JP2013132463A - Insole for shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insole for a shoe, capable of preventing generation of humidity inside the shoe such as a leather shoe or rubber boot, and capable of preventing coldness and frostbite on a foot.SOLUTION: When a stretch chamber is opened as a user wearing the shoes walks, the stretch chamber is expanded with the elasticity of a spring, and accordingly, an inlet valve opens an inlet passage, and at the same time, an exhaust valve closes an exhaust passage. As a result, outside air is taken into the stretch chamber via the inlet passage. As the user wearing the shoes walks, the stretch chamber is pressed with the sole of the user's foot, when the inlet valve closes the inlet passage. At the same time, the exhaust valve opens the exhaust passage, whereby air inside the stretch chamber is discharged through an outlet.

Description

  The present invention relates to a shoe insole that is provided inside a shoe such as leather boots or rubber boots to prevent stuffiness in the shoe or to heat a foot portion in the shoe.

  Conventionally, in shoes such as leather boots or rubber boots, the humidity in the shoes increases due to a rise in summer temperature, which may cause the feet to sweat and cause bad odors or cause athlete's foot. .

  For this reason, conventionally, an insole for shoes that suppresses sweating of the foot has been devised. As an example, refer to Patent Document 1 described later. The insole for shoes in this document is provided with an air passage having an inlet at the heel side end and an outlet opening between the fingers at the finger side end portion. The first air pump that feeds the arch in the direction of the arch and the air sent from the first air pump to the second air pump provided in the vicinity of the finger, and from the second air pump through the spout It is designed to erupt.

  The structure of the insole for a shoe of such patent document is provided with a first air pump and a second air pump formed of a material having elasticity such as urethane rubber, and the walking of the user At this time, it is possible to inhale external air into the first air pump by pressing and releasing the first air pump by the vertical movement of the footpad.

  However, since it is difficult to accurately compress and extend the first air pump only by the elasticity of urethane rubber or the like, the followability of the first air pump that expands and contracts according to the vertical movement of the footpad is improved. Difficulties arise. Also, the part where the second pump is provided is a part where the upper and lower parts of the shoe are in a narrow space, and the foot part of this part hardly moves up and down during walking, and the foot part of the foot and the arch The middle leg in the middle is compressed by the second air pump and receives a cramped sensation.

  In general, if you wear shoes or rubber boots in winter, your toes may get cold due to the cold, or frostbite may occur due to poor blood circulation in extremely cold conditions. There is a need for a thermal insulation structure to eliminate such scandals.

JP 2001-112503 A

  The present invention has been made in view of the above circumstances, and prevents stuffiness occurring in shoes such as leather boots or rubber boots, and also prevents chilling and frostbite of the feet during the cold in winter. The purpose is to provide insoles for shoes.

  In order to solve the above problem, the insole for a shoe according to claim 1 of the present invention is provided with an elastic chamber having elasticity on the heel side of the insole used for shoes, and the insole in the elastic chamber. Provided with a spring that exerts an elastic force on the surface and a pressing plate that covers the upper surface of the spring, and forms a suction passage having a suction port for sucking outside air behind the expansion chamber, while the front of the expansion chamber In addition, a discharge passage having a discharge port for discharging air is formed between the fingers of the shoe user, and a suction valve having a check valve structure for sending air only from the suction port to the expansion chamber is provided in the suction passage. The exhaust passage is provided with a check valve structure that sends air only from the expansion / contraction chamber to the discharge port. When the expansion / contraction chamber is opened as a user wearing shoes walks, As the expansion / contraction chamber expands, the suction valve opens the suction passage and the discharge valve closes the discharge passage. As a result, when the outside air is sucked into the expansion / contraction chamber from the suction port through the suction passage and the user wears shoes presses the expansion / contraction chamber with the sole of the user as he / she walks, At the same time as the suction passage is closed, the discharge valve opens the discharge passage so that the air in the telescopic chamber is discharged from the discharge port.

  The shoe insole according to claim 2 of the present invention is the shoe insole according to claim 1, wherein an auxiliary air chamber is provided in the middle of the discharge passage and corresponding to the arch of the insole, and the air in the auxiliary air chamber is removed from the outside. The discharge port which discharges to the direction is provided toward the upper side of the heel side of the insole.

  According to a third aspect of the present invention, the insole for a shoe according to the first or second aspect of the present invention extends the suction passage communicating with the rear of the inflatable chamber of the insole to the vicinity of the top of the shoe heel, It is characterized in that a stopper is provided to clamp the upper part and the top part of the shoe heel.

