JPS6014876A - Training apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a training device.

Currently, there is a microcomputer on the market that inputs personal physical conditions (age, weight, gender, pulse rate, etc.) based on its instructions, and calculates the optimal load value and its load by processing these values. Various so-called bicycle ergometers have been provided as training devices, which calculate the lower control pulse rate and continuously manage the user's continuous exercise based on these values.

One of these is equipped with a flywheel made from gray pig iron, a rotation sensor for detecting the number of revolutions of the flywheel, and a strain gauge for detecting torque. There is a training device equipped with a load device that controls the current supplied to the electromagnetic brake based on the correlation with several outputs to obtain a constant torque.

In addition, as another training device, the relationship between the above-mentioned flywheel rotational speed, torque, and control current value is calculated in advance by a computer, etc., and stored in a storage device, and instructions are written based on the program. There is a device that obtains a constant torque by determining the current to be passed through the braking coil based on the rotational speed of the brake and the target braking force.

Of these two devices, since the former is equipped with a mechanical torque detection means, it is complicated to make adjustments before starting use or as the device changes over time. Furthermore, the latter requires complicated calculations to be performed in advance, and requires a separate storage device to store the results of the parenthesis calculations as data. All of these devices are training devices configured to obtain a constant torque by electrically controlling the load means in a complicated manner.

Furthermore, since both have an inner rotor and an actor-stator structure, there are disadvantages in that the outer stator in which the excitation coil is disposed becomes large and the inner rotor becomes hot.

Therefore, the present invention has been made in view of the above-mentioned drawbacks, and focuses on the mechanical structure rather than the electrical structure of the load means, and provides a load device having an eddy current brake that can obtain a substantially constant torque with its structure itself. The purpose is to provide a training device with

The purpose is to input the physical conditions of the user, calculate the upper and lower limits of the pulse rate for continuous exercise, use these as the training range setting range, and also calculate the pulse rate for changes in pulse rate during continuous exercise. In a training device that maintains a user's pulse rate within the set range by increasing or decreasing a load, an input means for inputting physical conditions (age, gender, load value, etc.) to the device; A pulse sensor that measures the pulse rate and a control upper limit and a lower control limit pulse rate are calculated according to a program based on the input of the physical conditions, and the output from the pulse sensor during continuous exercise is set within the set range. Consists of an arithmetic control circuit that increases or decreases the load in case of violation so that the output of the pulse sensor stays within the set range, and a steel material with a carbon content of 0.12% or less and a silicon content of 0.35% or less. The outer rotor and several excitation coils are arranged radially.
This can be achieved by comprising an inner stator, a characteristic signal generating circuit that generates the square root 46 in response to the output of the arithmetic control circuit 611, and a load device based on a current source.

In addition, the outer rotor has a concentric structure made of two types of materials, and the inner peripheral loaf material is a structural carbon steel tube (STK).
It is preferable to insert a steel pipe that satisfies the above-mentioned content selected from (or STKM) into the outer peripheral rotor made of cast iron material.

In addition, if the outer circumferential portion is simply intended to impart a fly-proof effect to the inner circumferential portion, it can be made from non-ferrous parts of cement plates.

By configuring as described above, it is possible to provide a training device equipped with a load device having an eddy current brake that can obtain a constant torque without any complicated electrical control. In addition, the training device according to the configuration of the present invention can control the same load with a lower current than other conventional devices under the same load conditions, so it generates less heat even when used continuously. The device can be downsized.

The present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1A is a diagram illustrating a training device 10 according to the present invention, including a portion of a loading device.

FIG. 2 shows the front panel of the input/output box shown in FIG. Attach it to your ear and operate the keys according to the training operation procedure on the front/lower monel shown in Figure 2. Once the pulse sensor is installed, next (press the reset key) select the desired training program, that is, whether some of the training in Nominelle is weight loss training, and then select the physical conditions (age, gender, training). value) using the middle numeric keypad.

Furthermore, a target training time and a target amount of exercise consumption can be input and set as desired. Then, by pressing the start button, placing the feet on the Idal 2, and continuously bending and stretching the feet while gripping the handle, the training is started. The driving force of the pedal is transmitted from the gear on the pedal shaft to the transmission 4 via a chain or the like, and after being suitably changed in speed, it is transmitted to the outer rotor 5, 6 of a load device using an eddy current brake via a belt or the like. has been communicated to. Therefore, the user can perform training according to the load value, target training time, and/or target exercise consumption input and set from the front panel of FIG. 2.

