JPH02154773A - Rope pulling practicing machine - Google Patents

Abstract

PURPOSE:To practice rope pulling in the same sense as that in the case when an opponent actually exists by winding and supplying a rope according to the difference between set rope pulling force and actual rope pulling force when the difference is generated. CONSTITUTION:A winch drum 2 to wind and supply a rope pulling rope 1 is rotation-driven by a rotation driving device 4. Further, in a pattern input device 9, the rope pulling force is set using an arbitrary characteristic pattern. Further, in a load cell 10, the actual rope pulling force and the supplying quantity of the rope 1 are detected. Further, in a controller 8, the driving force of the device 4 is feedback-controlled according to the set input from the pattern input device 9 and the actually detected rope pulling force. Further, the rope pulling force and the supplying quantity of the rope 1 are displayed by a display device. As the result, the rope pulling can be practiced in the same sense as that in the case when the opponent actually exists.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to an improvement in a tug-of-war training machine.

(Prior Art) As a tug-of-war training machine, there is a training machine that pulls or lets out a rope in response to the traction force of the tug-of-war.

(Problem to be solved by the invention) However, this involves winding up a rope using a certain force on a drum, and the sensation of tug-of-war is far from that of an actual tug-of-war competition.

Further, in order to enhance tug-of-war practice, it is preferable to be able to collect various data such as tug-of-war force, stroke, or time.

An object of the present invention is to provide a tug-of-war training machine that allows you to practice tug-of-war as if you were actually with an opponent.

(Suggestions for solving the problem) Therefore, the present invention provides a winch drum for winding and letting out a tug-of-war rope, a rotary drive device for the winch drum, and a pattern input for setting the rope tug-of-war force with an arbitrary characteristic pattern. a device, a means for detecting the actual tug-of-war force and the amount of payout of the rope, and feedback control of the driving force of the rotary drive *a according to the setting input from the pattern input device and the actually detected tug-of-war force. and a display device for displaying the tug-of-war force and payout amount of the rope.

(Function) When a tug-of-war pattern is input using the pattern input device, the rope is pulled in a towing pattern corresponding to the tug-of-war pattern.
At the same time, the traction force generated in response to the actual tug-of-war action is fed back, and the tug-of-war force is controlled accordingly. For this reason, the actual tug of war 8
If there is a difference between the two forces, the rope will be wound up or let out accordingly, allowing you to practice tug of war with the appropriate experience at all times.

(Example) Embodiments of the present invention will be described based on the drawings.

As shown in FIG. 1, a winch drum 2 that winds up and lets out a rope 1 is attached to a frame 3. A hydraulic motor 4 is provided as a drive source for driving the winch drum 2, and transmits motor rotation to the winch drum 2 via a gear 5.

The hydraulic motor 4 receives pressure oil from the hydraulic unit 6 via the servo valve 7, and its rotational speed and rotational torque are controlled. The operation of the servo valve 7 is controlled by a control device 8, which will be described later.

The control device 8 receives signals from a pattern input device 9 that sets a tug-of-war pattern, and also receives signals from a load cell 10 that detects the traction force of the rope 1 and a rotary encoder 11 that detects the traction speed (amount of traction). input. Note that the rotary encoder 11 detects the amount of rotation of the winch drum 2, and the load cell 10 detects the tug-of-war reaction force applied to the winch drum 2.

The control device 8 drives the winch and ram 2 according to the input tug-of-war pattern, and feedback-controls this driving force according to the actual tug-of-war force applied to the rope 1. It is configured as follows.

The tug-of-war pattern input device 9 sets a periodically fluctuating tug-of-war force pattern, which is converted into a digital signal by the A/D converter 15a and input (Fi
n) Then, first, load cell 1 which is the actual tug-of-war force
The detection signal from 0 is fed back (F bell an) via the A/D converter 15b, and addition and subtraction are performed with this (ΔF-Fin-F man)*this correction signal Δ
F is adjusted by the sensitivity adjustment volume 201 (V i
n=number ΔF), this is a signal (V out
= ds man/dt) is added or subtracted (ΔV = V
in-V out), the control signal ΔV is output to the servo valve 7 via the D/A converter 15d, and controls its opening degree.

The control signal Δ■ corresponds to a comparison between the periodically varying tug-of-war force set by the pattern input device 9, the tug-of-war force that actually pulls the rope 1, and the tug-of-war speed, and changes the opening degree of the servo valve 7. Accordingly, pressure oil from the hydraulic unit 6 is supplied to the hydraulic pressure level 4, thereby controlling the driving force of the winch drum 2 that winds up the row 11.