  According to claim 4 of the present invention, an insole for shoes according to claim 1, 2 or 3 is provided with an auxiliary air chamber in a portion corresponding to the arch of the insole in the middle of the discharge passage, and the auxiliary air A warmer is provided so as to come into contact with the chamber.

  Further, a shoe insole according to claim 5 of the present invention is the shoe insole used in the boots according to claim 1, 2, 3 or 4, wherein the suction passage communicates with the rear of the expansion chamber of the insole. Are formed in a plurality of bent shapes on both sides above the boots of the boots, and a warmer is attached to each bent passage.

  Since the insole for shoes of the present invention is configured as described above, external air is sucked into the stretchable chamber from the suction port through the suction passage according to the motion of the user wearing the shoes walking, As a result of the air in the expansion / contraction chamber being discharged between the fingers of the shoe user through the discharge passages through the discharge passages, it becomes possible to prevent the feet from becoming stuffy.

  In the present invention, the suction passage is provided with a check valve having a check valve structure that sends air only from the suction port toward the expansion / contraction chamber, and air is sent to the discharge passage only from the expansion / contraction chamber to the discharge port. Since the check valve structure is provided with a discharge valve, it is not necessary to inhale the steamed air from the discharge port and into the expansion / contraction chamber. It is possible to discharge.

  Further, in the present invention, an auxiliary air chamber is provided in a portion corresponding to the arch of the insole in the middle of the discharge passage, and the discharge port for discharging the air in the auxiliary air chamber to the outside is provided on the upper side of the insole When the user who wears shoes steps on the arch by walking or other movements, the air in the auxiliary air chamber can be discharged from the discharge port toward the upper side of the insole. This is also useful for preventing stuffiness around the heel of the shoe user.

  Also, in the present invention, a stopper is provided that extends to the vicinity of the top of the shoe heel and extends between the suction passage connected to the back of the insole expansion / contraction chamber and sandwiches the top of the suction passage and the top of the shoe heel. With this configuration, the suction port of the suction passage can be easily fixed near the top of the shoe heel, and fresh fresh air can be sucked from the suction port of the suction passage.

  Further, in the present invention, the auxiliary air chamber is provided in a portion corresponding to the arch of the insole in the middle of the discharge passage, and the warm air is provided so as to contact the auxiliary air chamber. Since the indoor air can be warmed and the warmed air can be discharged around the fingertips of the shoe user, it is possible to effectively prevent the feet from getting cold and frostbite during the cold season in winter. Further, with such a configuration, the entire insole can be warmed by heat conduction, and the inside of the shoe can be used in a warm condition in the winter.

  Further, in the present invention, a shoe insole for use in boots, wherein a bent passage formed by forming a plurality of bent passages communicating with the rear of the stretchable chamber of the insole in a plurality of bent shapes is provided on both sides above the heel of the boots. In the case of boots, even in the case of boots, the air in the auxiliary air chamber can be warmed by the warmer, and the warmed air can be discharged around the fingertips of the shoe user. Therefore, it is possible to effectively prevent the feet from getting cold and frostbite in the winter cold. Further, with such a configuration, the entire inside of the boots can be warmed by heat conduction, and even when the boots are worn in a cold situation in winter, the boots can be used in a warmed state.

It is a longitudinal cross-sectional view of the shoes which laid the insole for shoes concerning Example 1 of this invention. It is a top view which shows the internal structure of the insole for shoes which concerns on Example 1 of this invention. It is a perspective view of the fastener used for the insole for shoes of this invention. It is a figure which shows the non-return valve used for the insole for shoes of this invention, (a) is a front view of a non-return valve, (b) is sectional drawing which shows a non-return valve, (c) is a reverse check which opened. It is sectional drawing which shows a stop valve. It is a top view which shows the other structure of the insole for shoes based on Example 1 of this invention. It is a longitudinal cross-sectional view of the boots which laid the insole for shoes concerning Example 2 of this invention. It is a top view which shows the structure of the insole for shoes which concerns on Example 2 of this invention.

  Embodiments of the present invention will be described below with reference to the drawings.

  The insole for shoes of a present Example has the structure which provided the expansion-contraction chamber 3 which has a stretching property in the heel side of the insole 1 made to lay on the bottom face 2a of the shoe 2, as shown in FIG. In such a configuration, the insole 1 can be used for shoes made of various materials such as leather, cloth, synthetic resin or rubber, and has an outer shape corresponding to the inner bottom surface of the applied shoes. Is possible.

