JP2013215529A - Repulsive force adjust device, insole of shoe, shoe, control method of repulsive force adjust device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a repulsive force adjusting device automatically adjusting the repulsive force of a shoe according to a condition of a road determining the condition of the road on which a user moves.SOLUTION: A repulsive force adjust device has a repulsive force adjusting member 60 used for adjusting the repulsive force of a bottom part of a shoe, a drive part 50 moving the repulsive force adjust device, a detecting part 20, detecting physical quantities based on the action of a user of the shoe, and a control part 40 detecting a condition of a road on which the user moves based on a physical quantity detected by the detecting part, moving the repulsive force adjusting member by the drive part, and adjusting such that the bottom part of the shoe generates a repulsive force according to the condition of the road.

Description

  The present invention relates to a repulsive force adjusting device, a shoe insole, a shoe, a control method of the repulsive force adjusting device, and the like.

  Various types of shoes are manufactured according to the purpose, such as running shoes, basketball shoes, and climbing shoes. For example, basketball shoes are manufactured using a material having excellent shock absorption in order to protect a user's foot from impact of landing. However, even if the shock absorption is excellent, basket shoes are not suitable for short distance running, for example, and short distance runners wear running shoes.

  As described above, a shoe user usually selects a specific type of shoe in accordance with the type and purpose of exercise (for example, for practice or competition). That is, generally manufactured shoes cannot adjust performance characteristics such as shock absorption, elasticity, and magnitude of repulsion. Therefore, the shoe user selects from a plurality of types of shoes according to the type and purpose of the exercise.

  On the other hand, Patent Document 1 discloses a shoe in which a built-in device changes performance characteristics by deforming its adjustable element. According to the invention of Patent Document 1, it is possible to provide a shoe that automatically adjusts performance characteristics so as to meet a user's request (for example, various exercises).

JP 2004-267784 A

  However, in the invention of Patent Document 1, based on a threshold value determined by a test, it is determined whether the compression of the medium is excessive or insufficient, and the adjustable element is deformed. At this time, if the user has the same kicking force, the amount of deformation of the adjustable element is the same regardless of the state of the path on which the user moves (hereinafter referred to as the moving path). That is, the performance characteristics are determined regardless of the travel path. The midsole is a material placed between the shoe sole and the midsole (the sole inside the shoe).

  Here, in some exercises, the state of the moving path changes greatly during competition. For example, in short-distance running, a straight road and a curved road are moved alternately. Further, for example, in mountain climbing, an uphill and a downhill are moved. In such an exercise, it is preferable that the performance characteristics of the shoe, particularly the repulsive force, change according to the movement path.

  For example, in a short-distance running curved road, a weaker repulsive force than a straight road can take a longer contact time with the ground, making it difficult to go out of the course and improving recording. Further, when climbing downhill, weakening the repulsive force than climbing uphill reduces the impact of the foot, and also allows time for contact with the ground to be prevented from slipping down.

  Patent Document 1 describes that speed change, climbing, and descending are discriminated according to stride frequency. However, skilled sprinters are trained to keep the stride during the competition constant. Moreover, if it is an experienced mountain climber, a stride will not be extended extremely even if it is a downhill in order to prevent an accident. Therefore, the stride frequency is not directly related to the state of the moving road, and it is preferable to determine the state of the moving road by another method to adjust the performance characteristics of the shoes, particularly the repulsive force.

  The present invention has been made in view of the above problems. According to some aspects of the present invention, it is possible to provide a repulsive force adjusting device and the like that determine the state of a road on which a user moves and automatically adjust the repulsive force of a shoe according to the state of the road. .

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following aspects or application examples.

[Application Example 1]
The repulsive force adjusting device according to this application example has a repulsive force adjusting member used for adjusting a repulsive force of a shoe bottom, a drive unit for moving the repulsive force adjusting member, and a physical quantity based on a user's operation of the shoe. Detecting a state of the road on which the user moves based on a detection unit to detect and a physical quantity detected by the detection unit, and moving the repulsive force adjusting member by the driving unit, so that the bottom of the shoe And a control unit that adjusts so as to generate a repulsive force according to the state.

