioned exercise space S has an entrance (Note: It is located between the two left and right rear pillars 13, not numbered), allowing the user to enter the exercise space S forward from the rear of the treadmill, and exit the treadmill from the exercise space S backward.

The front and rear ends of the base 11 are respectively provided with a front drum 21 and a rear rear drum 22 that can rotate in situ according to its own axis. The axis of the front drum 21 (first axis) A1 and the axis of the rear drum 22 (first axis) Both axes) A2 correspond to the left and right axis. An endless belt body 23 wraps the front roller 21 and the rear roller 22 at the same time with appropriate tension, so that it can cyclically rotate on the base 11 with the top surface/bottom surface moving in the front and rear directions, and when rotating, it will also drive the front roller 21 and the rear roller 22 rotate in place. As shown in FIG. 2, the height of the front roller 21 from the ground is higher than that of the rear roller 22, so that the top surface of the endless belt body 23 forms a slope with high front and low back. The user can perform walking or running exercises on the inclined top surface of the ring-shaped belt 23, such as slow walking, fast walking, jogging, fast running, reverse walking, reverse running, side walking, etc. Under normal usage, the user Performing the various exercises listed above is to apply the force of moving from the higher front end to the lower rear end to the top surface of the loop belt body 23 through both feet. Among them, when performing reverse walking or reverse running, it faces the rear of the treadmill. , When walking sideways, face the side of the treadmill. In the ring There is a flat plate 26 fixed on the base 11 between the top surface and the bottom surface of the belt body 23. The top surface of the plate 26 is parallel to the top surface of the annular belt body 23 to support the user to step on the annular belt body 23. the weight of.

As shown in Figure 1, the human-powered treadmill of the present preferred embodiment can optionally be provided with an arresting device 30 in the aforementioned exercise space S. The aforementioned arresting device 30 is substantially a Y-shaped belt-shaped body, as required It is detachably fitted between the center of the front frame 15 of the frame body 10 and the top ends of the two left and right rear pillars 13, and is stretched at an appropriate height above the annular belt body 23. When the user enters the exercise space S to walk or When running, the blocking device 30 can block the user’s waist to block his advancement, so that the user does not need to grasp the grips or handrails of the frame 10 (such as the appropriate part of the front frame 15 or the side bar 14) to take advantage of the reaction. The force enhances the backward pushing force of the foot on the top surface of the ring-shaped belt body 23, so that walking or running can be performed in a natural motion like outdoor exercise. The application of the aforementioned arresting device 30 on a human-powered treadmill is a prior art. For related details, please refer to the specification of my country's Patent No. 1593444. However, for the human-powered treadmill of the present invention, the blocking device 30 that can assist the user to push the endless belt 23, and even the grips or handrails on the frame 10 are not necessarily indispensable. In other words, when using the human-powered treadmill of the present invention to walk or run, the user may not need to grasp the frame or lean forward against the blocking device to generate a reaction force. The component force in the movement direction of the top surface of the body 23 can drive the aforementioned top surface to move from a higher front end to a lower rear end.

The center of the front frame 15 of the frame 10 is provided with an instrument cluster 40. The instrument cluster 40 has a display device 41 for displaying various information for the user to view, and a first input device for the user to input various instructions 42. The display device 41 and the first input device 42 shown in the figure are only illustrative. The specific structure in practice can be selected from various conventional devices or used in combination. For example, the display device 41 may include: a character display (such as a seven-segment display). /9-segment/14-segment/sixteen-segment display), dot matrix display, liquid crystal display, etc., and the first input device 42 may include: buttons, knobs, sliders, levers, touch switches, non-contact Switch, touch screen, etc.

The user can input an instruction to set the rotation speed of the aforementioned endless belt 23 (or the user's exercise speed) through the first input device 42. For example, the user can set the exercise speed on a general powered treadmill. It is possible to use the numeric keys provided by the first input device 42 or the so-called "quick keys" to designate a specific speed (for example, "10 km/h"), and use the "plus key" or "minus key" to indicate speed up or down Speed (e.g. each press will increase or decrease 0.5 km/h), Or use various input methods to select or edit an exercise program with a time length set and the exercise speed can be changed according to time sequence. Among them, the setting content of an exercise program is as follows: The total time is 30 minutes, and the unit is divided into 2 minutes. 15 time periods, the movement speed in each time period is 2, 4, 4, 6, 6, 8, 8, 10, 8, 8, 6, 6, 4, 4, 2 km/h, and so on. Moreover, the first input device 42 allows the user to input an instruction to set the exercise speed, and it also includes a situation where the user may not know the specific value of the set exercise speed. For example, the user just chooses to perform "fast walk for 15 minutes" or "jogging". For exercise schedules such as "30 minutes" or exercise intensity such as "Level 1" and "Level 2", it is not clear the specific value of the exercise speed preset for each stroke/intensity. In this preferred embodiment, a second input device 43 and a third input device 44 are respectively provided at the top of the left and right front pillars 12 of the frame body 10, so that the user can more conveniently perform common exercises during exercise. Speed indication, for example, the second input device 43 is provided with "warm-up" and "cool-down" buttons corresponding to a preset speed respectively, and the third input device 44 is provided with respectively representing acceleration and Deceleration "plus key" and "minus key". In the following, the first input device 42, the second input device 43, and the third input device 44 are collectively referred to as "input devices".

During the exercise of the user, the display device 41 may continuously display or display the following information when necessary: the exercise speed and/or exercise program set by the user (for example, the temporal change of the exercise speed displayed graphically), the endless belt 23 Current rotation speed (that is, the user's current exercise speed), exercise time so far, exercise distance so far, calories consumed so far, etc. Among them, the rotation speed of the endless belt body 23 or the movement speed of the user can be obtained by, for example, measuring the rotation speed of the front roller 21 or the rear roller 22 and then converting them. This part will be further explained later. In addition, the aforementioned movement distance can be obtained, for example, by measuring the number of rotations of the front roller 21 or the rear roller 22 and then converted. The aforementioned calorie consumption can be calculated and accumulated by a preset formula based on parameters such as movement speed and movement time or movement distance. All are the prior art in the treadmill field.