  Further, the insole 1 of the present embodiment can be formed of a material having elasticity such as urethane rubber, or a sheet material made of other synthetic resin having elasticity, for example, a suction passage 6 and an extension chamber 3 which will be described later. The insole 1 of this embodiment is formed by joining two sheets at a portion other than the discharge passage 7 and forming each of the suction passage 6, the expansion chamber 3, and the discharge passage 7 into a predetermined hollow shape. Can be formed.

  In the above configuration, as shown in FIG. 1 or FIG. 2, the stretchable chamber 3 of the insole 1 has a substantially circular hollow air chamber, and the inside of the stretchable chamber 3 has a surface with respect to the surface of the insole 1. In addition, a spring 5 that expands and contracts by exerting an elastic force is provided, and a pressing plate 4 that covers the upper surface of the spring 5 is provided.

  The spring 5 is formed of a rigid metal having elastic force or a hard synthetic resin having elastic force, and has a spring-like shape, and the center of the spring 5 extends upward in a natural state at a predetermined height. It is formed to exhibit spring elasticity. Further, the pressing plate 4 is formed of a thin metal plate or a hard synthetic resin plate having a size covering the upper surface of the spring 5, and is housed in the expansion chamber 3 at the upper portion of the spring 5, thereby 5 and the top surface of the expansion / contraction chamber 3. In this state, when the expansion / contraction chamber 3 is pressed from above, the pressing plate 4 pushes the spring 5 downward against the elastic force of the spring 5 to compress the expansion / contraction chamber 3, while against the expansion / contraction chamber 3. When the pressing force is released, the expansion / contraction chamber 3 is pushed upward by the elastic force of the spring 5 to expand the expansion / contraction chamber 3. In such an insole 1, it is possible to protect the user's heel and improve the comfort of wearing by laying an elastic cushion material on the portion where the pressing plate 4 is provided.

  Further, in this embodiment, as shown in FIG. 1 or FIG. 2, the suction passage 6 provided in the rear portion of the expansion / contraction chamber 3 of the insole 1 extends to the vicinity of the top of the shoe heel 2b, and the suction passage 6 It is set as the structure which provided the fastener 19 which pinches | interposes and fixes an upper part and the top part of the shoe | mouth 2b of shoes. In such a configuration, the suction passage 6 can be formed by two tube shapes as shown in FIG. 2, but may be formed by three or more tube shapes. Further, as shown in FIG. 3, the stopper 19 is formed in a holding structure having a U-shaped cross section by an elastic metal or synthetic resin, and the upper end of the shoe heel 2b and the upper end of the suction passage 6 are formed by the stopper 19. Try to stop it. At this time, a gap 20 is formed between the suction port 9 of the suction passage 6 and the top surface of the stopper 19, and external air enters the suction port 9 of the suction passage 6 from the gap 20.

  On the other hand, a discharge passage 7 is formed in front of the expansion / contraction chamber 3, and an auxiliary air chamber 8 is provided in the middle of the discharge passage 7 and corresponding to the arch of the insole 1. Are connected by a connecting passage 12. Further, the discharge passage 7 is curved so as to extend between the toes of the user wearing the shoe 2 as it advances to the front portion of the insole 1, and a plurality of portions are provided at positions corresponding to the user's fingers. The discharge port 7a is configured to be directed. The discharge passage 7 is made of a flexible tube material made of synthetic resin, and the user bends the tube-shaped discharge passage 7 according to his / her preference depending on the size and shape of the user's legs. Then, the discharge passage 7 may be sandwiched between the sheet materials on the upper and lower surfaces of the insole 1 and fixed with an adhesive or the like.

  In the above-described configuration, the suction passage 6 is provided with a suction valve 10 having a check valve structure that sends air only from the suction port 9 toward the expansion chamber 3, and the discharge passage 7 has a discharge port 7 a from the expansion chamber 3. The exhaust valve 14 having a check valve structure for sending air only in the direction of is provided.

  Specifically, such a valve structure is provided with a suction valve 10 at the inlet 11 to the expansion / contraction chamber 3 in the suction passage 6 and to the auxiliary air chamber 8 in the discharge passage 7 as shown in FIG. A discharge valve 14 is provided at the inlet 13, and each valve structure is configured to open only in one direction from the intake passage 6 to the discharge passage 7.