  In the repulsive force adjusting device according to this application example, the repulsive force at the bottom of the shoe is adjusted by the drive unit moving the repulsive force adjusting member. When the user kicks the ground, the shoe is deformed and a repulsive force is generated when the shoe returns. Here, the repulsive force adjusting member is, for example, a resin plate, a metal plate, etc. If the repulsive force adjusting member is deformed along with the deformation of the shoe, a large repulsive force is generated when returning to the original state. Therefore, the repulsive force of the shoe can be adjusted by moving the repulsive force adjusting member by the drive unit and adjusting the deformation of the repulsive force adjusting member when the shoe is deformed. In addition, you may adjust the repulsive force of shoes using the elastic member as a repulsive force adjustment member using the force which is compressed and returns.

  As described above, for example, in short-distance running and mountain climbing, it is preferable that the repulsive force of the shoes changes depending on the state of the moving path. The repulsive force adjustment device according to this application example includes a detection unit that detects a physical quantity based on the action of the shoe user. The detection unit may be, for example, a pressure sensor, an acceleration sensor, an angular velocity sensor, or the like, and the physical quantity may be a pressure, an acceleration, an angular velocity, or the like measured by these sensors.

  And the control part of the repulsive force adjustment apparatus which concerns on this application example judges the state of a moving path based on the detected physical quantity, and moves a repulsive force adjustment member to a drive part. For example, when it is determined that the moving path is a straight path, the drive unit is instructed to extend the repulsive force adjusting member to the maximum extent, and the repulsive force adjusting member is greatly deformed along with the deformation of the shoe. A repulsive force may be obtained. Here, the control unit may be, for example, a microcontroller or a CPU, and the drive unit may be various actuators such as a motor.

  Thus, the repulsive force adjustment device according to this application example can adjust the repulsive force according to the state of the moving path. Therefore, it is possible to always obtain a repulsive force suitable for the exercise as if a plurality of athletic shoes were changed according to the moving path.

[Application Example 2]
The repulsive force adjusting device according to the application example includes a container that houses at least a part of the repulsive force adjusting member, and the control unit moves the repulsive force adjusting member toward the container by the driving unit or the container. The size of the portion of the repulsive force adjusting member accommodated in the container may be changed by moving in a direction away from the container.

  According to the repulsive force adjusting device according to this application example, the container includes at least a part of the repulsive force adjusting member. And a drive part accommodates a repulsion force adjustment member in a container, or takes out from a container according to the instruction | indication from a control part.

  For example, the container may be disposed on the toe side of the arch portion, or may be disposed on the heel side. At this time, the portion of the repulsive force adjusting member that is out of the container is deformed along with the deformation of the shoe, which contributes to increasing the repulsive force of the shoe. Conversely, when the repulsive force adjusting member is completely accommodated in the container, the repulsive force of the shoe is minimized.

  Thus, the control part of the repulsive force adjusting apparatus according to this application example can adjust the repulsive force of the shoe by changing the size of the portion of the repulsive force adjusting member accommodated in the container.

[Application Example 3]
In the repulsive force adjustment device according to the application example, when the control unit detects that the user is moving along a curved path based on the physical quantity detected by the detection unit, the control unit causes the user to The repulsive force adjusting member may be moved so that a portion of the repulsive force adjusting member accommodated in the container is made larger than when it is detected that the vehicle is moving on a path other than a curved road.

[Application Example 4]
In the repulsive force adjustment device according to the application example described above, when the control unit detects that the user is moving on a straight road based on the physical quantity detected by the detection unit, the repulsion force is adjusted by the drive unit. When it is detected that the portion of the force adjustment member accommodated in the container is minimized, and the path on which the user moves is changed from a straight path to a curved path based on the physical quantity detected by the detection unit The drive unit gradually increases the portion of the repulsive force adjustment member accommodated in the container, and the path on which the user moves changes from a curved path to a straight path based on the physical quantity detected by the detection unit. When it is detected that the movement is being performed, the drive unit may gradually reduce the portion of the repulsive force adjustment member that is accommodated in the container.