3 and 4, the left end of the front roller 21 coaxially protrudes a rotating shaft 27, the outer end of the aforementioned rotating shaft 27 is coaxially fixed to a metal flywheel 28, the aforementioned flywheel 28 rotates synchronously with the front roller 21 to increase the front roller The moment of inertia when 21 rotates in place makes the endless belt body 23 mutually driven by the front roller 21 relatively stable and smooth during cyclic rotation.

Please refer to Figure 5 again. A resistance adjusting device 50 is provided near the left end of the front roller 21 to generate resistance that hinders the rotation of the front roller 21 (and the endless belt 23). The aforementioned resistance adjusting device 50 mainly includes a metal disc 51. A stepping motor 52, a deflection seat 53 and two permanent magnets Iron 54, wherein the metal disc 51 is coaxially fixed on the aforementioned rotating shaft 27 and will rotate in situ with the front roller 21; the deflection seat 53 is pivoted on the aforementioned base 11 according to a third axis A3 corresponding to the left and right axis, Located near the front edge of the metal disc 51; the aforementioned two permanent magnets 54 are respectively arranged on the two opposite inner walls of a U-shaped part of the deflection seat 53, and they are opposite to each other and form a gap therebetween. The position matches the position of the axial thickness of the metal disc 51. In other words, the front edge of the metal disc 51 can enter between the two permanent magnets 54; the stepping motor 52 is installed on the base 11, and its basic step angle The (step angle) is 0.9 degrees, and the deflection seat 53 can be driven at the position drawn by the solid line (hereinafter referred to as the outermost position) and the position drawn by the imaginary line (hereinafter referred to as the innermost position) in Fig. 4 according to the third axis A3 Deflection within a range of nearly 60 degrees between them, and the deflection seat 53 can be stopped at one of 64 predetermined positions (including the aforementioned outermost position and innermost position) equally spaced within the aforementioned angular range; The direction of the aforementioned outermost position is deflection (clockwise rotation in Fig. 4), and the overlapping area of the aforementioned two permanent magnets 54 and the metal disc 51 in a side view becomes smaller, until there is no overlap at all; the deflection seat 53 moves toward the aforementioned innermost position The direction of the deflection (counterclockwise rotation in FIG. 4), the more the aforementioned overlapping area, until the permanent magnet 54 completely faces the metal disc 51. To put it simply, the resistance adjusting device 50 of the preferred embodiment is essentially an eddy current brake, that is, when the metal disc 51 enters between the two permanent magnets 54 relatively, the rotating metal circle Eddy current resistance is generated between the disk 51 and the immovable permanent magnet 54 to hinder the rotation. When the endless belt 23 circulates, the metal disk 51 is driven to rotate in place at a corresponding speed, so the aforementioned eddy current resistance becomes an obstacle. One of the resistance of the endless belt body 23 to cyclically rotate. The magnitude of the aforementioned eddy current resistance will vary with the overlapping area of the permanent magnet 54 and the metal disc 51. In this example, because the stepper motor 52 can adjust the angular position of the deflection seat 53 in 64 steps, the aforementioned resistance adjustment The device 50 can theoretically finely adjust the rotation resistance of the endless belt body 23 from the smallest to the largest in 64 stages.

Of course, in addition to the lifting structure and adjustment method, the resistance adjustment device in the present invention can also adopt various other possible structures and adjustment methods, including but not limited to the following examples: First, it is also an eddy current brake, but based on position A fixed electromagnet replaces the aforementioned movable permanent magnet. By controlling the magnitude of the current flowing through the electromagnet to control the magnetic field strength, the eddy current resistance between the metal disc and the electromagnet can be adjusted; second, a generator is installed (Its structure is like a DC motor). When the front roller or the rear roller rotates, the rotor of the generator is driven to rotate, and the power output of the generator is connected to a load circuit. By controlling the load of the generator, the front roller can be adjusted. The rotation resistance of the roller or the rear roller; third, use friction resistance as the source of resistance, such as setting A friction block contacting the flywheel, and an electronic control actuator drives the friction block to tighten or loosen the flywheel to adjust the rotation resistance of the flywheel. For example, a friction belt around the periphery of the flywheel is provided. One end is fixed, the other end can be tightened or loosened by an electronically controlled actuator, and the rotation resistance of the flywheel can also be adjusted. Others, such as wind resistance, water resistance, oil pressure resistance, etc., may also be the source of resistance for the resistance adjustment device.

Referring to Fig. 5, near the right end of the front drum 21 (left side in Fig. 5) is provided a power generating device 70. The structure of the power generating device 70 is similar to a DC motor. The outer end of the rotor is coaxially fixed with a small pulley 71; correspondingly, the front drum 21 A large pulley 72 is coaxially fixed to the right end of the, and a transmission belt 73 is sleeved between the large pulley 72 and the small pulley 71, so that when the front drum 21 rotates in place, the rotor of the power generator 70 will rotate at a faster speed. When the rotation speed is fast enough, the power generating device 70 can generate the corresponding power. The foregoing power will be transmitted to a power storage device (not shown in the figure) for temporary storage, and then provided to the electronic or electrical devices on the treadmill that need power to work, such as The display device 41, the input devices 42, 43, 44, the resistance adjustment device 50, and the like. Of course, the human-powered treadmill of the present invention may also be equipped with other power supply modules or even an external power supply, so that all electronic and electrical devices can obtain sufficient power at any time.

Since the speed at which the endless belt 23 drives the front drum 21 to rotate faster/slower, the output current or output power of the generator 70 will be higher/lower. Therefore, it can be converted by measuring the current or power of the generator 70 The rotation speed of the endless belt body 23, that is, the aforementioned power generating device 70 and the structure of the front roller 21 connected to the power generating device 70 via a belt transmission mechanism, constitute a sensor that can sense the rotation speed of the endless belt body 23.装置80。 Device 80.