  As shown in FIGS. 4A to 4C, such a check valve structure is provided at the inlet 11 from the suction passage 6 to the expansion / contraction chamber 3 and at the inlet 13 from the connection passage 12 to the auxiliary air chamber 8. Both ends of a valve body 21 made of a rectangular flat elastic rubber closing each inlet 11 or 13 are fixed to the wall surface of the peripheral portion of the inlet 11 or 13 by fixing portions 21a and 21a on both sides.

  In such a configuration, as shown in FIG. 4B, the valve body 21 is brought into close contact with the wall surface by the pressure of the air that presses the valve body 21 from the inside of the expansion / contraction chamber 3 or the auxiliary air chamber 8. Or close 13. Further, as shown in FIG. 4 (c), the valve body 21 is lifted against the elastic force by the pressure of the air flowing into the inlet passage 11 or 13 through the suction passage 6 or the connection passage 12, so that the inlet 11 or 13 is opened. open.

  When the insole 1 for shoes according to the present embodiment is configured as described above, when the heel is raised as the user wearing the shoes 2 walks, the elastic chamber 3 is opened and the spring is released. The elastic chamber 3 is expanded by the elastic force of 5. Along with this, the suction valve 10 opens the suction passage 6 and simultaneously the discharge valve 14 closes the discharge passage 7, so that external air is sucked into the telescopic chamber 3 from the suction port 9 through the suction passage 6. At this time, since the discharge valve 14 at the inlet 11 to the telescopic chamber 3 is closed, it is possible to prevent the steamed air between the fingers from flowing back through the discharge passage 7.

  On the other hand, when the user wearing the shoes 2 presses the telescopic chamber 3 with the sole of the user as he walks, the suction valve 10 closes the suction passage 6 and the discharge valve 14 opens the discharge passage 7 at the same time. By doing so, the air in the expansion chamber 3 is discharged from the discharge port 7a. At this time, since the suction valve 11 provided at the inlet 11 to the expansion / contraction chamber 3 is closed, all the air in the expansion / contraction chamber 3 is discharged from the discharge port 7a. As a result, as a result of the air in the expansion / contraction chamber 3 being discharged between the fingers through the respective discharge ports 7a, fresh external air can be sent between the toes, and it is possible to prevent the feet from becoming stuffy.

  Further, in the present embodiment, as shown in FIG. 1 or FIG. 2, an auxiliary air chamber 8 is provided in the middle of the discharge passage 7 and corresponding to the arch of the insole 1, and the air in the auxiliary air chamber 8 is removed from the outside. It is possible to make it the structure which provided the discharge port 15 discharged to the direction toward the upper side of the insole 1 side. With such a configuration, every time a user wearing the shoes 2 steps on the arch by walking or other actions, the air in the auxiliary air chamber 8 is discharged from the discharge port 15 toward the upper side of the insole 1. It is possible to prevent stuffiness around the heel of the user of the shoe 2. By forming a plurality of discharge ports 8a in the auxiliary air chamber 8, the air in the auxiliary air chamber 8 is discharged from the discharge ports 8a to the vicinity of the arch by walking or other actions of the shoe user. It becomes possible to do.

  Further, in this embodiment, as shown in FIG. 5, the warmer 16 is provided so as to be in contact with the auxiliary air chamber 8 described above, so that the air in the auxiliary air chamber 8 is warmed by the warmer 16 and this warming is performed. The air can be discharged around the fingertip of the user of the shoe 2. For this reason, it becomes possible to effectively prevent the feet from getting cold and frostbite in the cold in winter. In such a configuration, the warmer 16 may be a commercially available thin and adhesive type having a heat generating action, but the warmer 16 is removably stored in a portion that contacts the surface of the auxiliary air chamber 8. A pocket-shaped storage body 17 may be provided.

  With such a configuration, the air in the auxiliary air chamber 8 warmed by the warmer 16 warms the air in the expansion / contraction chamber 3, and the warmed air is passed through the discharge passage 7 to the plurality of discharge ports 7 a. After that, it can be discharged between the fingers of the shoe user. As a result, the area around the fingers can be warmed, the entire insole 1 can be warmed by heat conduction, and the entire interior of the shoe 2 can be warmed, so that the shoe 2 can be used in a warm condition in the cold season in winter. It becomes possible.

  In this embodiment, as shown in FIG. 6 or FIG. 7, the insole 1 according to the present invention is applied to a boot 18 such as a rubber boot. Accordingly, the structure of the insole 1 is the same as that of the first embodiment, but the suction passage 6 communicating with the rear of the stretchable chamber 3 of the insole 1 is formed in a plurality of bent shapes so as to be suitable for the structure of the boots 18. The bent passages 22 are provided on both sides above the heel of the boots 18 so that the warmers 16 are bonded to the respective bent passages 22.