Next, a calculation control method for a training device according to the present invention will be explained with reference to FIGS. 1B and 2.

The training device of the present invention inputs the upper limit pulse rate, the lower limit pulse rate, and the load using the age, gender, and load value input through the front nominal panel of the input/output box shown in FIG. 2, and the training program selection button. The load application value is determined from the initial load value at the initial load value until 6 minutes have elapsed from the start of training, which is set as the warm-up end point.

The data input from the input/output box is stored in the RAM inside the microcomputer, and a general formula (male: 2.ZQ- 0,1X-
P';Female: ztt;-o,'zsu Dougaku) will be called into the CUP, and the maximum pulse rate will be calculated based on the input age, and then some training or weight loss. Based on the selection instructions, the management upper limit pulse rate and the management lower limit pulse rate [in the case of general training, the maximum pulse rate - evening S:
' (upper limit) and -65 (lower limit); in the case of weight loss training, maximum pulse rate -70 (upper limit) and -1 (lower limit)] are calculated.

As a different method, the training device of the present invention is equipped with a program capable of measuring physical fitness, so that all of the above data can be obtained by measuring physical fitness in advance.

The method of obtaining the data by measuring physical strength is to measure the pulse rate of the user in a resting state as the first data, measure the steady pulse rate under the first load as the second data, and calculate the statistical accuracy. The 29th load value is determined by comparing it with the first reference value which is the steady pulse rate under the first load on the gender least squares average load-pulse rate line, and the steady pulse rate under the second load is determined. is measured as the sixth data and compared with the second standard value, which is the steady pulse rate under the second load on the gender least squares average load-pulse rate line determined by statistics, to determine the sixth load value. , when the steady pulse rate under the 6th load value is measured as the 4th data, and the upper limit of the measured value is limited to the exercise safe pulse rate calculated by age and gender, and the 4th data is obtained. If the exercise safe pulse rate is reached before the fourth data is obtained, a load-pulse rate approximation straight line is obtained based on the first to sixth data. In addition, the upper limit of the straight line is limited by the maximum pulse rate calculated by age and gender, and the value obtained by subtracting 9 jo from the maximum pulse rate is set as the upper limit of the control pulse rate.The value obtained by subtracting 6 da beats is set as the lower limit of the control pulse rate. Used for general training. In this case, a value corresponding to the lower limit of the management pulse rate is selected as the optimal load value. In weight loss training, for example, if an obese person exercises for the purpose of maintaining and improving physical strength as well as for the purpose of losing weight, subtracting 7D beats from the maximum pulse rate as the upper limit of the management pulse rate. The value obtained by subtracting 80 beats is used as the control pulse lower limit.

As in the case of general training, the optimum load value is the load value corresponding to the lower limit of the control pulse rate.

In this case, if the output from the pulse sensor reaches the load control condition (control pulse range) during warming up, load control is prioritized from that point on.

As a subsequent control method, ■ If the lower limit of pulse rate control is reached within a certain period of time from the start, reduce the load by an appropriate amount. ■ If the pulse rate exceeds the pulse control upper limit after a certain period of time has elapsed since the start, immediately reduce the load by an appropriate amount. The same judgment is repeated using a certain period of time after the lowering as the judgment point. ■ After a certain period of time has elapsed since the start, if the pulse rate has not reached the lower limit of pulse control, increase the 9th load by an appropriate amount. Repeat the same judgment after a certain period of time has passed.

The user's pulse rate is controlled to be maintained within the control pulse rate range while repeating the above load increase/decrease. This training continues until the target training time set at the time of input or the amount of exercise determined by the calculation described later reaches the target amount of exercise consumption.

To calculate calorie consumption, measure the rib load value for 30 seconds from the start of training as a Zumbling value, and calculate the calorie using the general formula: E = load intensity (@X O, 014
(K" body) finish.

The training operation of the present invention described above is shown in a flowchart in FIG.

Next, a load device used in the training device of the present invention will be explained. The load device of the present invention is constituted by an eddy current brake.

The present inventors focused on the specific resistance (Ω, teeth) and magnetic permeability (Le 0) of the factors of the flywheel of an eddy current brake, created flywheels from various materials, and calculated the braking force and excitation current of the excitation coil. The results are shown in Figure 4. In the figure, ■ is pure iron, ■ is cast steel,
■ is the brake car excitation current characteristic of a flywheel made from conventional gray cast iron. At this time, the dull rotation speed of the load device was 50 rpm. As can be easily understood from the figure, pure iron flywheels provide the highest load with a small current value, followed by cast steel flywheels, and flywheels whose performance is incomparably worse than these two. is the conventionally used flywheel made of gray cast iron.