Of course, in addition to the above-mentioned structure and sensing method, the sensing device in the present invention can also adopt various other possible structures and sensing methods, including but not limited to the following examples: light sensing, magnetic sensing, and image sensing. Sensing, etc., to sense the rotation speed of the front drum 21 or the rear drum 22 (or components that rotate with the front drum 21 or the rear drum 22, such as the aforementioned flywheel 28, metal disc 51, large pulley 72, etc.), by The aforementioned rotational speed is converted into the rotational speed of the endless belt body 23. A more specific solution is as follows (not shown in the figure): a grating disk that rotates with the front roller 21 is set, and the near outer edge of the grating disk is provided with a number of openings arranged equally spaced along the circumference, and the grating Both sides of the disk are respectively provided with a fixed light emitter and a light receiver. By measuring the frequency at which the light from the light emitter irradiates the light receiver through the opening, the rotation speed of the grating disk can be obtained. Then convert the rotation speed of the endless belt body 23, for example, suppose that the grating disc and the front roller 21 The speed ratio is 1:1, and the circumferential length of the front drum 21 is known to be 25 cm. Then, when the measured speed of the grating disc is 300 rpm (equal to 18000 revolutions per hour), the rotation of the endless belt body 23 can be estimated The speed is 4.5 km/h. In general, in the present invention, the aforementioned sensing device can sense the parameters corresponding to the rotation speed of the aforementioned endless belt body and generate a corresponding speed signal. The aforementioned speed signal may be a signal that has not yet undergone conversion processing ( For example, the pulse signal generated by the excitation of the aforementioned optical receiver) may also be a signal that has undergone conversion processing (for example, an analog or digital signal corresponding to a speed value).

6 is a schematic diagram of the structure of the human-powered treadmill of the preferred embodiment, in which a user U is shown walking or running on the top surface 24 of the endless belt 23, and the user U in exercise usually steps on the aforementioned Within a predetermined section (hereinafter referred to as the main force-bearing area) 25 of the top surface 24, the aforementioned main force-bearing area 25 is an inclined surface that is high in the front and low in the back, allowing the user U to generate downward force along the inclined surface from the front to the top. The backward and downward component forces are beneficial for the user U to apply force from front to back to the top surface 24 of the ring-shaped belt body 23, so that the ring-shaped belt body 23 cyclically rotates in the corresponding direction. During exercise, the aforementioned resistance adjusting device 50 can generate resistance that hinders the circular rotation of the endless belt body 23 (at the same time, it is also the resistance for the user U to drive the endless belt body 23 to walk or run), and the aforementioned sensing device 80 can sense the rotation speed of the endless belt 23 (that is, the movement speed of the user U walking or running on the endless belt 23).

The aforementioned human-powered treadmill also has a control unit 60. The aforementioned control unit 60 can perform calculations, judgments, and controls according to preset rules. The specific structure in practice mainly includes a programmable microprocessor and a memory that can access data. The body is usually installed inside the instrument cluster 40, and is electrically connected to the display device 41, the input devices 42, 43, 44, the resistance adjustment device 50, and the sensing device 80 through wired or wireless means. When the user inputs instructions through the input devices 42, 43, 44, the input devices 42, 43, 44 will generate a corresponding instruction signal and send it to the control unit 60, and the control unit 60 will perform corresponding processing, wherein, when the instruction signal corresponds to When it contains instructions for setting the rotation speed of the endless belt 23, the control unit 60 can obtain a target speed value from it, that is, the specific value of the movement speed set by the user (including the value directly indicated by the user and the value indicated by the user indirectly). Corresponding preset value). The control unit 60 also receives the aforementioned speed signal from the sensing device 80, and thereby obtains a current speed value, that is, the specific value of the current rotation speed of the endless belt body 23. The control unit 60 can use a first control signal to control the resistance adjusting device 50 (for example, to control the driving circuit of the stepping motor 52) to change the resistance. Control sheet The unit 60 can control the display device 41 to display specific information, such as the aforementioned target speed value, current speed value, exercise time so far, exercise distance so far, and calories burned so far. The operating power of the control unit 60 may come from the aforementioned power generating device 70 and the power storage device, or may partially or completely use the power supplied at any time, without relying on the user U to exercise for power generation.

Fig. 7 shows the basic flow of a control mode of the aforementioned human-powered treadmill. Simply put, in this control mode, the control unit 60 repeatedly compares the aforementioned current speed value and the aforementioned target speed value that may vary, and whenever the current speed value When it is lower than the target speed value and the aforementioned resistance has not reached the lower limit of the adjustable range, the resistance adjustment device 50 is controlled to reduce the resistance. On the contrary, whenever the current speed value is higher than the target speed value and the aforementioned resistance has not reached the upper limit of the adjustable range, That is, the resistance adjusting device 50 is controlled to increase the resistance. The following will further explain each program and its flow in Figure 7. Among them, the branch after the judgment program (diamond box), "Y" represents "the judgment result is Yes", and "N" represents "the judgment result is No".

The "mode activation" referred to in the program 101 may include two conditions. One is that the control unit 60 starts to run this control mode in response to an instruction input by the user, and the other is that the control unit 60 automatically operates according to preset rules without user selection. Run this control mode. The latter, for example, automatically runs this control mode whenever the system gets working power or restarts. Another example is when the control unit 60 determines that a user starts to move on the endless belt 23 based on the aforementioned changes in the speed signal. This control mode is automatically run.

When this control mode just starts running, that is, in program 102, the control unit 60 will first substitute a preset speed value into the target speed value as a temporary target before the user sets the exercise speed. For safety reasons, the aforementioned preset speed value is preferably a relatively slow movement speed, such as the walking speed of an average person, for example, 4 km/h.

Then, in the program 103, the control unit 60 will determine whether it has newly received an instruction signal containing the set movement speed from the input devices 42, 43, 44 (for example, corresponding to the user designating a specific speed, instructing to speed up or slow down Movement speed, instructions for selecting and executing a movement program, etc.), and if the movement program previously selected by the user is currently being executed, it is also necessary to determine whether the movement speed should be changed at this time according to the movement speed time sequence set by the movement program; If there is a need to change the target speed value, first enter the program 104, the control unit 60 will change the existing target speed value to the new target speed value according to the latest input instructions or according to the setting of the motion program, and then enter the program 105; Otherwise, maintain the current target speed value and go directly Enter program 105.

