JPH05317457A - Physical strength training device - Google Patents

Abstract

PURPOSE:To lower a cost in use by providing a physical strength training device main body, a moving generator and a secondary battery as an energy source of a load adjusting means and a power source of a control system and charging the secondary battery using the generator. CONSTITUTION:The number of pulses of an athlete A is measured and the magnitude of load is determined based on a difference between the measured number of pulses and a target value such as a prescribed target number of pulses. A load adjuster 4 adjusts the magnitude of load of the physical strength training device main body 1 to the determined magnitude of load. The physical strength training device main body 1, a moving generator and a secondary battery 8 as an energy source of the load adjuster 4 and a power source of a control system are provided. The training is carried out so that an electrical energy is generated by the generator 6. The secondary battery 8 is charged with an electric power generated by the generator 6. Thus, the physical strength training device can be realized at a low cost in use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a physical fitness training device.

[0002]

2. Description of the Related Art Heretofore, as a physical strength training apparatus of this type, there is a physical strength training apparatus for simply strengthening physical strength, mainly muscular strength, by simply rowing a stationary bicycle in a room. However, in this type of physical fitness training apparatus, the load is constant, and the person performing the training is often overloaded. Such an excessive load is not preferable in terms of exercise physiology.

Therefore, it is conceivable that the person performing the training exercises a moderate amount of exercise without difficulty. For example, the pulse rate of a person who performs physical fitness training is measured, the magnitude of the load is determined from the difference between the measured pulse rate and a target value such as a preset target pulse, and the magnitude of the load of the physical fitness training device is determined. You can change the height.

[0004]

However, in the case of the physical fitness training apparatus that changes the magnitude of the load as described above, the energy source and the control system of the negative adjusting means for changing the magnitude of the load of the main body of the physical fitness training apparatus are used. A power source is required, and when using commercial power, there is a problem that the cost of using the physical fitness training apparatus increases.

The present invention has been made in view of the above points, and an object of the present invention is to provide a physical fitness training apparatus which does not require a use cost.

[0006]

According to the present invention, in order to achieve the above object, a pulse measuring means for measuring the pulse rate of a person who performs physical training, and a pulse rate measured by the pulse measuring means are set in advance. In a physical fitness training apparatus including a calculation means for determining the magnitude of the load from the difference between the target pulse and other target values, and a load adjusting means for changing the magnitude of the load of the physical fitness training apparatus by the output of the calculation means. , A generator that works with the body training device,
An energy source of the load adjusting means and a secondary battery serving as a power source of the control system are provided, and the secondary battery is charged using the generator.

Further, in order to reduce the cost of the physical fitness training apparatus, it is preferable to use the generator itself as load adjusting means for increasing the load. Note that, for example, a motor may be used as the load adjusting means for reducing the load.

[0008]

The present invention is provided with a power generator that works with the body of the physical fitness training apparatus as described above, and a secondary battery that serves as an energy source for the load adjusting means and a power source for the control system. By charging the battery, training is performed to cause the generator to generate power, and the secondary battery is charged with the electric power generated by the generator to serve as an energy source for the load adjusting means of the physical fitness training device and a power supply for the control system. Use it to avoid cost of use.

Further, when the generator itself is used as the load adjusting means for increasing the load, it is not necessary to separately provide the load adjusting means for increasing the load, and the cost of the physical fitness training apparatus itself can be reduced.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIGS. In this embodiment, the physical fitness training apparatus main body 1
This is a exercise that uses a bicycle as an exercise that most effectively achieves its purpose in physical training for humans by continuing exercise with an intensity that allows the pulse (heartbeat) to continue around a preset value. It follows the theory of physiology.

FIG. 1 is a block diagram schematically showing the entire structure. A propulsion mechanism using human power similar to that of a normal bicycle, a propulsion mechanism using power of a motor 5, and a pulse rate of a person who performs physical training are measured. Pulse measuring means, the difference between the pulse rate measured by the pulse measuring means and the preset target pulse, the rate of increase of the pulse per time, the acceleration of the physical fitness training apparatus main body 1, and the immediately preceding physical fitness training apparatus main body 1 And a load adjusting means for changing the load level of the physical fitness training apparatus body 1 by the output of the calculating means. The secondary battery 8 is used as the power source for the entire control system, the measurement or signal detection system, and the power source for the motor 5, which is the power source of the physical fitness training apparatus body 1. It is needed.

