JPH09299103A - Air pump and check valve for ventilation in shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to easily repair and exchange an air pump and a check valve set in a shoe for ventilation, to make the check valve to be hardly damaged and simplify the structure. SOLUTION: An air suction tube 2 is connected via a first check valve 5 to a pump main body 3 in the heel bottom part of a shoe and an air exhaust tube 4 is connected via a second check valve 6 to the pump main body 3, and the first and second check valves 5 and 6 are enabled to be attached/detached to the pump main body 3. In this case, both check valves are equipped with a connection tube 11, a thin film sheet valve body 13, and a valve receiving member 12. It is also preferable to make the valve body 13 to be included in a constraint condition, to form a contact passage by flattening the elastic valve member made of rubber or the like, and/or to protrude ribs on the flat part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a ventilation air pump and a check valve provided in a shoe.

[0002]

2. Description of the Related Art Conventionally, as a ventilation shoe for ventilating the air inside the shoe, for example, a shoe of Japanese Utility Model Publication No. 5-2083 is known, and such a ventilation shoe is usually used for ventilation. An air pump is installed at the bottom of the heel, and the air in the shoe is ventilated by operating the air pump by the stepping force when walking. In such shoes, the air on the toe side in the shoe is usually liable to get loose, so an air suction path is formed from the toe side to the air pump on the heel side at the inner bottom of the shoe, and the outside of the heel side from the air pump is formed. An air discharge passage is formed toward the air suction passage, and a check valve is arranged in each of the air suction passage and the air discharge passage.

[0003]

However, in the case of the above technique, the ventilation air pump and each check valve are integrally formed with the shoe. For example, when the check valve fails, or the air pump fails. There was a difficulty that it could not be easily repaired at times like this. Further, as the check valve, a structure in which a part of the valve body is fixed and the other end is rocked to open and close the passage as in the above Japanese Utility Model Publication No. 5-2083 is restricted by the air flow rate. It tends to break down after repeated use and has a problem with durability. Therefore, it has been desired to easily repair or replace the air pump or the check valve even when the check valve fails, and to make the check valve durable.

[0004]

In order to solve the above problems, the present invention provides a pump body according to claim 1, wherein a pump main body is disposed substantially in the center of the heel side bottom of the shoe, and the center of the heel is measured from the toe side. The air suction pipe is provided on the sole of the shoe, and the first backflow prevention valve is arranged at the heel side end of the air suction pipe, while from the approximately central part of the heel part to the lateral outside of the heel part. In an in-shoe ventilation air pump in which an air exhaust pipe is provided at the sole of the shoe and a second check valve is arranged at the outer end of the air discharge pipe, the pump main body is provided with a first check valve and a second check valve. The parts are removable.

By making the pump body detachable at the first and second check valves, the pump body can be removed when, for example, the pump body fails or the check valve fails. It can be easily handled by repairing or replacing.

Further, according to a second aspect of the present invention, a connecting pipe into which the ends of the air suction pipe or the air exhaust pipe can be fitted in the first and second check valves, and the connecting pipe are arranged inside the connecting pipe in an unconstrained state. A thin film plate-shaped valve body to be provided and a valve receiving member fixed to the connecting pipe are provided, and a fixing portion for fixing the connecting pipe to the connecting pipe and a tension member extending radially inward from the fixing portion. A vent portion for discharging and a tubular portion having a small diameter that axially projects from the vent portion and is inserted into the connecting pipe with a predetermined clearance are provided, and the valve body has a diameter larger than that of the valve receiving member. The diameter was smaller than the inner diameter of the connecting pipe. When this valve body moves to the air suction pipe or air discharge pipe side, it is possible to completely close the pipeline of the air suction pipe or air discharge pipe, and when it moves to the opposite side, the valve receiving member The air passage is formed between the inner peripheral surface of the connecting pipe and the outer peripheral surface of the valve body by contacting the cylindrical portion.