[Application Example 5]
In the repulsive force adjustment device according to the application example described above, when the control unit detects that the user is going down a hill based on the physical quantity detected by the detection unit, the drive unit causes the user to The portion accommodated in the container of the repulsive force adjusting member may be made larger than when it is detected that the upper limit is exceeded.

  According to the repulsive force adjusting device according to these application examples, the specific repulsive force of the shoe is adjusted according to the movement path. When it is determined that the user is moving on the curved road, the control unit may accommodate a larger portion of the repulsive force adjusting member in the container than when the moving path is not a curved road. That is, by making the repulsive force on the curved road smaller, the curve is easily bent. Here, the curved road refers to a road that curves to the right or left.

  On the other hand, when it is determined that the user is moving on the straight road, the control unit may minimize the portion of the repulsive force adjustment member that is accommodated in the container. In other words, the user can run faster by maximizing the repulsive force on a straight road. Here, the straight road means a straight road.

  In the process of changing from a straight road to a curved road, the control unit may gradually increase the portion of the repulsive force adjusting member that is accommodated in the container. That is, you may adjust so that a repulsive force may become small gradually. Conversely, in the process of changing from a curved road to a straight road, the control unit may gradually reduce the portion of the repulsive force adjusting member that is accommodated in the container. That is, you may adjust so that a repulsive force may become large gradually. If the change in repulsive force is abrupt, the sense of running changes abruptly, and the shoe user may feel uncomfortable. This may result in a decrease in athletic ability.

  Further, the repulsive force adjustment device according to the application example described above may cope with not only a change in the horizontal direction but also a change in the vertical direction. That is, when the control unit determines that the user is going down the hill, the control unit may make the portion of the repulsive force adjustment member accommodated in the container larger than when the user determines that the hill is going up. Good. That is, the downhill may be adjusted so that the repulsive force of the shoes is smaller than that of the uphill.

  At this time, since the contact time with the ground is long on the downhill, it is possible to prevent slipping down. For example, when climbing, it is possible to descend safely. Moreover, the impact of the foot at the time of landing can be eased.

[Application Example 6]
In the repulsive force adjustment device according to the application example described above, the detection unit may include at least a pressure sensor.

[Application Example 7]
In the repulsive force adjustment device according to the application example described above, the pressure sensor included in the detection unit may be one.

  According to the repulsive force adjusting apparatus according to these application examples, the detection unit includes the pressure sensor. Then, the control unit identifies which part of the sole of the foot is under great pressure based on the detected pressure, and determines the state of the moving path. For example, when a large pressure is applied to the inner side of the right ball of the right ball, it is determined that the body is running on a curved road with the body tilted to the left.

  At this time, the detection unit may be provided with pressure sensors, for example, on the inner side of the thumb ball, the inner side of the thumb ball, and the base of the little finger. That is, a plurality of pressure sensors may be used. However, a single pressure sensor is desirable for cost reduction. At this time, the control unit may determine the state of the moving path by identifying a portion where a large pressure is applied, for example, from the detected pressure difference.

[Application Example 8]
The insole of the shoe according to this application example includes the repulsive force adjusting device according to any one of the application examples described above.

[Application Example 9]
The shoe according to this application example includes the above-described insole of the shoe.

  The insole of the shoe according to the application example described above includes the repulsive force adjusting device, so that the state of the road on which the user moves is determined, and the repulsive force of the shoe is automatically adjusted according to the state of the road. . Then, it is possible to automatically adjust the repulsive force for any shoe simply by laying the insole of the shoe having the adjustment function described above.

[Application Example 10]
The shoe according to this application example includes the repulsive force adjustment device according to any one of the application examples described above.

