JPH0236530Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a jumping value measuring device for measuring physical fitness.

[Prior art and its problems] In general, as this type of measuring device, for example,
Japanese Patent Application No. 52-147125 discloses a device in which a touch plate is installed vertically, with which the finger of the person to be measured comes into contact when jumping. Since this touch plate must be installed on a wall or fixed with a support stand, it cannot be used in places without walls, and it is inconvenient to carry the heavy support stand and touch plate to the measurement location. If the person leaves the wall without jumping vertically, there is a risk that the measured jump value will be lower than the actual jump value.

In addition, as disclosed in Japanese Patent Application Laid-Open No. 55-31952 as a device that can measure even in places without walls,
There is a device in which a person jumps on an exercise board set on the floor and measures the time spent in the air to calculate the jump value, but the thickness of the platform under the exercise board causes a sense of anxiety when landing. Also, it requires a commercial power source (AC 100V) in addition to a cord to connect the exercise board and display, making it difficult to use outdoors and being expensive.

In addition, a vertical jump measuring device has been proposed in Japanese Patent Application Laid-Open No. 59-197269, which involves installing a rootstock, an iron arm, a jumping board, etc. over 1 meter in length on the floor, and placing a movable ring on the rootstock. The indicator is made horizontally movable along the wire, and the person being measured attaches one end of the string with one end fixed to the moving ring and jumps, and the horizontal movement of the indicator is taken as a measured value by the scale of the tape measure. Therefore, it is a large, heavy, and expensive device that cannot be used easily and has restrictions on where it can be used.In addition, it requires at least two people: a measurer and a person to be measured. In other words, if the person being measured stands on the springboard and fixes the tension string to his or her body and then sets the index at the 0 point of the tape measure, the tension of the string will be broken and no one else will be able to score 0 points. There is a problem in that a measurer is required to align with the index, which makes handling inconvenient, and the index moves quickly during jumping, which tends to cause errors in index movement.

[Purpose of the invention] The present invention was made in view of the above circumstances, and the purpose is to provide a jump value measuring device that does not require a commercial power source, is small, lightweight, easy to use, and easy to measure. It is something to do.

[Structure of the invention] The structure of the invention to achieve the above object is to spin a pulley wrapped in a wire material such as a string or tape, the end of which is fixed to the floor surface on which the subject jumps, in a housing. A tension roller is pressed against the pulley by a spring biasing force, a winding plate is pivotally supported outside the housing via a one-way clutch, and a rotation shaft of the winding plate and the pulley shaft are connected to each other by a rotation transmission member. A sensor for detecting the rotation of the pulley is installed adjacent to the pulley or the pulley shaft, the housing is attached and fixed to the person to be measured, and the jump value is calculated by counting the output signal of the sensor. and means for displaying the jump value are provided on the housing.

[Embodiment of the invention] Hereinafter, an embodiment of the invention will be described based on the drawings.

Reference numeral 1 denotes a housing, which includes a band 2 to be wrapped around the belt or waist of the person to be measured. A thread-wound pulley 4 is rotatably mounted between support plates 3 in the housing 1. A wire material 5 such as a thread or tape is wound around the outer periphery of the thread-wound pulley 4, and one end of the wire material 5 is fixed to the thread-wound pulley 4.
The other end is led out of the housing 1 through a hole (not shown) formed in the housing 1 and fixed to a weight 6 made of rubber or the like, and is fixed to the floor surface on which the person to be measured jumps via the weight 6. ing. The wound wire material 5 is moved around a tension roller 9 by the spring biasing force of a spring 8, which has one end fixed to the outside of the support plate 3 and the other end fixed to a roller shaft 7 that can slide in the direction of the thread winding pulley 4. It is pressed. A second gear 12, which is a rotation transmission member, is connected to a first gear 11, which is a rotation transmission member, which rotates together with the pulley shaft 10 of the thread-wound pulley 4.
A rotating shaft 13 is connected via a one-way clutch 14 to a winding plate 15 of the wire material 5 disposed outside the housing 1.

Further, a large number of slits 17 are formed at equal intervals on the circumference of the side plate 16 of the thread-wound pulley 4. Then, an optical sensor 18 having a pair of light emitting elements and light receiving elements disposed facing each other so as to sandwich the side plate 16 in which the slits 17 are formed detects the number of slits 17 and detects the number of rotations of the thread-wound pulley 4.

As shown in FIG. 3, the optical sensor 18 generates a pulse each time the side plate 16 of the thread-wound pulley 4 rotates and the slit 17 passes, and this pulse is counted by a counting circuit 19. Then, the arithmetic circuit 20 calculates the length of the drawn-out filament 5 from this counted value and the diameter of the thread-winding pulley 4, etc., and displays it on a digital display 22 such as a liquid crystal via a display drive circuit 21. Note that 23 is a power source such as a dry battery that supplies voltage to each circuit, and each circuit and power source 23 are all built into the housing 1. Also, 24 is the power supply 23
This is a switch that doubles as ON/OFF and clearing the counting circuit 19.