Further, according to a fifth aspect of the present invention, in a check valve for ventilation inside a shoe which is detachably attached to the air suction pipe or the air discharge pipe in the shoe, it can be fitted to the end of the air suction pipe or the air discharge pipe. A connecting pipe, a valve receiving member fixed to the other end side of the connecting pipe, and a thin film plate-shaped valve body arranged in an unrestrained state inside the connecting pipe are provided, and the connecting pipe is connected to the valve receiving member. A fixing part for fixing to the inside of the connecting pipe, a ventilation part extending from the fixing part toward the inner side in the radial direction, and a small-diameter part projecting in the axial direction from the ventilation part and inserted into the connecting pipe with a predetermined clearance. While providing a tubular portion, the valve body has a larger diameter than the tubular portion of the valve receiving member and a smaller diameter than the inner diameter of the connecting pipe, and when the valve body moves to the air suction pipe or the air discharge pipe side, Make it possible to completely block the pipeline of the suction pipe or air discharge pipe, and When moved to the contralateral, it comes into contact with the cylindrical portion of the valve receiving member, and as the air passage is formed between the outer peripheral surface of the inner circumferential surface and the valve body of the connecting tube.

Then, the pump main body is expanded or contracted to cause a relative air pressure difference between the air suction pipe and the pump main body or between the air discharge pipe and the pump main body to move the valve body in a predetermined direction. That is, by making the pump body negative pressure,
The air on the toe side is sucked from the air suction pipe toward the pump body side, and on the contrary, the pressure on the pump body side is increased to discharge the air in the pump body toward the air discharge pipe. Then, the first and second check valves prevent the reverse flow of air. At this time, the thin film plate-shaped valve element of each check valve is placed inside the connecting pipe in an unconstrained state, and when it moves to the air suction pipe or the air discharge pipe side, it adheres closely to the end of each pipe. Then, the pipe is completely closed, and when it moves in the opposite direction, the pipe is completely opened to allow a large amount of air flow. Moreover, since the structure is simple, it is hard to break down.

In the third aspect of the present invention, as the first and second check valves, a valve member is provided in which the tip end portion of the flexible member is flattened, and the flattened portion of the valve member has an intermediate portion in the thickness direction. The contact passage is formed in the section to close the air passage by closing the air passage, and when the air pressure on the pump body side increases, the contact is released and the air passage is opened. Ribs are provided at the points so as to increase the rigidity.

According to a sixth aspect of the present invention, in a backflow prevention valve for in-shoe ventilation that is detachably attached to an air suction tube or an air exhaust tube in a shoe, a valve in which a tip end portion of a flexible member is thinned to a flat shape is used. A member and a connecting pipe for fitting the flat portion of the valve member are provided, and a close contact passage is formed in an intermediate portion of the thickness of the flat portion of the valve member. When the air pressure on the pump body side is relatively increased, the contact is released to open the air passage, and a rib for enhancing rigidity is provided at a predetermined position of the flat portion.

Here, as the flexible member, a material having elasticity such as rubber is preferable, and the flat member is made to close the close contact passage of the flat portion by elasticity, and when the air pressure on the pump body side increases, the flat member is flattened by the pressure. Flex the passage so that it expands so that the contact is separated. With such a configuration, for example, a simple valve structure can be configured from a single flexible member, and a structure that is unlikely to malfunction can be obtained.
In addition, if the rigidity of the flat portion is increased by the ribs, for example, when the close contact passage is separated by air pressure and air flows,
It is possible to prevent a problem in which the flat portion vibrates and produces abnormal noise.

Further, in the present invention, a filter member for partitioning the air flow path into small compartments is provided near the second check valve near the discharge port. Such a filter member may be, for example, a net, a mesh such as a woven fabric, a perforated plate having a large number of through holes, a lattice, a parallel rod, or the like, and if the air passage is finely divided by this filter member, the air flow is rectified. Noise is further suppressed and pebbles, soil,
Can block sand and dust.

[0013]

Embodiments of the present invention will be described with reference to the accompanying drawings. Here, FIG. 1 shows the first of the present invention.
2 is a plan view of the shoe sole showing the arrangement of an air pump for ventilation in the shoe of the configuration example, FIG. 2 is a longitudinal sectional view of the same, FIG. 3 is a sectional view of a first check valve on the side of the air suction pipe, and FIG. It is a sectional view of the 2nd check valve on the side of a pipe.