Therefore, it can be determined that pure iron or cast steel is preferable for the flywheel material.

Furthermore, the present inventors investigated the relationship between the components of the iron materials used and the braking characteristics, and found that the content of Si (silicon) is related to the specific resistance, and the smaller the amount, the lower the specific resistance. It was found that the carbon content is related to the magnetic permeability, and that the smaller the amount, the larger the fabricated magnetic permeability. ff5'j that analyzed the components of each flywheel: %1. ' is shown in Table 1.

Table 1 Pure iron Cast tato'1 Cast iron Mouse alj Iron: Bare 0
．． 00ro 0.16 0.18 6.04 Silicon 0
．． 060.160,55 2.1 Manganese 0.20
0,53 1.5U O,65 phosphorus 0.04 0.0
4 0. tJ61 Sulfur 0.04 0. Mouth 4 0. [
J [J88 Therefore, the present inventors have found that when constructing an eddy current brake for a load device, by specifying the composition of the flywheel material, it is possible to obtain a large load with excellent characteristics and a small current. I came to the conclusion that it can be done.

According to this conclusion, if the flywheel is constructed using pure iron, which has the lowest carbon and silicon content among iron materials, it will be possible to obtain the best characteristics and the maximum loading value at a small current. can.

However, pure iron is difficult to obtain on the market and is expensive, so the inventors manufactured a flywheel using cast steel, which has properties similar to those of pure iron. I was able to obtain the characteristics. In this case, considering the characteristics of the flywheel and its ease of availability on the market, a structural carbon steel tube that is easily available in the market is used as the inner peripheral member facing the excitation coil, and the outer peripheral side is used to create a flywheel effect. In order to achieve this, it has been found that even if the outer peripheral side member is manufactured from gray cast iron, almost the same results can be obtained as when the entire member is manufactured from cast steel. However, in this case, STK or S
JIS only sets upper limits for the composition of structural carbon steel pipes called TKM, so when using structural carbon steel pipes, select from among the conical pipes manufactured as standard products. The droplets must be selected to meet the desired carbon and silicon content.

As an example, the outer flywheel made of conventional gray cast iron has a concentric double structure, and the circumference @1 facing the excitation coil is changed from S'rK -5 [] to carbon and silicon content (C = 0.12 %, 5i = 0.35 or less)
The eddy current brake was constructed by selecting the one that satisfied the conditions. The characteristics of this thin current brake having a flywheel made of double groove construction and gray cast iron are shown in FIGS. 6 to 11.

In addition to S'I', you can also select from the Ifil tubes of S T K h, i.

6th, 1 and 7 are the W-I characteristics of the eddy current brakes of the load devices according to the conventional and the present invention.

When using the flywheel according to the present invention at the same applied current and speed as shown in FIG. 4, a larger angular load can be obtained, and the load at each rotation speed can be There is little difference between the values, and the curve can be approximated by a squared curve. In FIG. 6, the curve 4UrlI+1zItlr is different from the other curves.

FIGS. 8 and 9 show the torque-rotational speed characteristics of the eddy current brakes of the load devices according to the prior art and the present invention. Assuming that the practical rotational speed range of the pedal of a load device using an eddy current brake is 40 to 60 rPm, the fluctuation range of the current value and torque is shown in Table 2. As can be easily understood, the flywheel configuration according to the present invention, when the current value of the excitation coil is kept constant, has significantly less fluctuation in the practical rotational speed range of the flywheel than the conventional example. It is also possible to obtain a high-output dog.

FIGS. 10 and 11 show torque-excitation current characteristics based on each rotation speed. The shaded area in the figure is a diagram showing the variation of rotation speed and torque within the practical rotation speed.
If a constant load is applied to 1F, compensate by further controlling the current value.
Assuming that the point is 38.8 kg-cm or less,
The shaded area shown in FIG. 11 is negligible when compared with the shaded area shown in FIG. 1U.

This means that the eddy current brake using the flywheel of the present invention can be put to practical use without correction due to the external g It is possible to obtain a synergistic torque specification in IJ and 1 circles.