First, a person who performs physical training (hereinafter,
A pulse measuring means for measuring the pulse A of the exerciser) will be described. The microphone 2 is attached to the chest, temples, and arms of the exerciser A where heartbeats are easily detected, so that the exerciser A's heartbeat can be measured. The exerciser A to which the microphone 2 for heartbeat is attached drives the physical fitness training apparatus main body 1 by human power to propel the physical fitness training apparatus main body 1. The heartbeat sound picked up by the microphone 2 is amplified through an amplifier having high sensitivity and low noise to measure the pulse.

Further, the pulse measuring means will be described in detail below. Although the method of transmitting the output of the pulse measuring means to the calculating means of the physical fitness training apparatus main body 1 described later is simply wired, it is superior in reliability, but a second power source is provided for measuring the pulse, and this power source and the pulse are provided. Separate the measurement circuit and transmitter from the other parts and let the exerciser A carry it.
Other circuit parts and the receiver are the physical fitness training apparatus main body 1
It is possible to increase the degree of freedom of the movement of the exerciser A and improve the comfort level of the exerciser A by attaching the same to the circuit board and connecting the two divided circuit parts with a wireless signal.

Here, a method of wirelessly transmitting the pulse data of the exerciser A to the calculation means of the physical fitness training apparatus main body 1 will be described. FIG. 6 is a block diagram showing a circuit configuration of a transmission unit 28 mounted on the exerciser A and a reception unit 29 mounted on the physical fitness training apparatus main body 1, and is picked up by the microphone 2 attached to the exerciser A. Figure 7 (a)
The pulse sound shown in (1) has a weak signal strength and contains a lot of noise, and it is difficult to distinguish the pulse sound from the noise.

Therefore, the preamplification circuit 10 temporarily amplifies the output of the microphone 2 and applies a narrow-band filter 11 that passes a frequency component that appears strongly when a general human pulse pulse is subjected to frequency analysis. A pulse sound is extracted as shown in b). Since the signal level is attenuated when passing through the narrow band filter 11, the main amplifier circuit 12
Amplify again. By comparing the output of the main amplifier circuit 12 with a predetermined value in the level comparison circuit 13,
It is converted into a rectangular pulse signal as shown in (c). The oscillation control circuit 14 operates with the output of the level comparison circuit 13, the oscillation circuit 15 converts the pulse signal into a predetermined pulse signal shown in FIG.

Reception of the transmitting antenna 16 and the receiving unit 29
Since it is only about 1 m away from the antenna 17, it is weak
It is possible to send and receive even with radio waves. And receive Ann
The received signal received by the tenor 17 is shown in Fig. 7 (e).
The waveform is buried in external noise. This reception
Signal is amplified by the preamplifier circuit 18, and then the oscillation frequency on the transmission side is
Narrow band amplifier circuit 1 that amplifies only the frequency band near the wave number
Further amplify at 9. Output of this narrow band amplification circuit 19
Is shown in FIG. Narrow band amplification circuit 19 output is detected
The pulse sound shown in FIG.
A detection output corresponding to is obtained. The output of the detection circuit 20
By comparing with a predetermined value in the bell comparison circuit 21,
The rectangular wave pulse shown in 7 (h) is obtained. Count this pulse
By inputting to the circuit 22, pulse per unit time
(X₁) Is obtained, and this pulse (x ₁) Using unit time
The increase rate (y) of the pulse of the
Calculated as the input of the function together with the load size (Pi)
Enter in the means.

As described above, the pulse is recorded by the microphone 2.
Other than the method of measuring the beat directly, it changes in response to the heartbeat.
To detect changes in electrical characteristics in parts of the human body
There is also a method of measuring the heartbeat by amplifying. Next, computing means
Will be described. First of all, the exerciser
Depending on the physical strength of A, the target pulse (x₀) As pulse
Set. Then, drive the physical training device body 1
Exerciser A's pulse (x₁) And target pulse
(X ₀) And the pulse (x) at the time of measurement₁)time
When the inter-differential value, that is, the rate of increase of the pulse (y) is calculated,
Also, from the above two values (x), (y)
The magnitude of the load on the mounting body 1 is calculated. This calculation means is
Find an appropriate load size frequently and with a small time interval
However, due to sudden changes in load
The amount of the load just before to prevent uncomfortable riding
(Pi) is the magnitude of the load (Pi₁)
It is one of the factors.