The in-shoe ventilation air pump 1 of the present invention is arranged on the sole of the shoe as shown in FIGS. 1 and 2 in order to ventilate the inside of a shoe such as a soft business shoe.
The first configuration example of the ventilation air pump 1 includes an air suction tube 2 extending from the toe side toward the heel side, a pump main body 3 arranged at the heel portion, and an air discharge extending laterally from the heel portion. A pipe 4, a first check valve 5 provided at the connection between the air suction tube 2 and the pump body 3, and a second check valve 6 provided at the open end of the air discharge tube 4. It is provided so that the air sucked from the toe side end of the air suction pipe 2 can be discharged toward the outside air through the air discharge pipe 4.

In this shoe, a front sole 8 made of urethane, for example, is integrally formed below the inner sole 7, and the air suction pipe 2 is provided in a state of being buried in the front sole 8. The tip end of the air suction tube 2 is opened toward the inside of the shoe through the midsole 7 at the center of the toe side, and the rear end is formed with the lightening recess 8a formed on the inside of the shoe of the outsole 8.
It opens towards. And this lightening recess 8a is
In order to fit the pump main body 3 in a positioning manner, it is preliminarily formed at the time of molding the front bottom 8 according to the shape of the lower surface of the pump main body 3.

The pump body 3 is provided with the lightening recess 8a.
The upper and lower surfaces in the front-rear direction and the upper and lower surfaces in the width direction are each formed to bulge outward, and the upper part is positioned so as to project from the upper surface of the outsole 8 to the upper part. It has been made elastic so that it contracts when the treading force is applied and expands to its original form when the treading force is lost.

In this embodiment, the pump main body 3 is formed by a sealing process in which the front and rear end portions and the width end portions of the upper and lower two PVC materials which are curved and formed are fused. In particular, as is clear from FIG. 1, both end portions in the width direction are arched in a plan view so that the pump body 3 does not easily move in the shoe when fitted in the lightening recessed portion 8a. ing.

At the front part of the pump body 3, a thick connecting tube 10 for connecting to the first check valve 5 is attached integrally with the pump body 3.
The thick air discharge pipe 4 is integrally attached to the side of the pump body 3. The air discharge pipe 4 also serves as a connection tube for connecting the pump body 3 to the second check valve 6. By the way, this air exhaust pipe 4
Allows the second check valve 6 exposed to the outside to be arranged in a visually inconspicuous place, and extends from the substantially central portion of the heel toward the inside (toe side). Four
An insertion hole penetrating from the lightening recess 8a to the outside of the heel is formed in the front bottom 8 through which the air exhaust pipe 4 and the second check valve 6 can be incorporated. I have to.

As shown in FIG. 3, the first check valve 5 is a resin connecting pipe 11 into which the air suction pipe 2 can be fitted, and a valve fixed to an intermediate portion of the connecting pipe 11. A receiving member 12 and a thin film plate-shaped valve body 13 disposed inside the connecting pipe 11 and between the air suction pipe 2 and the valve receiving member 12 are provided, and the other end side of the connecting pipe 11 is The connection tube 10 on the pump body 3 side is fitted.

The valve receiving member 12 is the connecting pipe 1.
After being tightly inserted into the inner peripheral portion of 1, the outer peripheral fixing portion 12
a has a perforated ventilation portion 12b fixed to the connection pipe 11 by adhesion or the like, and a small-diameter cylindrical portion 12c attached to the inside of the ventilation portion 12b. The ventilation portion 12b allows air to flow through the holes. It is possible. And the valve receiving member 1
With 2 fixed to the connecting pipe 11, a predetermined clearance is formed between the outer circumference of the cylindrical portion 12c and the inner circumference of the connecting pipe 11.