  The shoe according to the application example includes the above-described repulsive force adjusting device in a shoe sole portion, for example. Therefore, in order to obtain the effect that the repulsive force of the shoe is automatically adjusted according to the road condition, the user only needs to wear the shoe. Since the user does not perform any operation, the user does not feel bothered.

[Application Example 11]
According to this application example, a repulsive force adjusting member that is a member used for adjusting the repulsive force of the bottom of the shoe, a drive unit that moves the repulsive force adjusting member, and a physical quantity based on an operation of the user of the shoe is detected. A method of controlling a repulsive force adjusting device including a detecting unit includes: detecting a state of a path on which the user moves based on a physical quantity detected by the detecting unit; and moving the repulsive force adjusting member by the driving unit. And adjusting the bottom of the shoe to generate a repulsive force according to the condition of the road.

  The control method of the repulsive force adjusting device according to this application example can adjust the repulsive force according to the state of the moving path. Therefore, it is possible to always obtain a repulsive force suitable for the exercise as if a plurality of athletic shoes were changed according to the moving path.

The block diagram of the repulsive force adjustment apparatus of 1st Embodiment. The perspective view of shoes containing the repulsive-force adjustment apparatus of 1st Embodiment. FIGS. 3A to 3B are views for explaining expansion and contraction of the repulsive force adjusting member. The figure which divided the track (running track) of the short distance run in relation to the repulsive force adjustment device. FIGS. 5A to 5D are diagrams for explaining the correspondence between the track sections and the expansion and contraction of the repulsive force adjusting member. FIG. 6A to FIG. 6B are diagrams showing examples of arrangement of pressure sensors. FIG. 7A to FIG. 7B are diagrams showing a correspondence relationship between a track section and a pressure receiving portion. The schematic diagram of the cross section of the pressure sensor element of 1st Embodiment. FIG. 3 is a bottom view schematically showing the resonator element and the diaphragm of the first embodiment. The schematic diagram of the cross section of the pressure sensor element of 1st Embodiment. The figure which shows the correspondence of the detection pressure and the state of a moving path in 1st Embodiment. The flowchart which shows control of the repulsive force adjustment apparatus in 1st Embodiment. The figure which divided the slope by the relationship with the repulsive force adjustment apparatus in 2nd Embodiment. FIG. 14A to FIG. 14B are diagrams showing the correspondence relationship between the slope and the expansion and contraction of the repulsive force adjusting member. The figure which shows the example of arrangement | positioning of the pressure sensor in 2nd Embodiment. The figure which shows the correspondence of the detection pressure and the state of a moving path in 2nd Embodiment. The flowchart which shows control of the repulsive force adjustment apparatus in 2nd Embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. Also, not all of the configurations described below are essential constituent requirements of the present invention.

1. First Embodiment [Structure and Operation of Repulsive Force Adjustment Device]
FIG. 1 is a block diagram of a repulsive force adjusting apparatus 10 according to the first embodiment. As shown in FIG. 1, the repulsive force adjustment device 10 according to the first embodiment includes a pressure sensor 20, a CPU 40, a motor 50, and a resin plate 60. The repulsive force adjusting device 10 includes a battery that supplies power to these blocks, but is not shown in FIG.

  Here, the pressure sensor 20 corresponds to a detection unit, the CPU 40 corresponds to a control unit, the motor 50 corresponds to a drive unit, and the resin plate 60 corresponds to a repulsive force adjusting member. The repulsive force adjusting device 10 of the present embodiment is a shoe repulsive force adjusting device used to adjust the repulsive force of a shoe.

  First, the resin plate 60 that is a repulsive force and a repulsive force adjusting member will be described. The repulsive force of a shoe is one of the performance characteristics of a shoe, and is the force by which the shoe is repelled from the ground. When a foot of a shoe user, that is, a person wearing a shoe, lowers the raised foot to the ground, the shoe kicks the ground, and a reaction force is obtained as a reaction. If the repulsive force of the shoes is strong, the user can get a strong driving force, so the mobility is enhanced.