The use of the device of the present invention constructed as described above will be explained.

First, one end of the wire material 5 is fixed to a weight 6 placed on the floor, and while the wire material 5 is being fed out, the band 2 of the housing 1 is wrapped around the waist of the person to be measured and fixed. Then, the person to be measured stands on the weight material 6, turns the winding plate 15 to tension the wire material 5, and turns on the switch 24. In this case, the rotation of the winding plate 15 is controlled via the one-way clutch 14 from the rotating shaft 13 to the second gear 12 to the first gear 11.
→ Pulley shaft 10 → Transmitted to thread winding pulley 4.
Then, voltage is supplied to each circuit and the count value of the counting circuit 19 is cleared.

When the person to be measured jumps, since one end of the wire material 5 is fixed to the floor surface by the weight material 6, the thread winding pulley 4 rotates according to the height of the jump, and the wire material 5 is paid out. . The side plate 16 rotates together with the thread-wound pulley 4, and the optical sensor 18 detects the passing slit 17 and generates a pulse. The counting circuit 19 counts these pulses, and the arithmetic circuit 20 calculates the length of the drawn wire material 5 from this maximum count value and the diameter of the thread-wound pulley 4, etc., and displays it on the display 22.
Incidentally, the wire material 5 let out by the jump remains unchanged after landing and is wound up by the winding plate 15 after measurement. Moreover, the bobbin pulley 4 rapidly rotates due to the jump, and the filament material 5 is paid out, but the bobbin pulley 4
A tension roller 9 presses the thread-wound pulley 4 with a spring biasing force to prevent the wire material 5 from unraveling due to inertia caused by rapid rotation. Further, since the rotation of the winding plate 15 is transmitted to the thread winding pulley 4 via the one-way clutch 14, the winding plate 15 rotates idly in the opposite direction to the winding direction. Therefore, the wire material 5 is tensed during the measurement, so that accurate measurement can be performed.
In addition, a switch 24 and a winding plate 1 are attached to the housing 1.
5. Since it is equipped with a display 22, the person to be measured can operate it at hand and check the displayed value.

In addition, the structure is such that the wire material 5 is fed out from the thread-wound pulley 4 in the housing 1 which is attached and fixed to the subject, and each circuit is an integrated circuit 25 or a liquid crystal display 22 with low power consumption is used. Since a small dry cell battery can be used as the power source 23, the housing 1 containing these batteries can be made small and lightweight, weighing less than 300g.
Even if you wear it on your waist, it won't interfere with your jumping. Furthermore, the weight material 6 only needs to have a weight that can secure the wire material 5 during jumping, for example, about several hundred grams, and the entire device of the present invention can be less than 1 kg, making it lightweight and easy to carry. .

[Other Embodiments] Although one embodiment of the present invention has been described in detail above, it can be modified as appropriate within the scope of the gist of the present invention. For example, the switch 24 may be provided separately for turning on the power supply 23 and for clearing the counting circuit 19.

[Effects of the invention] As detailed above, according to the invention, a pulley wrapped with a wire material such as a string or tape whose end is fixed to the floor surface on which the subject jumps is mounted in a housing. A tension roller is pressed against this pulley by a spring biasing force, a winding plate is pivotally supported outside the housing via a one-way clutch, and a rotation transmission member is connected between the rotating shaft of the winding plate and the pulley shaft. a sensor for detecting the rotation of the pulley is provided adjacent to the pulley or the pulley shaft, the housing is attached and fixed to the person to be measured, and means for calculating the jump value by counting the output signal of the sensor. By providing a means for displaying the jump value in the housing, the entire device can be made small and lightweight, making it easy to use, and the jump value can be easily measured by one person without getting in the way even when attached to the person being measured. A value measuring device can be provided.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a sectional view of the main part, and FIG. 3 is a block diagram. 1... Housing, 4... Thread winding pulley, 5...
... wire material, 9 ... tension roller, 10 ... pulley shaft, 11, 12 ... gear (rotation transmission member),
14... One-way clutch, 15... Winding plate, 18... Optical sensor (sensor), 19... Counting circuit, 20... Arithmetic circuit, 22... Display device.

Claims (1)

[Scope of utility model registration request] A string whose end is fixed to the floor surface on which the person to be measured jumps,
A pulley wrapped with a wire material such as tape is axially mounted in a housing, a tension roller is pressed against the pulley by a spring biasing force, and a winding plate is axially supported outside the housing via a one-way clutch, The rotating shaft of the winding plate and the pulley shaft are connected via a rotation transmission member, a sensor for detecting the rotation of the pulley is provided adjacent to the pulley or the pulley shaft, and the housing is attached and fixed to the subject. A jump value measuring device characterized in that the housing is provided with means for calculating a jump value by counting output signals of the sensor and means for displaying the jump value.