The valve body 13 is, for example, an elastic thin film plastic plate having a diameter smaller than the inner diameter of the connecting pipe 11 and larger than the cylindrical portion 12c, and is arranged inside the connecting pipe 11 in an unrestrained state. However, even if a slight air pressure difference is generated between the pump body 3 side (connection tube 10 side) and the air suction pipe 2 side, the valve body 13 is provided with the air suction pipe 2 side and the tubular portion 12.
It can move freely between c. Further, the relationship between the valve body 13 and the conduit 2a of the air suction pipe 2 is as follows.
When 3 is moved to the side of the air suction pipe 2, even if it shifts to one side, the pipe line 2a can be completely blocked.

For this reason, when the pump main body 3 side becomes a negative pressure and the air pressure on the air suction pipe 2 side relatively increases, as shown in FIG. 3, the first backflow prevention valve 5 moves from the air suction pipe 2 side. The air flows inward, the valve body 13 is pressed against the tip of the tubular portion 12c, and the air flows along the inner peripheral portion of the connecting pipe 11 from the gap between the outer peripheral portion of the tubular portion 12c and the inner peripheral portion of the connecting pipe 11 to the ventilation portion. Connection tube 10 (pump body 3 side) through 12b
Flows into. On the contrary, when the pressure on the pump body 3 side increases, the valve body 13 comes into close contact with the end portion of the air suction pipe 2 to close the pipe line 2a. That is, air is prevented from flowing back into the shoe.

The second check valve 6 is, as shown in FIG. 4, a resin-made connecting pipe 15 into which the air discharge 4 can be fitted, and a valve receiver fixed to the end of the connecting pipe 15. A member 16 and a valve body 17 in the form of a thin film plate disposed inside the connection pipe 15 are provided. The valve body 17 has the same configuration as the valve body 13 of the first check valve 5.

The valve receiving member 16 is the connecting pipe 1
5, a cylindrical fixing portion 16a that can be tightly inserted from the end portion to the inner peripheral portion, a perforated ventilation portion 16b having a diameter slightly larger than the fixing portion 16a, and an inner side of the ventilation portion 16b. A small-diameter cylindrical portion 16c is provided, and the ventilation portion 16b allows air to flow through the hole. The ventilation part 16b is exposed to the outside of the shoe at the side of the heel part.

Therefore, when the pressure on the pump body 3 side increases, as shown in FIG. 4, air flows from the air discharge pipe 4 side toward the inside of the second check valve 6, and the valve body 17 is closed. Part 1
While being pressed against the tip of 6c, the air flows along the inner peripheral portion of the connecting pipe 15 to the outside through the ventilation portion 16b from the gap between the outer periphery of the cylindrical portion 16c and the inner periphery of the connecting pipe 15. On the contrary, when the pump main body 3 side has a negative pressure, the valve body 17 comes into close contact with the end of the air discharge pipe 4 and closes the pipe line 4a. That is,
It prevents backflow of air from the outside air into the pump body 3.

In the ventilation air pump according to the first configuration example as described above, in this embodiment, for the first check valve 5, for example, the connection pipe 11 to which the valve receiving member 12 is attached is connected to the connection tube. The second check valve 6 is fixed to the end of the air discharge pipe 4 and is integrated with the pump body 3 side. When assembling the ventilation air pump, the pump main body 3 should be attached to the first check valve 5 side.
The valve element 13 is inserted into the connecting pipe 11 on the side and inserted into the end portion of the air suction tube 2. For the second check valve 6 side, the valve element 17 is inserted into the connecting pipe 15 and the outside of the shoe. Then, the valve receiving member 16 is inserted and assembled. Also, when removing,
Can be easily removed in reverse order.

After incorporating the ventilation air pump 1 into the shoe sole, as shown in FIGS. 1 and 2, lay an insole 18 that has been sanitized such as deodorant and antibacterial inside the shoe. However,
A large number of air holes 18a are formed on the toe side of the insole 18, and a shock absorbing material 19 for absorbing shock is provided on the back side of the insole 18 and on the upper part of the pump body 3 at the heel. It is arranged.