  Here, in order to reduce the impact on the foot, a cushion material is generally used at the bottom of the shoe. The cushion material works to absorb and weaken the repulsive force. On the other hand, when the shoe touches the ground, the shoe deforms. After that, the force of returning the shoe acts to increase the repulsive force. For example, if the rigidity of a shoe is increased, it becomes difficult to deform, but it can be said that the rebound force increases because the force to return to the original increases accordingly. In addition, when a material having a high elastic modulus such as rubber is used for the shoe sole, it is considered that the repulsive force is increased because the force to return to the original after deformation is increased.

  Therefore, as a member used for adjusting the repulsive force, that is, a repulsive force adjusting member, a member that changes shock absorption, a member that changes rigidity, and a member that changes the elasticity of the shoe sole can be used. Here, for the purpose of improving the mobility of shoes, it is suitable to select a member that changes the rigidity in order to dynamically change the repulsive force.

  In the repulsive force adjusting device 10 of the first embodiment, the resin plate 60 that is a plate-like resin is used as the repulsive force adjusting member. For example, a metal plate or the like may be used, but the resin plate 60 is suitable for a repulsive force adjusting member because it is generally lightweight, inexpensive, and easy to process.

  The repulsive force adjusting device 10 of the present embodiment includes a container (not shown) that can accommodate the resin plate 60 as described later. The portion of the resin plate 60 taken out from the container is integrated with the shoe sole. However, since the resin plate 60 is harder than the shoe material, the rigidity of the shoe increases and the repulsive force increases. On the other hand, when completely contained in the container, it returns to the rigidity of the original shoe itself and returns to the repulsive force of the shoe itself. That is, the repulsive force of the shoe can be adjusted depending on how much the resin plate 60 is taken out of the container.

  Note that the rigidity can be changed by changing the shape of the resin plate 60 instead of taking the resin plate 60 out of the container as in the present embodiment. For example, the rigidity increases as the resin plate 60 becomes thicker. Since the resin plate 60 has a foldable shape or an accordion structure, the resilience can be adjusted by changing the rigidity of the shoe without a container.

  Next, the pressure sensor 20, the CPU 40, and the motor 50 will be described. All of these are used for judging and executing how much the resin plate 60 is taken out of the container. The pressure sensor 20 detects a pressure based on a user's operation. Specifically, the pressure applied to the shoe sole when the user's raised foot is lowered to the ground is detected. As will be described later, the detected pressure varies depending on the state of the moving path.

  The CPU 40 receives the pressure value detected by the pressure sensor 20. In FIG. 1, signal 120 corresponds. Then, the signal 120 is sampled to obtain a pressure measurement value P. The pressure measurement value P is used to determine the state of the moving path. For example, when the pressure measurement value P is included in a predetermined range, the user can determine that the user is running on a straight road (straight road). Further, when the pressure measurement value P is included in another predetermined range, the user can determine that the user is running on a curved road (curved road).

  CPU40 judges how much the resin board 60 should be taken out of a container according to the state (for example, straight road, curved road) of a movement path. Then, the motor 50 is instructed how much to rotate in which direction.

  Further, the CPU 40 can grasp the change in pressure by comparing the current and past pressure measurement values P. Then, it may be determined whether the resin plate 60 should be gradually accommodated in the container or whether the resin plate 60 should be gradually removed from the container depending on whether the pressure is increasing or decreasing. In this case as well, the motor 50 is instructed how much to rotate in which direction.

  The motor 50 receives an instruction for the rotation direction and the rotation amount from the CPU 40. In FIG. 1, signal 140 corresponds. The motor 50 rotates the rotating shaft of the motor based on the signal 140. In the repulsive force adjusting device 10 of the present embodiment, a roller is attached to the rotating shaft as will be described later, and the resin plate 60 can be moved by the frictional force.

  FIG. 2 is a perspective view of the shoe 1 including the repulsive force adjusting device 10 of the present embodiment. For convenience of explanation, a part of the shoe 1 is shown transparent so that the repulsive force adjusting device 10 can be seen. However, in the actual shoe 1, the repulsive force adjusting device 10 may not be visible from the outside. Further, although a part of the container 70 is made transparent so that the CPU 40 and the motor 50 can be seen, the actual container 70 may be opaque.