More specifically, the magnitude of the load (Pi) immediately before is changed to such an extent that the magnitude of the load is changed at a speed sufficiently higher than that when the heart rate of the human body suddenly changes and the riding comfort is not significantly deteriorated. The influence on the magnitude of the load (Pi ₁ ) may be determined. A factor that determines the uncomfortable riding comfort is a sudden change in the acceleration α of the physical fitness training apparatus body 1. Therefore, this acceleration α is also input to the function calculation for the calculation of the above-mentioned calculation means. The reason why the acceleration α is one factor of the function is that a sudden change in the acceleration α of the physical fitness training apparatus body 1 appears as uncomfortable physical fitness training for the exerciser A and lack of safety. Further, by using the acceleration α as a factor for the calculation of the calculation means, it is possible to prevent a shocking load from being applied to the motor 5 or the generator 6 whose operation is controlled by the output of the load adjusting device 4 which will be described later, and to shorten the life of the device. There is also an effect. When the above description is put together into an equation, the output of the computing means is Pi ₁ = f ₁ (x) + f ₂ (y) + f ₃ (α) + Pi.

The output of the calculation means is input to the load adjusting device 4, and the load adjusting device 4 adjusts the physical strength so that the heartbeat of the exerciser A is appropriate, that is, the intensity of exercise is appropriate for the exerciser A. The load of the training apparatus body 1 is adjusted. For example, even if the vehicle approaches an uphill slope during physical fitness training, as a result of the load adjustment, the amount of momentum required for the exerciser A to propel the physical fitness training apparatus body 1 does not differ from that in the case of traveling on a flat ground, and the propulsion by the motor 5 The force is added to the force for propelling the physical fitness training apparatus body 1 of the exerciser A to propel the physical fitness training apparatus body 1. Similarly, when going downhill, the physical fitness training apparatus main body 1 should normally run even if the exercise amount of the exerciser A is zero, but the load adjusting device 4 operates the generator 6 to cause the exerciser A to move. It demands propulsion and keeps the momentum constant.

Here, the adjustment of the propulsive force by the motor 5 is
For example, in the case of a DC motor, the time τ _i during which the power of the secondary battery 8 is applied to the motor 5 and the time τ ₀ during which the power of the secondary battery 8 is not applied to the motor 5 are alternately and frequently generated, and the time τ _{This is} done by changing the ratio of _i and τ ₀ . When an AC motor is used as the motor 5, the amplitude of the motor drive power source (not shown) is changed.

Further, a physical fitness training device using the generator 6 is provided.
To adjust the load on the storage unit 1, charge the secondary battery 8 with the generator 6.
Time to do τ_iAnd the time τ during which the generator 6 is idling₀
Alternating with high frequency, and time τ_i, Τ₀Change the ratio of
Do it. The above time τ _i, Τ₀Adjusting the ratio of is half
This is done by adjusting the time interval for conducting and disconnecting the conductor switch.

FIGS. 2 (a) and 2 (b) show how the load of the physical fitness training apparatus main body 1 proportionally increases / decreases in response to the output of the load adjusting apparatus 4, and at the same time when traveling on a flat road. Even if the load of the physical fitness training apparatus main body 1 itself changes during traveling uphill and the output of the load adjusting device 4 is the same, the generator 6 is operating during traveling on a flat road, but propelled by the motor 5 during traveling on an uphill. Represents the state of being combined with the power of the exerciser A to become the propulsive force of the physical fitness training apparatus body 1.

When the physical fitness training apparatus main body 1 of this embodiment is used as a practical vehicle (such as a two-wheeled vehicle), the switch SW is switched to the accelerator 9 side to cut off the load adjusting function and the exerciser A can arbitrarily set it. By the accelerator 9 which can be performed, the power supply to the motor 5 is changed to adjust the speed of the physical fitness training apparatus main body 1 as a practical vehicle.