As part of the device using the whirlpool l;j jjjL brake according to the present invention is shown in FIG. --5
An inner circumferential side I-zoo 6 made of Shinzo charcoal 6-g 4-tube (STK-51J) is fitted inside. - Six excitation coils 8 are arranged radially on the inner stator Z so as to face the rotor 6 on the inner circumferential side indicated in iiJ, and the excitation coils 8 are connected in series with each other, and their supply Both ends of the wire are connected to a constant current drive circuit. Electrical configuration of the load device As shown in Figure 1B, a power source 22 that supplies current to the eddy current brake 21, a current control circuit 23 located between them that controls the supplied current, and a circuit 26 provided externally. Load value (W) specified by the numeric keypad of the input/output box 11
, and a characteristic signal generating circuit 24 which supplies the square root value thereof as an instruction value.

Instructions from the input/output box 11 to the circuit 24 are supplied via a DA converter in the case of digital signals, or directly in the case of analog signals.

Therefore, the configuration of the present invention is capable of accurately controlling the eddy current brake of a load device using a simple control method in response to a signal from an arithmetic processing circuit. Further, this load device can obtain constant torque characteristics that are significantly superior to conventional ones, and its control characteristics can be approximately approximated by a square function. Also, compared to conventional training equipment, it is possible to obtain a high load with a low current, so
It generates little heat, so there is no need to consider heat radiation, and it can be used for long periods of time with peace of mind, and it can be made smaller. In this case, the present invention particularly provides an inner stator,
By using an outer rotor, the structure is such that the heating element rotates, so the heat is naturally radiated because the heat generation itself is small even without any heat radiating means than the convection +fC due to the rotation of the rotor.

In the above configuration, the outer rotor is made of non-ferrous metal for the purpose of simply imparting a flywheel effect to the inner rotor.
It can also be made of a material, such as concrete.

Furthermore, the present invention will not be described in detail.
By inputting the output of a torque detecting means such as a strain meter (4f) into a microcomputer and performing calculation correction, it is possible to provide an accurate ergometer having the features of the present invention.

In addition, when expanding the practical rotational speed range, it is preferable to perform rotating sand correction at tc5.

[Brief explanation of the drawing]

FIG. 1A is a diagram showing the training device of the present invention, FIG. 1B is a block diagram of the microcomputer and load device, FIG. 2 is a diagram of the front panel of the input/output box, and FIG. It is a flowchart of the operation of the training device of the invention, and FIGS. 4 to 11 are diagrams showing various characteristics of the loading device. (Symbols in the diagram) i: Sattle, 2: Pedal, 3: Handle, 4:
Transmission, 5: Outer rotor, 6: Inner rotor,
7: Stator, 8: Excitation coil, 9: Constant current drive circuit, 1o: Constant current drive circuit, 11: Input/output box, 1
2: Pulse sensor agent Patent attorney (8107) Kiyotaka Sasamoto (and 3 others)
1A Figure 20

Claims (1)

[Claims] 1) Calculates upper and lower management limits of the user's pulse rate by inputting the user's physical conditions, sets these as the training range setting range, and measures the pulse rate during continuous exercise. , a training device that maintains the pulse rate within the set range by increasing or decreasing the load with respect to the transition, the device having an input for inputting physical conditions (age, gender, load value, etc.) means, a pulse sensor for measuring pulse rate;
Based on the input of the physical conditions, the upper limit and lower limit pulse rate are calculated according to the program, and this is used as the set range.If the output from the pulse sensor during continuous exercise exceeds the set range, the load is increased or decreased. and an inner stator in which magnetic coils with a carbon content of 0.12% or less and a silicon content of 0.65 or less are arranged radially. 2) a training device comprising: a characteristic No. 46 generator circuit for generating a square root signal thereof in response to the output of the arithmetic control circuit; and a load device comprising a current source for an exciting coil; The Akku rotor has a concentric structure made of two unique steel materials, and the inner rotor material is structural carbon steel pipe (STK or ST
3) The training device according to claim 1, characterized in that the training device is a steel pipe that satisfies the above-mentioned yield quantity selected from KM), and is inserted into an outer peripheral rotor made of cast iron material. The outer periphery of the two types of concentric rotors is made of a non-ferrous material (concrete), and the inner periphery is given a Fuller l8Z eel effect.Claims: Training attire as described in Section 2. 4) The training device according to any one of the above claims, wherein the load device further includes a torque detection means such as a strain ratio, and the output signal of the characteristic signal generation circuit is used as an output signal.