  In such a configuration, the bent passage 22 is formed in a state where the air flow passage 22a is bent in a zigzag manner while the two flexible synthetic resin sheets are joined to each other. The bending chamber 3 of the floor 1 is communicated with the lower suction passage 6a, and the suction passage 6 is communicated with the upper end portion of the flow passage 22a. Then, as in the first embodiment, the suction passage 6 is extended to the vicinity of the upper portion of the boot shoe 18a, and the upper portion of the suction passage 6 and the top portion of the boot shoe 18a are detachably fixed by a stopper 19. Is possible.

  In addition, as for the warmer 16 bonded to the bent passage 22, a commercially available warmer 16 is used, and the storage body 17 for detachably storing the warmer 16 is fixed to the bent passage 22 in contact. good.

  In the above configuration, air warmed by the warmer 16 can be sucked into the expansion / contraction chamber 3 through the suction passage 6 by the walking motion of the user wearing the boots 18. Further, the warm air in the expansion / contraction chamber 3 can be discharged through the discharge passage 7 from the discharge port 7a to the fingers of the shoe user, and the periphery between the fingers can be warmed. Further, by warming the entire insole 1 by heat conduction, the entire inside of the boots 18 can be warmed, and it becomes possible to use the boots 18 in a state of being warmed in a cold situation in winter.

  The insole for shoes of the present invention can be used as an insole for shoes that prevents stuffiness occurring in shoes such as leather boots or rubber boots, and prevents cold feet and frostbite in the cold in winter. It is.

DESCRIPTION OF SYMBOLS 1 Insole 2 Shoe 2a Shoe bottom 2b Shoe heel 3 Stretch chamber 4 Press plate 5 Spring 6 Suction passage 6a Lower suction passage 7 Discharge passage 7a Discharge port 8 Auxiliary air chamber 8a Discharge port 9 Suction port 10 Suction valve 11 Stretch chamber Inlet 12 Connecting passage 13 Inlet 14 to the auxiliary air chamber Drain valve 15 Discharge port 16 Cairo 17 Storage body 18 Boot 18a Boot boot
19 Stopper 20 Clearance 21 Valve body 21a Fixing portion 22 Bent passage 22a Flow passage

Claims (5)

A stretchable chamber having elasticity is provided on the heel side of the insole used for shoes, and a spring that exerts elasticity against the surface of the insole and a pressing plate that covers the upper surface of the spring are provided inside the stretchable chamber. ,
A suction passage with a suction port for sucking outside air is formed at the back of the expansion chamber, while a discharge passage with a discharge port for discharging air between the fingers of the shoe user is formed at the front of the expansion chamber. ,
A suction valve with a check valve structure that sends air only from the suction port to the expansion chamber in the suction passage, and a check valve structure discharge valve that sends air only from the expansion chamber to the discharge port in the discharge passage Provided,
When a user wearing shoes opens the expansion chamber as he walks, as the expansion chamber expands due to the elastic force of the spring, the suction valve opens the suction passage and simultaneously the discharge valve closes the discharge passage. The outside air is sucked from the suction port through the suction passage into the telescopic chamber,
When a user wearing shoes presses the telescopic chamber with the sole of the user as he walks,
An insole for shoes, wherein the air is exhausted from the exhaust port by closing the suction passage and simultaneously the discharge valve opening the discharge passage. An auxiliary air chamber is provided in the middle of the discharge passage and corresponding to the arch of the insole, and a discharge port for discharging the air in the auxiliary air chamber outward is provided facing the upper side of the insole. The insole for shoes according to claim 1. The suction passage that communicates with the rear of the insole expansion / contraction chamber extends to the vicinity of the top of the shoe heel, and is provided with a stopper that sandwiches and stops the upper portion of the suction passage and the top of the shoe heel. The insole for shoes according to claim 1 or 2. The auxiliary air chamber is provided in a portion corresponding to the arch of the insole in the middle of the discharge passage, and a warmer is provided so as to contact the auxiliary air chamber. Insoles for shoes. The insoles for boots used for boots, each of which is provided with bent passages formed in a plurality of bent shapes in suction passages communicating with the rear of the stretch chambers of the insoles on both sides of the upper boots. The insole for shoes according to claim 1, wherein the insole is provided so as to adhere a body warmer.