JP3127503B2 - shoes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shoe having a gas tank provided inside a shoe to support a foot.

[0002]

2. Description of the Related Art Recently, shoes provided with a gas tank whose pressure can be adjusted by an air pump have been developed. This shoe is called a pump shoe, and a gas tank is provided in a sole portion, an ankle portion, and the like, and air is injected into the gas tank to protect the foot from impact.

However, in the conventional pump shoes, since the pressure of the gas tank provided inside the shoes is adjusted by the user, it is difficult to determine the pressure and it is difficult to adjust the air pressure. Therefore, the present applicant provided a pressure gauge for measuring the pressure of the gas tank, devised and applied for a pump shoe capable of easily adjusting the air pressure and also storing the exercise result (Japanese Utility Model Application No. 2-291525).

[0004]

By the way, since shoes are used outdoors, the pressure gauge must have sufficient waterproofness. However, if the pressure gauge is hermetically sealed for waterproofing, there is a difference between the pressure inside the pressure gauge and the atmospheric pressure, so that accurate pressure measurement cannot be performed.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and has as its object to accurately measure the pressure of a gas tank provided inside a shoe even if the pressure gauge has a waterproof structure.

[0006]

According to a first aspect of the present invention, there is provided a gas tank (6, 7) provided inside a shoe, and an electronic circuit for measuring a pressure in the gas tank. Device case (1
And 0a), which includes a switch mechanism for flowing the device case inside to the outside atmospheric pressure attached to the device case (measurement start switch K2), said switch device
The switch is used to start measuring the pressure in the gas tank.
H (measurement start switch K2) . According to a second aspect of the present invention, there is provided a shoe according to the first aspect.
Measurement of the number of steps based on a change in the pressure in the gas tank.
Pedometer to measure the pressure in the gas tank
Mode and the number of steps to display the measurement result of
Measure the number of steps and display the measurement result of the number of steps
Pedometer mode
Display control means for displaying the result.
I do.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 will be described. 1 is an external view of a shoe, FIG. 2 is a view showing a position of a gas tank disposed therein, FIG. 3 is a sectional view taken along line XX of FIG. 2, and FIG. 4 is a sectional view taken along line YY of FIG. .

As shown in FIG. 1, this shoe forms a shoe body and covers a foot, a toe 2 for holding the upper, and a shoe sole 3
And a cover 4 attached to the outside of the heel of the cap 1. The inside of the cover part 4 is described later with reference to FIG.
A pressure measuring device 10 (not shown in FIG. 1) is disposed, and the display content of the pressure measuring device 10 can be seen through the transparent portion 5.

As shown in FIG. 2, a gas tank 6 is provided on the sole of the toe inside the upper 1 and a gas tank 7 for holding the heel is provided on the ankle.
As shown in FIG. 3, the gas tank 6 is provided on the entire shoe sole 3, and serves as a cushion when walking.

[0010] As shown in FIG.
Is provided. Air pipes 9a, 9b are inside the insole 8
Is provided, and the gas tank 6 and the gas tank 7 are communicated. Therefore, by injecting an appropriate amount of air into the gas tanks 6, 7, the shock received from the sole 3 can be reduced by the gas tank 6, and the heel can be supported by the gas tank 7. In addition, when injecting air into the gas tanks 6 and 7,
An air pump is connected to a valve (not shown), and air is injected from the air pump.

FIG. 5 is an external view of the pressure measuring device 10 disposed inside the cover portion 4. As shown in FIG. 1, a display unit 11 for displaying pressure, etc., a power switch K1, a measurement start switch K2, and an air pipe 12 connected to the gas tanks 6, 7 are provided on a device case 10a of the pressure measuring device 10. Are provided. In this embodiment, the cover 4 and the pressure measuring device 10 are mounted on only one of the shoes.

FIG. 6 is a sectional view showing the internal structure of the equipment case 10a in the pressure measuring device 10. A surface glass 10b is provided in the device case 10a, and a display unit 11 formed of a liquid crystal display device is disposed inside the surface glass 10b. On the back side of the display unit 11, a circuit board 13 is arranged.
The display unit 11 and the circuit board 13 are electrically connected by a connector 14. On the back side of the circuit board 13, an LSI 15 containing an electronic circuit is mounted. A movable contact 13a and a fixed contact 13b are provided on the front side of the circuit board 13, and when the measurement start switch K2 is operated, the movable contact 13a is moved by the shaft 16 to come into contact with the fixed contact 13b. It is configured.