The tug-of-war force feedback signal (F mackerel) is input to the data processing device 16 as tug-of-war data, and furthermore, the external input device r1117 sets a tug-of-war cover turn according to the data value, and this is input from the pattern input device 9. A/D converter 1 via switching circuit 18 instead of the signal
5a.

Further, +1 is displayed on the actual tug-of-war force (Fman) applied to the rope 1 and the tug-of-war stroke amount S theory 1 on the panel 19 as a display device. Incidentally, the elapsed time from the start of the tug of war is displayed on the display panel 19 based on the output from the timer 21.

The structure is as described above, and the operation will be explained as follows.
First, the pattern input device 9 allows you to freely set the maximum value (Fmax), minimum value (Fmin), fluctuation period (T), and fluctuation waveform of the tug-of-war force applied to the rope 1, and the set tug-of-war pattern It is input to the control device 8.

Based on this, the opening degree of the servo valve 7 is controlled, hydraulic oil is supplied to the hydraulic motor 4, and the winch drum 2 is driven in the 88-take direction.

On the other hand, the tug-of-war force of the person who actually pulls the rope 1 against the winding force of the rope 1 is detected by the load cell 10, and this is fed back to the control device 8.

Therefore, the control device 8 controls the servo valve 7 so that when the set value inputted in the pattern is larger than the actual tug-of-war force, the lobe 1 is reeled in according to the difference, and conversely when it is smaller, the lobe 1 is let out. The driving force of the hydraulic motor 4 is controlled via.

Therefore, when the tug-of-war force of the tug-of-war practitioner is weaker than the set value, lobe 1 will be pulled in according to the strength, and if it is strong, lobe 1 can be pulled out.
When the set value and the tug-of-war force become too tight, balance is maintained in that state. Moreover, the driving force of the winch drum 2 changes periodically according to the set pattern, and the traction force of the lobe 1 is strengthened or weakened, so you can practice tug of war with the same experience as when there is an actual opponent. can do.

When the difference in power is large, for example, if the practitioner lacks strength,
By reducing the setting value of the tug-of-war force, the training aircraft can practice with a weaker opponent, and by changing the setting value to a larger value, it can practice with a stronger opponent, and in this way, it is possible to freely choose an opponent.

Incidentally, by operating the sensitivity adjustment volume 20, the sensitivity of the setting pattern can also be freely adjusted. In addition, the display panel 19 can display the tug-of-war force, stroke amount, tug-of-war time, etc. that change from moment to moment during tug-of-war practice. The processing device 16 can store data on each tug force during tug of war practice, data for each team, etc. as numerical values. Furthermore, based on these tug-of-war data, an optimal tug-of-war pattern can be set using the external input device 17 for the players to practice with.

(Effects of the Invention) As described above, according to the present invention, there is provided a winch drum for winding and unwinding a tug-of-war robe, a rotary drive device for the winch drum, and a pattern input device for setting rope tug-of-war force in an arbitrary characteristic pattern. and a means for detecting the actual tug-of-war force and the amount of payout of the a-b, and feedback control of the driving force of the rotary drive device according to the setting input from the pattern input device and the actually detected tug-of-war force. and a display device that displays the tug-of-war force of the robe and the &19 appearance, so that when there is a difference between the set tug-of-war force and the actual tug-of-war force, the robe is twisted accordingly. As a result, you can always practice column counting with an appropriate feeling, and
Data from these tugs of war is displayed, so you can numerically understand the effectiveness of your practice.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall configuration diagram, and FIG. 2 is a block diagram of a control device. DESCRIPTION OF SYMBOLS 1... Lobe, 2... Winch drum, 4... Hydraulic motor, 7... Servo valve, 8... Control device, 9...
...Pattern input device, 10...Load cell, 11.
...Low reencoder, 19...Display 1ita. f41 C

Claims (1)

[Claims] A winch drum for winding and letting out a tug-of-war rope, a rotary drive device for the winch drum, a pattern input device for setting a rope tug-of-war force in an arbitrary characteristic pattern, and a means for detecting the actual tug-of-war force and amount of let-out of the rope. a means for feedback-controlling the driving force of the rotary drive device according to setting input from the pattern input device and the tug-of-war force actually detected; and a display device for displaying the tug-of-war force and the amount of payout of the rope. A tug-of-war training machine characterized by being equipped with.