The operation of this embodiment will be described with reference to the flow chart shown in FIG. First, select whether to use it as a practical vehicle or as a physical fitness training device. When used as a physical fitness training device, a regenerative deceleration load rate and a target pulse (x ₀ ) are set. The regenerative deceleration load rate allows the magnitude of the load to be changed according to the physical strength of the exerciser A even when traveling at the same speed. In addition to the load required to drive the physical fitness training apparatus body 1, the load generated by the generator 6 is added. Thus, even if the same speed is maintained, even if a stronger physical strength is required, that is, even if the output of the load adjusting device 4 is the same, the physical fitness training device 1
The load is set according to the physical strength of the exerciser A so that the load can be increased.

During physical training, the pulse (x ₁ ) is measured, and the pulse (x ₁ ) is differentiated with respect to the target pulse (x ₀ ) based on this pulse (x ₁ ) and the pulse (x ₁ ) is differentiated with respect to time. The rate of increase (y) is calculated. Then, when the pulse rate (x ₁ ) becomes larger than the target pulse rate (x ₀ ), that is, when the difference (x) becomes less than or equal to zero, an alarm is issued to notify that the human body is in danger. The acceleration α is calculated at the same time as the calculation of the rate of increase (y) of the pulse.

Next, it is determined whether or not the acceleration α is the acceleration of the human body, that is, the exerciser A, and it is determined whether or not the speed of the body training apparatus main body 1 is reduced. At this time, when the acceleration is due to the human body, the magnitude of the load is not changed in order to smooth the acceleration α and increase comfort. When the exerciser A does not promote the physical fitness training apparatus main body 1, that is, when the exerciser A is resting, the exerciser A is mainly
Adjust the load according to the pulse. For example, if the pulse rate (x ₁ ) of the exerciser A has reached the target pulse rate (x ₀ ), or if the rate of increase (y) of the pulse rate is extremely high, the legs of the exerciser A are in a resting state. Also, the physical fitness training apparatus main body 1 is propelled by the motor 5 to run the physical fitness training apparatus main body 1 without decelerating. On the contrary, when the pulse (x ₁ ) is small, the physical training apparatus main body 1 decelerates when the exerciser A's foot is resting, and this deceleration urges the exerciser A to move his foot silently. ..

As shown in FIGS. 2 (a) and 2 (b), the load adjusting device 4 changes as to the magnitude of the load on the body 1 of the physical fitness training apparatus.
The output obtained by the load adjusting device 4 is a function that changes in proportion to the difference (x) between the measured pulse (x ₁ ) and the target pulse (x ₀ ) in relation to the pulse. Is related by. This is like the start of physical training, if the pulse (x ₁₎ is far from the target pulse (x _0), the load is heavy, exceeds the target pulse (x ₀₎ when approaching the target pulse (x ₀₎ This is because the load is lightened so that the work does not occur.

On the contrary, the rate of increase (y) of the pulse rate is related by a function that increases in inverse proportion, which means that the exerciser A makes a sudden exercise, which is unfavorable for physical fitness training. This is to prevent it. In other words, this is to increase the physical strength while keeping the stress on the human body soft. Therefore, when the exerciser A makes a rapid exercise despite the physical fitness training apparatus meeting the above purpose, for example, when the pulse (x ₁ ) exceeds the target pulse (x ₀ ) as described above, Deal with it by issuing an alarm. When the exerciser A is rowing to accelerate or prevent deceleration, the amount of exercise is calculated and stored together with the pulse at that time. This record is useful for looking back on the predominance of physical strength of the exerciser A.

The exercise amount of the exerciser A is calculated as follows. For example, as shown in FIGS. 4A and 4B, the pedal 3
A first stopper 33a is attached via a pressure-sensitive element 34 to an arm 32 that connects 0 to a front wheel gear 31 that is rotated when an exerciser A steps on the pedal 30.
A cushioning member 35 is provided between the arm 32 and the pressure sensitive element 34 so that the pressure sensitive element 34 is not damaged by the force applied at. A second stopper 33b is provided on the front wheel gear 31 on the side opposite to the first stopper 33a to prevent the arm 32 from moving in the direction opposite to the direction in which the pedal 30 is depressed. In this apparatus, the amount of exercise of the exerciser A is calculated based on the force detected by the pressure sensitive element 34, the rotation angle of the arm 32, and the length of the arm 32. The front wheel gear 31 and the rear wheel gear 50 are connected by a chain 36.