A pressure sensor case 17 communicating with the air pipe 12 is provided inside the equipment case 10a. A pressure sensor 18 is arranged inside the pressure sensor case 17 so as to seal the air pipe 12. And
The pressure sensor case 17 is provided with a vent hole 17a, and the inside of the pressure sensor case and the inside of the device case 10a communicate with each other through the vent hole 17a. The pressure sensor 18 is electrically connected to the circuit board 13 by a lead wire 19. Further, a battery 20 is disposed inside the device case 10a, and supplies power to the LSI 15.

In this case, the inside of the equipment case 10a is shown in FIG.
As shown in the figure, the atmospheric pressure is applied through a key hole 10c that movably holds the measurement start switch K2. FIG. 7 is a sectional view showing details of the key hole 10c.

FIG. 7A shows a state where the measurement start switch K2 is held in the key hole 10c. As shown in the figure, a waterproof O (O) ring 21 is fitted to the shaft portion 16 of the measurement start switch K2, the key hole 10c is sealed by the O ring 21, and the device case 10a is waterproof. It has a structure.

FIG. 7B shows that the shaft 16 is moved by operating the measurement start switch K2 and the O-ring 21 is moved to the position 2 before the operation.
FIG. 7C is a diagram showing a state in which the keyhole 10c has been moved from a position 1a to a position 21b after the operation, and FIG. As shown in both figures, a notch 10d is formed in the inner wall of the key hole 10c, so that when the O-ring 21 moves to the position 21b after the operation, the inside of the device case 10a passes through the notch 10d. Atmospheric pressure comes in.

That is, only when the measurement start switch K2 is operated, the inside of the device case 10a communicates with the outside,
Atmospheric pressure is also applied inside the pressure sensor case 17. Therefore, the pressure sensor case 17 is provided on one surface of the pressure sensor 18.
, And the pressure of the gas tanks 6 and 7 is applied to the other surface via the air pipe 12.
8, the pressure in the gas tanks 6, 7 can be accurately measured.

Next, the circuit configuration of the pressure measuring device 10 will be described with reference to FIG. The pressure measuring device 10 has a monitor mode and a pedometer mode. In the monitor mode, the pressure in the gas tanks 6 and 7 is measured. In the pedometer mode, the number of steps is measured by a pressure change in the gas tanks 6 and 7. Measure.

In FIG. 1, the pressure sensor 18 is not shown, but has four resistance elements arranged in a bridge type. The control circuit 22 also controls the pressure sensor 1 based on a microprogram stored in advance in a built-in ROM (not shown).
8 is a central processing unit for performing various processes such as pressure measurement in the gas tanks 6 and 7 and data storage. This control circuit 2
2, in monitor mode outputs the monitor mode signal l ₀ shown in FIG. 11 to the drive circuit 23, the pedometer mode outputs the pedometer mode signal l ₁ to the drive circuit 23 and the amplifier circuit 24.

The driving circuit 23 drives the pressure sensor 18, receives a voltage from the terminal A, and supplies a driving voltage to the terminal B. In this case, the drive voltage supplied to the terminal B is always a constant voltage, and the pressure sensor 18 measures the pressure in the gas tanks 6 and 7 via the air pipe 12 and outputs the measured voltage corresponding to the pressure to the terminal C. , D. The measurement voltage output from the pressure sensor 18 is supplied to the amplifier circuit 24.

The amplifying circuit 24 amplifies the voltage measured by the pressure sensor 18 and converts the A / D (analog-digital) conversion circuit 2
5 and the counting circuit 26. Note that the amplification circuit 2
4 is equal to the drive signal l output from the control circuit 22.
Varies according to ₁ . The A / D conversion circuit 25 A / D converts the measured voltage output from the amplification circuit 24 and outputs the measured voltage to the control circuit 22.

When the output voltage output from the amplifier circuit 24 is equal to or higher than a predetermined level, the counting circuit section 26 counts this as the number of steps, and outputs the counted step number data to the control circuit 22. The SW (switch) input unit 27 includes the power switch K1 and the measurement start switch K2 shown in FIG. 5, and outputs an operation signal corresponding to the switch operation to the control circuit 2.
Output to 2. The display circuit 28 corresponds to the display unit 1 shown in FIG.
1 is displayed on the display unit 11 in accordance with the display data output from the control circuit 22.

FIG. 9 is a circuit diagram showing details of the drive circuit 23. A control circuit 2 is connected to one input terminal of the AND gate AND.
With pedometer mode signal l ₁ is inputted from 2, to the other input terminal 11 from the timing circuit (not shown)
Duty pulse l ₂ is input. The output of the AND gate AND is input to one input terminal of the OR gate OR. The monitor mode signal ₁₀ is input to the other input terminal of the OR gate OR. The output of the OR gate OR is a sensor drive signal l ₃ shown in FIG. 11, is input to the control input terminal of the operational amplifier OP5.