In the ventilation air pump as described above, the pump body 3 is contracted by applying a stepping pressure to the pump body 3 especially during walking, and the air inside is discharged from the air discharge pipe 4 to the outside. When the stepping pressure is removed from 3, the pump body 3 expands and sucks the air in the toe portion from the air suction tube 2 into the pump body 3. Then, by repeating this, the air in which the toe portion is loose is ventilated. On this occasion,
The first and second check valves 5 and 6 prevent outside air from flowing into the inside of the shoe through the pump body 3, but at the same time, prevent the inflow of water or the like.

When the pump body 3 or the first and second check valves 5, 6 fail, the first and second check valves 5,
It can be easily removed from the part 6 and the work such as replacement and repair is easy. In addition, the first and second check valves 5,
The structure of 6 is simple, and since the internal valve bodies 13 and 17 are unrestrained and a large air passage can be secured, the ventilation function is high.

In the embodiment of the first configuration example, the air discharge pipe 4 is provided integrally with the pump body 3, but of course,
These may be configured separately.

Next, a second structural example of the air pump of the present invention will be described with reference to FIGS. 5 and 6. Here, FIG. 5 is an exploded perspective view of the air pump according to the second configuration example, FIG. 6 is an operation view from a front view for explaining the operation of the flat valve portion, and (A) is a state diagram in which the close contact passage of the flat portion is closed. , (B) are state diagrams in which the contact passage is opened.

As shown in FIG. 5, the first check valve 22 of the ventilation air pump 21 according to the second configuration example has a first pipe 23 as a connecting pipe and a valve member 24, and a second check valve. The valve 25 includes a valve member 24, a second pipe 26 as a connecting pipe, a filter member 27, and a cap member 28. Then, the first check valve 22 and the second check valve 25
The respective valve members 24, 24 are basically made of an elastic material such as rubber in the same form, and both of them have a flat portion 24a having a flattened tip end portion.

The first pipe 23 of the first check valve 22
One end of the first pipe 23 can be inserted into the pump body 30, and the other end of the first pipe 23 has a flat portion 24 of the valve member 24.
a can be inserted freely. The other end of the valve member 24 is connectable to the air suction pipe 2.

Here, the valve member 24 becomes a hollow portion having a tubular shape inside except for a part of the tip of the flat portion 24a, and the end portion of the flat portion 24a is in a closed form. At the tip end portion, a close contact passage m is formed which is cut along the flat longitudinal direction at the middle portion of the thickness, and the close contact passage m is communicated with the hollow portion inside. Further, in the close contact passage m, the plain parts are in close contact with each other due to the elasticity of the valve member 24 (FIG. 6 (A)), and when the internal pressure in the hollow portion is relatively increased, the close contact passage m is opened so as to expand. (FIG. 6 (B)).

Further, the flat portion 24a is formed in a tapered shape such that the wall thickness in the predetermined direction gradually becomes thinner toward the front end side, and further, a predetermined thickness is maintained in the middle portion of the flat portion. Such a pair of ribs r, r are provided so as to project and have a + shape in a front view. As shown in FIG. 6 (A), the ribs r and the length a in the protruding direction of the ribs are flat portions 24a.
The length b in the flat direction is smaller than the length b so that the contact passage m can easily expand when internal pressure is applied to the hollow portion.

The valve member 24 of the second check valve 25 is
One end side is made to be freely insertable into the air discharge part 30a integrated with the pump main body 30, and the flat part 24a on the other end side is
It can be inserted into one end of the second pipe 26. A cap member 28 can be fitted to the other end of the second pipe 26 via a filter member 27, and the cap member 28 has a large number of vent holes 28a.

Then, as described above, the valve member 24 of the second check valve 25 and the valve member 2 of the first check valve 22.
The configurations of 4 are the same. Further, the filter member 27 is a mesh member, and divides the flow path of the discharged air into small parts to rectify the flow.

Such first and second check valves 22 and 2
In FIG. 5, when the pump body 30 is stepped on, the pressure on the pump body 30 side increases due to the stepping pressure, and the close contact passage m of the valve member 24 on the second check valve 25 side is opened and air is discharged. On the other hand, the close contact passage m of the valve member 24 on the side of the first check valve 22 remains closed to prevent the backflow of air into the shoe.