Alternatively, as shown in FIG. 5, a push-down gear 37 and a push-up gear 38 for pushing down the width of the chain 36 are meshed with both sides of the chain 36, and both gears 37, 38 are engaged.
Is attached to the support 39 slidably up and down, and the gear 3
A push-down spring 40 is provided between the two 7, 38 and both ends of the support 39.
And the push-up spring 41 are housed, and the pressure sensor 42 is arranged so that one end of the push-down spring 40 contacts the push-down spring 40 side.
Some are equipped with. Then, the amplifier circuit 44 for amplifying the output of the pressure sensor 42, the smoothing circuit 45 for smoothing the output of the amplifier circuit 44, the rotation speed counting circuit 47 for counting the rotation speed of the push-down gear 37, the rotation speed counting circuit 47, and the output of the smoothing circuit 45 are multiplied. And a momentum calculation section 43 including a multiplication circuit 46 for calculating the momentum. The output of this momentum calculation unit 43 is recorded in the recording unit 48. In this case, the force that pushes down the push-down gear 37 is detected by the pressure detection sensor 42, and the momentum is calculated from this force and the rotation speed of the push-down gear 37. FIG. 5B is for detecting the force applied by the exerciser A by the force that pushes the chain 36 apart, and the configuration and operation are substantially the same as in FIG.
In FIG. 5A, the force applied by the exerciser A is replaced by the force detected by the pressure sensor 42, but in the case of the push-down gear 37, it can be detected by the amount of contraction of the push-down spring 40.

When the exerciser A's pulse rate (x ₁ ) approaches the target pulse rate (x ₀ ), power is supplied to the motor 5 in order to reduce the exercise amount of the exerciser A.
As shown in (a), the gear 51 meshes with the teeth 25 attached to the inside of the wheel 24, whereby the force of the motor 5 is transmitted to the wheel 24, and the force of the motor 5 causes the wheel 24 to rotate. The force exerted by the exerciser A on the pedal 30 is added.

Next, the operation of varying the weight of the load shown in FIG. 1 will be described. The case where the increase rate (y) of the received pulse per unit time and the acceleration α of the exerciser A are the same and only the pulse (x ₁ ) is small and the case where the pulse is large will be described. When the pulse rate (x ₁ ) is small as shown on the left side of FIG. 8A, the input signal of the load adjusting device 4 which has been function-calculated becomes a high level, and conversely is large as shown on the right side of FIG. 8A. Sometimes the input signal of the load adjusting device 4 becomes low level. Then, when the signal level of the input signal of the load adjusting device 4 is equal to or higher than a predetermined value, the electromagnetic clutch 23 is supplied with power, the electromagnetic clutch 23 is engaged so as to drive the generator 6, and the power is supplied to the motor 5. Be stopped. On the contrary, when the signal level of the input signal of the load adjusting device 4 is equal to or lower than the predetermined value, the power supply to the electromagnetic clutch 23 is stopped and the motor 5 is supplied with power.

Although not shown, the above operation is performed by an electric circuit incorporated in the load adjusting device 4. Therefore, FIG.
On the left side of (a), the generator 6 is driven, so the load is heavy for the physical fitness training apparatus 1.
When it is on the right side of (a), it acts so as to increase the amount of exercise of the physical fitness training apparatus main body 1. In other words, in the latter case, the electromagnetic clutch 23 is disengaged, the generator 6 is stopped, and conversely, power is supplied to the motor 5, so that the physical fitness training apparatus main body 1 is also propelled by the motor 5, so The load on the physical fitness training apparatus main body 1 viewed from the person A is reduced. The operation of the load adjusting device 4 is performed by the secondary battery 8
As shown in FIG. 8 (e), the pulse (x ₁ )
Is low, the exerciser A is in a charged state while pushing the physical fitness training apparatus body 1 with a strong force, and conversely, when the pulse (x ₁ ) increases, the burden on the exerciser A is lightened and the secondary The battery 8 is discharged.