The operational amplifier OP5 supplies a drive voltage to the pressure sensor 18, and a reference voltage Vref2 is input to a (+) terminal. This reference voltage Vref2 is the rated voltage V
This is a voltage obtained by dividing cc by the resistors R8 and R9 and connecting the resistors R8 and R9. (-) Of operational amplifier OP5
The terminal is connected to the terminal A of the pressure sensor 18, and the output of the operational amplifier OP5 is connected to the terminal B of the pressure sensor 18.
That is, only when the sensor drive signal l ₃ is at the “H” level,
The driving voltage is output from the operational amplifier OP5, and the pressure sensor 18 operates.

FIG. 10 is a circuit diagram showing details of the amplifier circuit 24. The pressure sensor 1 is connected to the (+) terminal of the operational amplifier OP1.
8 terminal C is connected. The output of the operational amplifier OP1 is fed back to the (-) terminal via the resistor R2 and is connected to the resistor R4. The terminal D of the pressure sensor 18 is connected to the (+) terminal of the operational amplifier OP2. The output of the operational amplifier OP2 is fed back to the (-) terminal via the resistor R3 and is connected to the resistor R6.

A resistor R1a, a resistor R1b and a transistor TR are connected in parallel between the (-) terminal of the operational amplifier OP1 and the (-) terminal of the operational amplifier OP2. Transistor TR is the resistance R1b each - one that connects between the terminals, the gate is opened only when the pedometer mode signal l ₁ is at the "H" level, the operational amplifier OP1 () (-) terminal and the operational amplifier OP2 ( And-) terminals, a resistor R1a and a resistor R1b are connected in parallel. The other end of the resistor R4 is an operational amplifier O
Connected to the (-) terminal of P3 and resistor R5. Resistance R6
Is connected to the (+) terminal of the operational amplifier OP3.

A resistor R7 is connected to the (+) terminal of the operational amplifier OP3.
, A reference voltage Vref1 is input. Operational amplifier OP
The output of the A / D conversion circuit 2 is fed back to the (-) terminal via a resistor R5, and is output as an amplified voltage Vout.
5 and the counting circuit 26.

Next, the operation of the above embodiment will be described. In the above embodiment, when the pressure measuring device 10 is not used,
The measurement start switch K2 is held at the position shown in FIG. In this state, the pressing portion 1 of the measurement start switch K2
The key hole 10c is hermetically sealed by the O-ring 21 provided in the device 6, and the device case 10a is hermetically sealed from the atmosphere to have a waterproof structure.

When the pressure measuring device 10 is used, the measurement start switch K2 provided on the equipment case 10a is operated. As a result, the O-ring 21 moves to the position 21b after the operation as shown in FIG.
Atmospheric pressure is applied to the inside of the device case 10a via the line d. Therefore, the pressure sensor case 17 is
a, the atmospheric pressure is also applied to the pressure sensor 18 in the pressure sensor case 17, and the pressure in the gas tanks 6, 7 can be measured through the air pipe 12. Become.

When the measurement start switch K2 is operated, the movable contact 13a comes into contact with the fixed contact 13b to turn on the switch, and the SW input unit 27 outputs an operation signal to the control circuit 22. Thereby, control circuit 22 performs an operation according to the mode.

[0031] (1) When the monitor mode monitor mode, the control circuit 22 as shown in FIG. 11, and outputs a monitor mode signal l _0, which is between the "H" level of the pressing operation of the switch K2 to the drive circuit 23, The pedometer mode signal l ₁ at the “L” level is output to the drive circuit 23 and the amplifier circuit 24. That is, the monitor mode signal l ₀ of "H" level to the other input terminal of the driving circuit 23 an OR gate OR is input.

Therefore, "H" is always output from the OR gate OR.
The level sensor drive signal l ₃ is output, and the operational amplifier O
It is input to the control input terminal of P5. At this time, the AND gate AND is closed, and the AND gate AND
The pulse l ₂ is not output. As a result, the operational amplifier OP
5 constantly outputs the drive voltage to the terminal B of the pressure sensor 18,
The pressure sensor 18 is driven continuously.

Further, since the pedometer mode signal l ₁ is "L" level in the amplifier circuit 24, the transistor TR is closed. Therefore, only the resistor R1a is connected between the (−) terminal of the operational amplifier OP1 and the (−) terminal of the operational amplifier OP2. In this case, the amplification factors of the operational amplifiers OP1 and OP2 are {(R2 + R3) / R1a} +1, which is higher than the case where the resistor R1b is connected.