In step 105, the control unit 60 compares the aforementioned current speed value with the target speed value to determine whether the current speed value is less than the target speed value (or less than a predetermined level, such as 0.1 km/h), and if so, enters step 107 ; Otherwise, enter program 106.

From the aforementioned procedure 105 to the procedure 106, it indicates that the current speed value is not less than the target speed value (or does not exceed the aforementioned predetermined level), and the control unit 60 will then determine whether the current speed value is greater than the target speed value (or greater than a predetermined level, For example, 0.1 km/h), if yes, enter program 110; otherwise, it means that the current speed value is equal to the target speed value (or the difference between the two is within a predetermined degree), the flow returns to the aforementioned program 103, and re-judge whether there is any change to the target speed value need.

From the aforementioned program 105 to the program 107 (located on the left half of the flowchart), it means that the current speed value is less than the target speed value (or less than the aforementioned predetermined level), and the control unit 60 will further determine whether the current resistance of the resistance adjustment device 50 has reached For the lower limit of the adjustment range, in this example, it is to determine whether the deflection seat 53 is in the outermost position (FIG. 4 ), if yes, enter the program 109; otherwise, enter the program 108. In program 108, the control unit 60 controls the resistance adjusting device 50 to reduce its resistance. In this example, it controls the deflection seat 53 to deflect to the outermost position. Then, the flow returns to the program 103 to determine whether there is any change. The need for the target speed value.

Symmetrically, from the program 106 to the program 110 (located on the right half of the flowchart), it means that the current speed value is greater than the target speed value (or greater than the aforementioned predetermined level), and the control unit 60 will further determine the current resistance of the resistance adjustment device 50 Whether the upper limit of the adjustable range has been reached, in this example, it is judged whether the aforementioned deflection seat 53 is in the aforementioned innermost position, if so, enter the program 112; otherwise, enter the program 111. In program 111, the control unit 60 controls the resistance adjustment device 50 to increase its resistance. In this example, it controls the deflection seat 53 to the direction of the innermost position. Then, the flow returns to the program 103 to determine whether there is any change. The need for the target speed value.

In detail, the control unit 60 controls the resistance reduction in the aforementioned program 108 and controls the increase of the resistance in the aforementioned program 111. There are two different methods of implementation. The first method is that the control unit 60 will be in the program 108/program 111. Continue to control the reduction/increase resistance, so that the rotation speed of the endless belt body 23 is increased/slowed due to the reduction/increase of the rotation resistance, until the current speed value is equal to the target speed value (or the difference between the two is within a predetermined degree), or Is the resistance in the control process The lower limit or upper limit of the adjustable range has been reached before entering the next program, that is, returning to the aforementioned program 103; the second method is that the control unit 60 only controls the resistance reduction/increase by a predetermined value in the program 108/program 111 each time Degree, and usually a small adjustment, for example, control the deflection seat 53 of the resistance adjustment device 50 to shift a position (that is, 1/64 of the adjustment range) to the direction of the outermost position/innermost position, and then Return to the aforementioned procedure 103. In the second method of revealing, even if the current speed value and the target speed value are quite different at first, the numerical comparison and resistance control procedures (such as procedures 103, 105, 107, 108, 103...) , Or the loop of programs 103, 105, 106, 110, 111, 103...), the current speed value will also approach or meet the target speed value.

From the aforementioned program 107 to the program 109 (located at the far left of the flowchart), it means that the current rotation speed of the endless belt 23 is still slower than the speed set by the user, but the rotation resistance of the endless belt 23 has reached the adjustable range. The lower limit, that is, in principle, it is no longer possible to help speed up the movement by reducing the resistance. At this time, the control unit 60 will control the display device 41 to display relevant information to inform the user that the movement speed may have reached the upper limit, and the control unit 60 The target speed value is appropriately corrected according to the current speed value at this time, and the input devices 42, 43, 44 are corrected accordingly to allow the current user to set the upper limit of the exercise speed.

Symmetrically, from the aforementioned program 110 to the program 112 (located at the far right of the flowchart), it means that the current rotation speed of the endless belt 23 is still faster than the speed set by the user, but the rotation resistance of the endless belt 23 has reached the desired level. The upper limit of the adjustment range, that is, in principle, it is no longer possible to increase the resistance to help slow down the movement speed. At this time, the control unit 60 will control the display device 41 to display relevant information to inform the user that the movement speed may have reached the lower limit, and , The control unit 60 appropriately corrects the target speed value according to the current speed value at this time, and accordingly corrects the input devices 42, 43, 44 to allow the current user to set the lower limit of the movement speed.

The main reason for the design of the aforementioned program 109 and program 112 is that different users may have different weights. In theory, if other conditions are the same, a user with a heavier weight may drive the endless belt body 23 to rotate at a higher upper limit and lower limit. For users with light weight, when a user just starts to use the aforementioned human-powered treadmill, the input devices 42, 43, 44 will temporarily allow the user to set the exercise speed arbitrarily within a regular range, for example, a weight of 100 Both kilograms and 50 kg users can set the exercise speed to a high speed of 16 km/h or a low speed of 0.5 km/h, but the high speed that a heavier user can reach, may even a lighter user It can’t be achieved even if the resistance is minimized. On the contrary, it can be achieved by lighter users. It is possible that a user with a heavier weight may not be able to achieve it even if the resistance is adjusted to the maximum. Therefore, the aforementioned control mode uses programs 109 and 112 to modify the user’s exercise speed to be higher than his own upper limit and lower than his own. The condition of the lower limit. The possible setting range of the movement speed will be reset to the aforementioned normal range after the endless belt body 23 stops rotating.

Preferably, in the aforementioned control mode operation, the control unit 60 can estimate the loop-like belt body when the aforementioned resistance is adjusted to the lower limit (and upper limit) of the adjustable range based on the change relationship between the aforementioned resistance and the current speed value. According to the rotation speed of 23, the input devices 42, 43, 44 can be modified for the current user to set the upper limit (and lower limit) of the movement speed. In this way, the user can grasp the upper limit (and lower limit) of the individual's possible movement speed, and the user experience is better.