As described above, the power is supplied to the motor 5 depending on the output of the load adjusting device 4, or conversely, the power is supplied to the electromagnetic clutch 23 so that the electromagnetic clutch 23 meshes. Figure 9 (a), (b)
Shown in. The above is a description of how the load adjusting device 4 operates depending on the amount of the pulse (x ₁ ), that is, whether the difference from the set value of the target pulse (x ₀ ) is large or small. Similarly for (y), the load adjusting device 4 operates so that the exercise amount of the exerciser A decreases when the rate of increase (y) of the pulse increases.

The physical fitness training apparatus of this embodiment is characterized in that it can be run outdoors so that physical training can be enjoyed and that physical training can be performed while watching the scenery.
By raising the wheels 24 to make them idle, and changing the magnitude of the load using only the generator 6 as a load,
It is possible to achieve the same effect as when traveling outdoors.

As an example, FIG. 10 shows a case where the exerciser A depresses the pedal 30 and turns the wheels 24 to perform training while the apparatus is kept stationary, for example. At this time, the load of the physical fitness training device 1 is the wheel 24.
It is determined by the mechanism that charges the secondary battery 8 with the output of the generator 6 rotated through the gear 52 meshing with the inner tooth 25 of the. The weight of the load is determined by the charging operation duty setting unit 26 determined by the output signal level of the load adjusting device 4 shown in FIG. That is, when the charging operation duty is small, the number of idle states of the generator 6 increases and the load becomes light. By changing the charging operation duty in this way, it is possible to realize a load according to the physical strength and pulse of the exerciser A, and it is possible to perform physical strength training similar to that in the case of actual running even in a stationary state.

[0037]

As described above, the present invention provides a pulse measuring means for measuring the pulse rate of a person who performs physical fitness training, a pulse rate measured by the pulse measuring means, and a target value such as a preset target pulse. In the physical fitness training apparatus, the physical fitness training apparatus is provided with a calculating means for determining the magnitude of the load from the difference of the Since the generator and the secondary battery serving as the energy source of the load adjusting means and the power source of the control system are provided and the secondary battery is charged by using the generator, the generator can generate power by training. The secondary battery can be charged with the electric power generated by this generator, and can be used as an energy source for the load adjusting means of the physical fitness training device and a power source for the control system. It is not applied.

Further, when the generator itself is used as the load adjusting means for increasing the load, it is not necessary to separately provide the load adjusting means for increasing the load, and the cost of the physical fitness training apparatus itself can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the present invention.

2 (a) and 2 (b) are explanatory views showing a variable state of a load magnitude, respectively, in the same as above.

FIG. 3 is a flowchart showing an operation of the same.

4 (a) and 4 (b) are an explanatory view showing a propulsion mechanism and an enlarged view of a main part of FIG. 4 (a).

5A and 5B are explanatory diagrams showing a method for measuring the amount of exercise of an exerciser, and an explanatory diagram showing another example of the same purpose.

FIG. 6 is a circuit configuration diagram showing a configuration of pulse measuring means.

FIG. 7 is an operation explanatory diagram of pulse measuring means.

FIG. 8 is an explanatory diagram of the operation of pulse measuring means.

FIG. 9 is an operation explanatory view of the load adjusting means.

FIG. 10 is an explanatory diagram of a case where the physical fitness training apparatus according to the above is used in a stationary state.

[Explanation of symbols]

 A Exerciser 1 Physical training device body 2 Microphone 4 Load adjustment device 5 Motor 6 Generator 8 Secondary battery 24 Wheel 27 Charger

Claims (3)

[Claims] 1. A pulse measuring means for measuring the pulse rate of a person who performs physical fitness training, and the magnitude of the load from the difference between the pulse rate measured by the pulse measuring means and a target value such as a preset target pulse. In a physical fitness training apparatus comprising a calculating means for determining and a load adjusting means for changing the magnitude of the load of the physical training apparatus body by the output of the calculating means, a generator interlocking with the main body of the physical training apparatus and a load adjusting means A physical fitness training apparatus comprising: an energy source and a secondary battery serving as a power source of a control system, the secondary battery being charged using the generator. 2. The physical fitness training apparatus according to claim 1, wherein the generator itself is used as load adjusting means for increasing a load. 3. The physical fitness training apparatus according to claim 1, wherein the motor is used as load adjusting means for reducing the load.