On the contrary, when the stepping on the pump body 30 is released, the air pressure on the pump body 30 side is relatively weakened, and the close contact passage m of the valve member 24 on the first check valve 22 side is opened. The air in the shoe is sucked into the pump body 30 side, and the contact passage m of the valve member 24 on the second check valve 25 side remains closed.

Since each valve member 24 is integrally formed of an elastic member such as rubber, the valve member 24 has a simple structure, the frequency of failure can be suppressed, and the ribs r, r are provided.
As a result, vibration or the like does not occur when air is sucked in or exhausted, and abnormal noise is suppressed. Further, on the side of the second check valve 25, the generation of abnormal noise is further suppressed by the filter member 27,
Moreover, for example, it is possible to suppress the entry of pebbles, sand, soil, dust, and the like. Of course, the filter member 27 is not only a mesh,
A perforated plate having a large number of through holes, a lattice, a parallel bar, etc. can be applied.

The first and second check valves 2 as described above are also provided.
2 and 25, for example, when assembling the first check valve 22, the first check valve 22 which is integrated by previously inserting the valve member 24 into the first pipe 23 is connected to the pump body 30 and the air suction pipe 2. It suffices to connect it, and the second check valve 25
The valve member 24 is inserted into the second pipe 26 so as to be integrated, and this is connected to the air discharge portion 30a of the pump body 30, and the filter member 27 and the cap member 28 are inserted and assembled from the outside of the shoe. . When removing it,
It can be easily removed in the reverse order.

Therefore, also in this case, it is possible to easily replace or repair the parts. Further, for example, in the first configuration example, when water or the like enters the valve, there is a problem that the movement of the valve bodies 13 and 17 is likely to be poor, but in the second configuration example, such a problem does not occur.

[0043]

As described above, in the shoe ventilation air pump of the present invention, the pump body disposed at the heel portion can be detachably attached to the first and second check valves. Therefore, for example, when the pump body fails or when the check valve fails, the pump body can be removed and repaired or replaced easily. An air pump according to claim 2 and claim 5
As the first check valve and the second check valve,
Since the thin film plate-shaped valve body is arranged inside the connection pipe in an unconstrained state, a large air passage can be secured, a simple structure can be obtained, and moreover, failures can be reduced. Further, as in the air pump according to claim 3 and the check valve according to claim 6, as the first and second check valves, a valve member in which the tip of the flexible member is thinned flat is provided. If the contact passage is formed in a flat shape, it becomes possible to form a simple valve structure from a single flexible member, and a structure that is less likely to malfunction can be obtained. Further, if the rigidity of the flat portion is increased by the ribs, it is possible to prevent generation of abnormal noise due to the vibration of the flat portion. Further, by providing a filter member in the second check valve as in claim 4, it is possible to further suppress the generation of abnormal noise and prevent intrusion of pebbles, earth, sand, dust, and the like from the outside. I can.

[Brief description of drawings]

FIG. 1 is a plan view of a shoe sole showing an arrangement of an in-shoe ventilation air pump according to a first configuration example of the present invention.

FIG. 2 is a longitudinal sectional view of the same.

FIG. 3 is a sectional view of the first check valve on the side of the air suction pipe.

FIG. 4 is a sectional view of a second check valve on the side of the air exhaust pipe.

FIG. 5 is an exploded perspective view of an air pump according to a second configuration example.

FIG. 6 is a front view illustrating the action of the flat valve portion, and FIG. 6A is a state diagram in which the close contact passage of the flat portion is closed;
(B) is a state diagram where the contact passage is open

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Ventilation air pump, 2 ... Air suction pipe, 3 ... Pump main body, 4 ... Air discharge pipe, 5 ... 1st check valve, 6 ... 2nd check valve, 11 ... Connection pipe, 12 ... Valve receiving member, 12a ...
Fixed part, 12b ... Ventilation part, 12c ... Cylindrical part, 13 ... Valve body,
15 ... Connection pipe, 16 ... Valve receiving member, 16a ... Fixed part, 1
6b ... Ventilation part, 16c ... Cylindrical part, 17 ... Valve body, 21 ... Ventilation air pump, 22 ... First check valve, 24 ... Valve member,
Reference numeral 24a ... Flat portion, 25 ... Second check valve, 27 ... Filter member, 30 ... Pump body, m ... Adhesive passage, r ... Rib.