It can be seen from the above description of the process shown in FIG. 7 that when the user walks or runs on the human-powered treadmill of the preferred embodiment operating in the aforementioned control mode, basically, the rotation of the endless belt 23 The resistance will automatically decrease/increase because the current rotation speed is slower/faster than the speed set by the user, so that the endless belt body 23 speeds up/slow down under the same force, thus approaching or in line with the speed set by the user . Moreover, by repeatedly comparing the current speed value with the target speed value, and controlling the resistance increase or decrease according to the comparison result, even if the movement speed set by the user changes during the exercise, and/or the user exerts force on the endless belt 23 With the change, the rotation speed of the endless belt body 23 can still keep close to or meet the speed set by the user.

In addition to the aforementioned control mode, the human-powered treadmill of this preferred embodiment may also operate in other modes. For example, in an alternative control mode, the control unit 60 does not actively control the aforementioned resistance. Instead, use The user can command the control unit 60 to adjust the aforementioned resistance through the input devices 42, 43, 44, that is, like a traditional human-powered treadmill, the user can set an appropriate resistance for walking or running, and adjust it at any time during the exercise. resistance.

In the above-disclosed preferred embodiment, the ring-shaped belt body 23 adopts the most commonly used structure of general treadmills, that is, it is formed by connecting a long belt body end to end, and has a continuous ring surface with top Generally, the aforementioned flat plate 26 needs to be provided under the surface 24 to support the weight of the user, and the friction between the endless belt body 23 and the flat plate 26 will also become a resistance to the endless rotation of the endless belt body 23. The annular belt body of the human-powered treadmill of the present invention may also adopt the slat-belt structure in the prior art, that is, it is formed by juxtaposed and hinged plates extending in the left and right directions, which can directly support the user Weight, and less resistance to rotation. If the endless belt body adopts a crawler structure, then, according to According to design requirements, in addition to the possibility of setting the ring-shaped belt body in a form where the top surface forms a slope, it is also possible to set the ring-shaped belt body in a form where the top surface presents a concave arc shape. For example, FIG. 8 shows a modification of the preferred embodiment (note: follow the schematic method and representative symbols of FIG. 6), in which the endless belt body 23 is a crawler structure, and the endless belt body The top surface 24 of 23 presents a concave arc shape, and the middle part is lower than the front and rear ends. The user U in exercise usually steps on a main force-bearing area 25 between the front end of the top surface 24 and the middle part. The area 25 also extends from the front top to the back bottom, which is beneficial for the user U to exert force from the front to the back on the top surface 24 of the ring-shaped belt 23. When a user walks or runs on a human-powered treadmill with a concave arc on the exercise surface (that is, the aforementioned top surface 24), if the foot stepped forward is stepped forward of the main force receiving area 25 /After the foot slides down, the force applied to the top surface 24 from front to back becomes larger/smaller, and the force applied to the ring-shaped belt body 23 is not easy to maintain stable, but with the lifting control mechanism of the present invention, The movement speed can be kept close to or in line with the set speed, and will not change significantly due to changes in the user's force.

Next, please refer to FIG. 9, which is a schematic diagram of the structure of a human-powered treadmill according to the second preferred embodiment of the present invention (note: the schematic method and representative symbols of FIG. 6 are basically used), compared with the human-powered treadmill shown in FIG. 6 and FIG. The main structural feature of the human-powered treadmill of this preferred embodiment is that the frame body includes a fixed frame 16 supported on the ground and a movable frame 17 that can be changed relative to the fixed frame 16. In this example The rear end of the movable frame 17 is pivotally connected to the fixed frame 16 according to the left and right axial directions, so that the movable frame 17 can deflect up and down relative to the fixed frame 16 and the ground with its rear end as the axis; the ring-shaped belt body 23 is cyclically rotatable It is set on the movable frame 17, and the front end of the top surface 24 is higher than the rear end. When the movable frame 17 pivots up and down with its rear end as the axis, the elevation angle of the front end of the top surface 24 of the endless belt body 23 relative to the rear end is also Will follow the change; an elevation adjustment device 90, set between the fixed frame 16 and the movable frame 18, has a motor (not labeled), can drive the movable frame 17 to change its position relative to the fixed frame 16, in this case That is to drive the movable frame 17 to deflect up and down within a predetermined angle range with its rear end as the axis; the control unit 60 can use a second control signal to control the elevation adjustment device 90 to drive the movable frame 17 to deflect, which is equivalent to controlling the enlargement or reduction of the endless belt The elevation angle of the top surface 24 of the body 23.

The fixed frame 16, the movable frame 17, and the elevation angle adjustment device 90 shown in FIG. 9 are only illustrative, and the specific structure in practice can apply the corresponding structure of various power treadmills that can adjust the elevation angle of the treadmill in the prior art. In a variation of this preferred embodiment (not shown), the endless belt body 23 is only partially provided on the movable frame 17, for example, the foremost end of the endless belt body 23 is supported by the front roller on the movable frame 17. The rear end is supported by the rear roller on the fixed frame 16, so that when the movable frame When the position of 17 relative to the fixing frame 16 changes, the elevation angle of the top surface 24 of the annular belt body 23 will also change accordingly.

In addition to the above structure, the human-powered treadmill of the preferred embodiment also has a display device 41, an input device 42, 43, 44, a resistance adjusting device 50, and a sensing device 80. Since the structure and function of each device are basically the same as the previous ones. The corresponding devices in a preferred embodiment are the same, so they will not be repeated.

Please refer to FIGS. 10A and 10B, respectively, the ring-shaped belt body 23 in the schematic diagram 9 bears the same downward force DF at the first elevation angle θ 1 and the second elevation angle θ 2, that is, as shown in FIG. 10A, when the ring When the elevation angle of the top surface 24 of the belt body 23 is a relatively small first elevation angle θ1, the downward force DF of the user's weight is the component force in the direction of movement of the top surface 24 of the ring belt body 23 (first component force ) CF1 is also relatively small; relatively, as shown in FIG. 10B, when the elevation angle of the top surface 24 of the annular belt body 23 is a relatively large second elevation angle θ 2, the same downward force DF is on the annular belt body 23 The component force (second component force) CF2 in the direction of movement of the top surface 24 is relatively large (Note: the downward force DF perpendicular to the ground in each figure, the vertical line V perpendicular to the aforementioned top surface 24, and the parallel The first component force CF1/second component force CF2 on the aforementioned top surface 24 together form a right triangle). Simply put, if other conditions are the same, when the elevation angle of the top surface 24 of the ring-shaped belt body 23 is larger/smaller, the front-to-back force exerted by the user on the top surface 24 will be larger/smaller. The speed at which the belt body 23 is forced to rotate will also be faster/slower.