Therefore, the measured voltages input from the terminals C and D of the pressure sensor 18 are amplified by the operational amplifiers OP1 and OP2, further amplified by the operational amplifier OP3, and are amplified as an amplified voltage Vout by the A / D conversion circuit 25 and the counting circuit section. 26. The A / D conversion circuit 25 A / D converts the output voltage from the amplification circuit 24 and outputs it to the control circuit 22. Based on this, the control circuit 22 generates pressure data and outputs it to the display circuit. Thereby, the display unit 1
1 indicates the pressure of the gas tanks 6,7. (2) If the pedometer mode pedometer mode, the control circuit 22 as shown in FIG. 11, "H" pedometer mode signal l ₁ the drive circuit of the level 2
3 and the amplifier circuit 24, and outputs the “L” level monitor mode signal ₁₀ to the drive circuit 23. That is, in the drive circuit 23, "H" is applied to one input terminal of the AND gate AND.
The level pedometer mode signal l ₁ is input. As a result, the AND gate AND opens, and the AND gate AND
Duty Pulse l ₂ is output and input to the OR gate OR from.

[0035] Therefore, as shown in FIG. 11 from the OR gate OR, intermittent sensor drive signal l ₃ corresponding to the Duty Pulse l ₂ is output and input to the control input terminal of the operational amplifier OP5. As a result, the operational amplifier OP5 outputs the drive voltage intermittently to the terminals A and B of the pressure sensor 18, so that the pressure sensor 18 is driven intermittently. in this case,
Power consumption by the drive circuit 23 is reduced.

In the amplifying circuit 24, the transistor TR is open because the pedometer mode signal ₁₁ is at "H" level. Therefore, the resistor R1a and the resistor R1b are connected in parallel between the (-) terminal of the operational amplifier OP1 and the (-) terminal of the operational amplifier OP2. In this case, the operational amplifier OP
1 and the amplification factor of the operational amplifier OP2 are ｛(R2 + R3)
/ R1a + R1b｝ +1, and the amplification factor is smaller than when the resistor R1b is not connected.

Accordingly, the measurement voltages input from the terminals C and D of the pressure sensor 18 are amplified by the operational amplifiers OP1 and OP2, further amplified by the operational amplifier OP3, and are amplified as an amplified voltage Vout by the A / D conversion circuit 25 and the counting circuit section. 26.

When the output voltage of the pressure sensor 18 output from the amplifier circuit 24, that is, the pressure data is equal to or higher than a certain level, the counting circuit 26 counts this as one step of walking and controls the counted step number data. Output to the circuit 22. The control circuit 22 outputs display data based on the step count data to the display circuit 28, and the display unit 11 displays the step count data.

Although air is injected into the gas tanks 6 and 7 in the above embodiment, what is injected is not limited to air, but may be a gas other than air, such as carbon dioxide, or a liquid. In addition, the present invention can be applied to various shoes such as athletic shoes, leather shoes, ski shoes, golf shoes, and various boots, in addition to ordinary shoes.

[0040]

According to the first aspect of the present invention, an equipment cable is provided.
The switches that make up the switch mechanism attached to the switch
Switch to allow external atmospheric pressure to flow into the equipment case.
To start measuring the pressure in the gas tank.
Therefore, even if the pressure gauge has a waterproof structure , the pressure of the gas tank provided inside the shoe can be accurately measured. Claim 2
According to the description, the monitor mode is controlled by the display control means.
And pedometer mode respectively.
It becomes possible.

[Brief description of the drawings]

FIG. 1 is an external view of a shoe to which the present invention is applied.

FIG. 2 is an external view showing an internal structure.

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a sectional view taken along line YY of FIG. 2;

FIG. 5 is an external view of the pressure measuring device 10.

FIG. 6 is a diagram showing an internal structure of the pressure measuring device 10.

FIG. 7 is a sectional view showing details of an internal structure.

FIG. 8 is a diagram showing a circuit configuration of the pressure measuring device 10.

FIG. 9 is a circuit diagram showing details of a drive circuit 23;

FIG. 10 is a circuit diagram showing details of the amplifier circuit 24;

FIG. 11 is a diagram showing each signal.

[Explanation of symbols]

 6,7 Gas tank 10a Equipment case K2 Measurement start switch (switch mechanism)

Claims (2)

(57) [Claims] 1. A gas tank provided inside a shoe, an electronic circuit housing an electronic circuit for measuring the pressure in the gas tank and sealed therein, and a gas tank attached to the equipment case and inside the equipment case. A switch mechanism for allowing external atmospheric pressure to flow .
The switch mechanism starts measuring the pressure in the gas tank.
A shoe , comprising a switch for starting . 2. The method according to claim 2, wherein a change in pressure in said gas tank is based on a change in pressure.
A pedometer for measuring the number of steps by measuring the pressure in the gas tank and monitoring the measurement result.
Measurement of steps by the monitor mode displayed on the screen and the pedometer
With the pedometer mode to display the measurement result of this step count
Display to display the result corresponding to one of the switching
The shoe according to claim 1 , further comprising control means .