Claims (6)

[Claims] 1. A pump main body which is disposed substantially in the center of the bottom of the heel in a shoe, an air suction tube which is disposed in the sole of the shoe from the toe side toward the substantially center of the heel, and the air A first check valve arranged at the heel side end of the suction pipe, an air discharge pipe arranged at the sole of the shoe from the substantially central part of the heel part toward the outside of the heel part, and this air discharge An in-shoe ventilation air pump including a second check valve disposed at an outer end of a pipe, wherein the pump body is detachably attached to the first and second check valves. An air pump for ventilation inside shoes. 2. The in-shoe ventilation air pump according to claim 1, wherein the first and second check valves are connection pipes into which end portions of the air suction pipe or the air discharge pipe can be fitted. A thin film plate-shaped valve body which is arranged inside the connection pipe in an unconstrained state, and a valve receiving member fixed to the connection pipe, and the valve receiving member is a fixing portion for fixing to the connection pipe. And a ventilation part projecting inward in the radial direction from the fixing part, and a small-diameter cylindrical part projecting in the axial direction from the ventilation part and inserted into the connection pipe with a predetermined clearance, The valve body has a larger diameter than the cylindrical portion of the valve receiving member and a smaller diameter than the inner diameter of the connecting pipe, and when the valve body moves to the air suction pipe or the air discharge pipe side, the air suction pipe or the air discharge pipe. It was made possible to completely block the pipeline of When the vehicle moves to the air, the inside of the shoe is ventilated by contacting the tubular portion of the valve receiving member to form an air passage between the inner peripheral surface of the connecting pipe and the outer peripheral surface of the valve body. Air pump. 3. The in-shoe ventilation air pump according to claim 1, wherein the first and second check valves are flat valve thinned valve members, and the valve members. Of the valve member, the contact passage is formed in the middle portion of the thickness of the flat portion of the valve member, and the flat passage closes the air passage to close the air passage. When the air pressure is relatively increased, the contact is separated so that the air passage is opened, and at a predetermined position of the flat portion,
An air pump for in-shoe ventilation, characterized in that ribs are provided so as to increase rigidity. 4. The in-shoe ventilation air pump according to claim 3, wherein a filter member for partitioning the air flow path into small sections is provided near the air outlet near the second check valve. An air pump for ventilation inside shoes. 5. A check valve for ventilation in a shoe, which is detachably attached to an air suction pipe or an air discharge pipe in the shoe, and which can be fitted to an end of the air suction pipe or the air discharge pipe. With a tube,
A valve receiving member fixed to the other end of the connecting pipe, and a thin film plate-shaped valve body disposed inside the connecting pipe in an unconstrained state, and fixed to the connecting pipe to the valve receiving member. For fixing, a ventilation part that extends inward in the radial direction from this fixing part, and a small-diameter cylindrical part that projects axially from this ventilation part and is inserted into the connection pipe with a predetermined clearance. And the valve body has a diameter larger than the tubular portion of the valve receiving member and smaller than the inner diameter of the connecting pipe, and when the valve body moves toward the air suction pipe or the air discharge pipe side, the air suction pipe Alternatively, the pipe line of the air discharge pipe can be completely closed, and when the pipe moves to the opposite side, it comes into contact with the tubular portion of the valve receiving member to form an inner peripheral surface of the connecting pipe and an outer peripheral surface of the valve body. A check valve, characterized in that an air passage is formed between the two. 6. A check valve for ventilation in a shoe, which is detachably attached to an air suction pipe or an air discharge pipe in the shoe, wherein a tip end portion of a flexible member is flattened and thinned. A connecting pipe into which the flat portion of the valve member is fitted, and a contact passage is formed in an intermediate portion of the thickness of the flat portion of the valve member. When the air pressure on the pump body side is relatively increased, the airtightness is released by opening the air passage, and a rib for increasing rigidity is provided at a predetermined position of the flat portion. Check valve to check.