Although the endless belt body 23 in FIGS. 9, 10A, and 10B is of a type with the top surface 24 forming a slope, the endless belt body 23 in which the top surface 24 is concavely curved as shown in FIG. 8 can also be applied In this preferred embodiment, the important point is that no matter the top surface 24 of the ring-shaped belt body 23 forms an inclined surface or a concave arc surface, when the ring-shaped belt body 23 is displaced with the movable frame 17 in whole or in part, the main part of the top surface 24 is The elevation angle of the front end of the force-bearing area relative to the rear end will also change accordingly, and the greater/smaller the aforementioned elevation angle, the greater/smaller the force the user drives the endless belt 23 to rotate.

Figure 11 shows the basic flow of a control mode of the preferred embodiment. Simply put, in this control mode, the control unit 60 repeatedly compares the aforementioned current speed value and the aforementioned target speed value that may vary, and whenever the current speed value When it is lower/higher than the target speed value and the aforementioned resistance has not reached the lower limit/upper limit of the adjustable range, the resistance adjusting device 50 is controlled to reduce/increase the resistance, and then, when the current speed value is lower/higher than the target speed value and the aforementioned resistance When the lower limit/upper limit of the adjustable range has been reached, if possible, the aforementioned elevation angle adjusting device 90 is controlled to increase/decrease the aforementioned elevation angle. Figure Many procedures in Figure 11 are substantially the same as the corresponding procedures in the control mode of the previous preferred embodiment shown in Figure 7 (Note: Specifically, procedures 201 to 208 and procedures 212, 213 in Figure 11 correspond to Figures 201 to 208 respectively. Procedures 101 to 108 and procedures 110, 111 in 7), except for a small number of differences, will be specifically mentioned later, and the same parts will not be repeated.

From program 207 to program 209, it indicates that the current rotation speed of the endless belt body 23 is slower than the speed set by the user, and the rotation resistance of the endless belt body 23 has reached the lower limit of the adjustable range, the control unit 60 will further determine the ring Whether the aforementioned elevation angle of the belt body 23 has reached the upper limit of the adjustable range, if yes, enter the program 211; otherwise, enter the program 210. In step 210, the control unit 60 controls the elevation angle adjusting device 90 to increase the aforementioned elevation angle, and then the flow returns to the step 203 to re-determine whether there is a need to change the target speed value.

Symmetrically, entering from program 212 to program 214 indicates that the current rotation speed of the endless belt 23 is faster than the speed set by the user, and the rotation resistance of the endless belt 23 has reached the upper limit of the adjustable range, and the control unit 60 will further It is judged whether the aforementioned elevation angle of the endless belt body 23 has reached the lower limit of the adjustable range, and if so, the procedure 215 is entered; otherwise, the procedure 216 is entered. In step 215, the control unit 60 controls the elevation angle adjustment device 90 to reduce the aforementioned elevation angle, and then the flow returns to the step 203 to re-determine whether there is a need to change the target speed value.

In detail, the control unit 60 controls to increase the aforementioned elevation angle in the aforementioned program 210, and controls to reduce the aforementioned elevation angle in the aforementioned program 215. There are two different methods of implementation. The first method is that the control unit 60 executes the program 210/ In the program 215, the aforementioned elevation angle is continuously controlled to increase/decrease, so that the rotation speed of the endless belt body 23 increases/decreases due to the increase/decrease of the aforementioned component force of the user. The difference between the two is within a predetermined level), or the aforementioned elevation angle has reached the upper or lower limit of the adjustable range before entering the next program, that is, returning to program 203; the second method is that the control unit 60 is in In the program 210/the program 215, the elevation angle is only controlled to increase/decrease by a predetermined degree each time, and usually a small adjustment is performed, for example, the elevation angle is changed by 0.5 degrees, and then the program 203 is returned.

From the aforementioned program 209 to program 211, it means that the current rotation speed of the endless belt body 23 is still slower than the speed set by the user, but the rotation resistance of the endless belt body 23 has reached the lower limit of the adjustable range, and the endless belt body 23 The aforementioned elevation angle of 23 has also reached the upper limit of the adjustable range, that is to say, in principle, it is no longer possible to help speed up the movement by reducing resistance or increasing the elevation angle. At this time, the control unit 60 controls the display device 41 to display relevant information. Inform users of the possibility of movement speed The upper limit has been reached, and the control unit 60 will appropriately correct the target speed value according to the current speed value at this time, and accordingly correct the input devices 42, 43, 44 for the current user to set the upper limit of the exercise speed.

Symmetrically, from the aforementioned program 214 to the program 216, it means that the current rotation speed of the endless belt 23 is still faster than the speed set by the user, but the rotation resistance of the endless belt 23 has reached the upper limit of the adjustable range, and the ring The aforementioned elevation angle of the strip body 23 has also reached the lower limit of the adjustable range, that is, in principle, it is no longer possible to increase the resistance or reduce the elevation angle to assist in slowing down the movement speed. At this time, the control unit 60 controls the display device 41 Display related information to inform the user that the movement speed may have reached the lower limit, and the control unit 60 will appropriately correct the target speed value according to the current speed value at this time, and modify the input devices 42, 43, 44 for the current user to set the movement. The lower limit of speed.

It must be pointed out that in the program 203, the control unit 60 will not only determine whether there is a need to change the target speed value, but also whether it has received new input from the input devices 42, 43, 44 containing the aforementioned elevation angle. Indication signal, if the control unit 60 receives the instruction signal containing the aforementioned elevation angle, it first enters the procedure 204, the control unit 60 will control the elevation angle adjustment device 90 to make the aforementioned elevation angle meet the user’s instruction, and then enter the procedure 205; if there is neither If the target speed value needs to be changed, and the instruction signal containing the aforementioned elevation angle is not received, the program 205 is directly entered.

Preferably, during the operation of the aforementioned control mode, the control unit 60 is able to estimate when the aforementioned resistance is adjusted to the lower limit of the adjustable range and the aforementioned elevation angle is adjusted to the adjustable relationship based on the aforementioned resistance, elevation angle and the current speed value. The rotation speed of the endless belt 23 at the upper limit of the range (and the rotation speed of the endless belt 23 when the aforementioned resistance is adjusted to the upper limit of the adjustable range and the aforementioned elevation angle is adjusted to the lower limit of the adjustable range), according to The correction input device 42, 43, 44 allows the current user to set the upper limit (and lower limit) of the exercise speed. In this way, the user can grasp the upper limit (and lower limit) of the individual's possible movement speed, and the user experience is better.

From the above description of the process shown in FIG. 11, it can be seen that when the user is walking or running on the human-powered treadmill of the preferred embodiment operating in the aforementioned control mode, the user can set the aforementioned elevation angle and movement speed at any time (Including separate settings and combined settings), basically, by repeatedly comparing the current speed value with the target speed value, and controlling the resistance increase or decrease according to the comparison result, even if the aforementioned elevation angle or exercise speed set by the user changes during exercise, and / Or the user's force on the endless belt body 23 is changed, the rotation speed of the endless belt body 23 can still be kept close to or consistent with the use The speed set by the user; although in this control mode that meets the user’s indication of the speed of movement, if necessary, the increase or decrease of the aforementioned elevation angle will be controlled according to the aforementioned comparison result, but the aforementioned elevation angle can only be changed to achieve the user-set speed, Otherwise, the aforementioned elevation angle will not change automatically. That is to say, according to this control mode, the user can walk or run roughly at the set movement speed at the aforementioned elevation angle.

In addition to the aforementioned control mode, the human-powered treadmill of the preferred embodiment may also operate in other modes. For example, in another control mode that is available for selection, the control unit 60 neither actively controls the aforementioned elevation angle nor It will actively control the magnitude of the aforementioned resistance. Instead, the user can command the control unit 60 to adjust the aforementioned elevation angle and the aforementioned resistance through the input devices 42, 43, 44, that is, the user can maintain the aforementioned elevation angle and the aforementioned set resistance. You can walk or run while you are moving, and you can adjust the elevation angle and resistance at any time during the exercise.

In another alternative control mode, the user can only set the movement speed, and cannot set the aforementioned elevation angle or the aforementioned resistance. That is, the control unit 60 is completely aimed at achieving the movement speed set by the user, and automatically controls the aforementioned resistance and the aforementioned resistance. Make necessary adjustments to the elevation angle, including adjusting only one of the resistance and the elevation angle at the same time (or the same processing procedure), and adjusting both the elevation angle and the resistance at the same time (or the same processing procedure), such as controlling while reducing resistance Increase the elevation angle, or control to increase the resistance while reducing the elevation angle.

In the alternative control mode, the input devices 41, 42, 43 allow the user to select an exercise intensity from a plurality of exercise intensities. Each exercise intensity is preset with an elevation angle value and a speed value; when the control unit 60 receives After the indication signal specifying the exercise intensity is included, the elevation angle adjusting device 90 is controlled to make the elevation angle meet the elevation angle value preset by the exercise intensity, and the speed value preset by the exercise intensity is used as the target speed value. Thereby, the user can quickly increase or decrease the overall intensity of exercise in stages.

In order to improve the convenience of use, the human-powered treadmill of the present invention can also be designed with the following functions: when the control unit determines that no user is exercising on the treadmill (for example, the aforementioned speed signal is not received, or the speed signal is obtained The current speed value is 0 and lasts for a period of time), the resistance adjustment device is controlled to generate a maximum resistance, and/or a braking device (not shown) is controlled to generate a braking resistance. The aforementioned maximum resistance and/or the aforementioned braking resistance can allow The endless belt can stay still even if it is carrying a user, which means that when a user whose weight does not exceed expectations stands on the endless belt, the user's weight is on the top surface of the endless belt. The component force in the direction of motion is not It is sufficient to overcome the rotation resistance of the endless belt; then, when the control unit receives an instruction signal from the input device that indicates the start of exercise, it will control the display device to display a message to remind the user that the exercise is about to start, and control The resistance of the resistance adjusting device and/or the braking device is reduced after a predetermined time to the extent that the endless belt body can start to cyclically rotate because of carrying a user. The structure of the aforementioned braking device and the aforementioned control of braking resistance may be the same as one of the aforementioned various resistance adjusting devices. The user instructs the start of exercise through the input device, perhaps by pressing a physical or virtual button labeled "START" or "GO" to give instructions, or when the user completes the input of the set exercise speed or exercise program During operation (note: usually you need to press the "Confirm" or "OK" button at the end) to start the exercise as instructed. The aforementioned prompt message may be displayed in sequence "3", "2", "1" or countdown for three seconds in a similar manner. After the countdown is over, the aforementioned resistance is significantly reduced or reduced at an appropriate rate, so that the load carrying the user The endless belt body starts to rotate from a static state.

In addition, during exercise, when the control unit receives an instruction signal from the input device that instructs to stop the exercise, or when the running exercise program is over and the exercise should be stopped, it will control the resistance adjustment device and/or the braking device Appropriate resistance is generated to stop the loop belt from rotating in a short time. Among them, the user instructs to stop the exercise through the input device, possibly by pressing a button or switch labeled "PAUSE", "STOP" or "E-Stop" to give the instruction. Furthermore, the human-powered treadmill of the present invention may also provide a set of safety clip devices and inspection devices similar to the prior art (note: the safety clip devices in the prior art are usually applied to powered treadmills). The aforementioned safety The clamp device has a rope of appropriate length. One end of the rope is provided with a magnet or a latch, which is detachably attached to the aforementioned inspection device at the front end of the treadmill. The other end of the rope is provided with a clamp for clamping the user's shirt. When the user retreats excessively and pulls the front end of the rope away from the inspection device, the control unit that receives the corresponding signal will immediately control the resistance adjustment device and/or the braking device to generate appropriate resistance to stop the endless belt body from rotating.

In summary, the human-powered treadmill provided by the present invention allows the user to set the exercise speed according to personal needs, and assist the user to walk or run at the set speed. When the exercise speed changes, the user’s foot The angle of the moving surface (that is, the top surface of the ring-shaped belt body) can be kept unchanged, or as much as possible on the premise that reaching the set speed is the priority. The human-powered treadmill provided by the present invention (for example, the second preferred embodiment disclosed above) can also be used by users according to Individual needs to set the angle and speed of the exercise surface, and assist the user to walk or run at the set speed at the set angle

11‧‧‧Base

23‧‧‧Annular belt

24‧‧‧Top surface

25‧‧‧Main stress area

41‧‧‧Display device

42‧‧‧First input device

43‧‧‧Second input device

44‧‧‧Third input device

50‧‧‧Resistance adjustment device

60‧‧‧Control Unit

80‧‧‧Sensing device

U‧‧‧User

Claims (10)

A human-powered treadmill, comprising: a frame body; an endless belt body, arranged on the frame body in a cyclically rotatable manner, for a user to walk or run on its top surface, and can Because the user applies force from front to back to the top surface, it rotates cyclically; the predetermined section of the top surface of the endless belt forms a main stress area, and the top surface appears from front to top at least in the main stress area. Extend backward and downward; a sensing device that can sense the parameters corresponding to the rotation speed of the aforementioned endless belt and generate a corresponding speed signal; an input device for the user to input and set the aforementioned endless belt The rotation speed is indicated and a corresponding indication signal is generated; a resistance adjusting device can generate resistance to hinder the rotation of the endless belt body, and can be controlled by a first control signal to change the magnitude of the resistance; and a control unit , Can receive the speed signal from the sensing device to obtain a current speed value, receive the instruction signal from the input device to obtain a target speed value, and generate the first first for controlling the resistance adjusting device Control signal; at least a certain time in a control mode, the control unit will control the resistance adjustment device to reduce the resistance because the current speed value is lower than the target speed value, or because the current speed value is higher than the target speed The speed value controls the resistance adjustment device to increase the resistance. Such as the human-powered treadmill of claim 1, wherein during a period of time in the aforementioned control mode, the aforementioned control unit repeatedly compares the aforementioned current speed value with the aforementioned target speed value, and whenever the aforementioned current speed value is lower than the aforementioned target speed value and When the aforementioned resistance has not reached the lower limit of the adjustable range, the aforementioned resistance adjustment device is controlled to reduce the aforementioned resistance. On the contrary, whenever the aforementioned current speed value is higher than the aforementioned target speed value and the aforementioned resistance has not reached the upper limit of the adjustable range, the aforementioned resistance is controlled. The resistance adjustment device increases the aforementioned resistance. For example, the human-powered treadmill of claim 1, wherein the control unit estimates the rotation of the endless belt body when the resistance is adjusted to the lower limit of the adjustable range based on the relationship between the resistance and the current speed value. Speed, according to which the aforementioned input device can be modified for the current user Set the upper limit of the rotation speed of the aforementioned endless belt body. For example, the human-powered treadmill of claim 1, wherein the frame body includes a fixed frame and a movable frame that can be changed in position relative to the fixed frame; the ring-shaped belt body is at least partially set on the movable frame, and when the movable frame When the position relative to the aforementioned fixing frame changes, the elevation angle of the front end of the aforementioned main force-bearing area of the aforementioned ring-shaped belt body relative to the rear end will also change accordingly; an elevation adjustment device is arranged between the aforementioned fixing frame and the aforementioned movable frame, It can be controlled by a second control signal to drive the movable frame to change its position relative to the fixed frame; the control unit can generate the second control signal for controlling the elevation adjustment device. For example, the human-powered treadmill of claim 4, wherein at least a certain time in a control mode, the control unit controls the elevation angle adjustment device to increase the elevation angle because the current speed value is lower than the target speed value, or Because the current speed value is higher than the target speed value, the elevation angle adjusting device is controlled to reduce the elevation angle. Such as the human-powered treadmill of claim 4, wherein, in a control mode, if the aforementioned current speed value is lower than the aforementioned target speed value, and the aforementioned resistance has reached the lower limit of the adjustable range and the aforementioned elevation angle has not reached the upper limit of the adjustable range At this time, the aforementioned control unit controls the aforementioned elevation angle adjusting device to increase the aforementioned elevation angle. Such as the human-powered treadmill of claim 6, wherein the control unit does not actively control the elevation angle adjustment device before the resistance reaches the lower limit of the adjustable range. For example, the human-powered treadmill of claim 4, wherein the aforementioned input device allows the user to input an instruction containing the aforementioned elevation angle; when the aforementioned control unit receives the aforementioned instruction signal containing the aforementioned elevation angle, it will control the aforementioned elevation angle adjustment device to Make the aforementioned elevation angle meet the user's instruction. For example, the human-powered treadmill of claim 4, wherein the aforementioned input device allows the user to select one of the aforementioned exercise intensities from among a plurality of exercise intensities, and each of the aforementioned exercise intensities is preset with an elevation value and a speed value; when the aforementioned control unit receives After containing the aforementioned indicator signal specifying the aforementioned exercise intensity, the aforementioned elevation angle adjustment device is controlled so that the aforementioned elevation angle matches the aforementioned elevation angle value preset by the aforementioned exercise intensity, and the aforementioned speed value preset by the aforementioned exercise intensity is used as the aforementioned target speed value . For example, the human-powered treadmill of claim 4, wherein the aforementioned control unit estimates when the aforementioned resistance is adjusted to an adjustable value based on the aforementioned resistance, the aforementioned elevation angle, and the aforementioned change relationship of the aforementioned current speed value. The lower limit of the range and the rotation speed of the endless belt when the elevation angle is adjusted to the upper limit of the adjustable range can be corrected by the input device to allow the user to set the upper limit of the rotation speed of the endless belt.

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