  The same elements as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted. In addition, in this example, the pressure sensor 20 is provided on the outer surface of the container 70 and facing the bottom of the shoe 1, and the illustration thereof is omitted. The pressure sensor 20 may be on the same surface as the CPU 40 and the motor 50.

  The shoe 1 of FIG. 2 is an athletic shoe and includes a repulsive force adjusting device 10. In FIG. 2, only the right foot side is illustrated as the shoe 1, but it is assumed that a left foot side that is symmetric is also present. The left foot side of the shoe 1 includes the repulsive force adjusting device 10 that is the same as that shown in FIG. 2 or a repulsive force adjusting device 10 that is configured symmetrically with respect to a line connecting the toe and the heel. In this example, the shoes 1 are sports shoes, but may be walking shoes, commuting shoes, boots, or the like.

  In this embodiment, the repulsive force adjusting device 10 is configured as an insole (not shown) of the shoe, and is placed inside the shoe so as to contact the bottom of the shoe. At this time, only by inserting the insole including the repulsive force adjusting device 10 into the shoe, the user can obtain an appropriate repulsive force according to the state of the road regardless of the type of shoe. In other words, it is possible to improve the mobility of any shoe.

  The repulsive force adjusting device 10 is not configured as an insole for shoes, but may be embedded in the bottom of the shoe 1 at the time of manufacture. At this time, the shoe 1 automatically adjusts the repulsive force according to the condition of the road without the user being aware of the presence of the repulsive force adjusting device 10 or performing an operation such as inserting an insole.

  In the repulsive force adjusting device 10 in FIG. 2, the motor 50 rotates in response to an instruction from the CPU 40. When the motor 50 rotates, the roller 52 provided on the rotation shaft of the motor 50 also rotates. The roller 52 and the resin plate 60 are in contact with each other, and the resin plate 60 is accommodated in the container 70 according to the rotation of the roller 52 by the frictional force, or conversely comes out of the container 70. That is, the CPU 40 can change the size of the portion of the resin plate 60 accommodated in the container 70 by causing the motor 50 to move the resin plate 60 toward the container 70 or away from the container 70.

  3 (A) to 3 (B) are cross-sectional views taken perpendicularly to the bottom of the shoe along lines connecting the centers of the toe portion and the heel portion in the shoe 1 of FIG. . Then, the expansion and contraction of the resin plate 60, that is, the change in the size of the portion accommodated in the container 70 will be described with reference to FIGS. The expansion and contraction of the resin plate 60 does not mean that the resin plate 60 itself expands and contracts.

  FIGS. 3A to 3B show a state in which the pressure sensor 20 is provided in a portion of the side surface of the container 70 facing the bottom of the shoe. When the user steps on the foot, the pressure sensor 20 detects the pressure. The CPU 40 receives the pressure value detected by the pressure sensor 20 and determines the state of the moving path. At this time, the CPU 40 can also determine the state of the user (for example, whether the user is running or walking) based on the pressure value.

  Then, the CPU 40 rotates the motor 50 so that a repulsive force corresponding to the state of the moving path is obtained. The rotation of the motor 50 is transmitted to the roller 52. The roller 52 and the resin plate 60 are in contact with each other, and the friction force causes the resin plate 60 to move in a direction approaching the container 70, that is, a direction in which the resin plate 60 is accommodated, or away from the container 70, that is, a direction in which the resin plate 60 exits. .

  FIG. 3A shows a state in which the CPU 40 minimizes the portion of the resin plate 60 that is accommodated in the container 70. At this time, the resin plate 60 integrated with the shoe sole portion maximizes the rigidity of the shoe sole. That is, the resin plate 60 that is harder than the member of the shoe sole has the highest rigidity because the area in contact with the shoe sole portion is the largest. At this time, the repulsive force becomes the strongest, and the strong driving force can be obtained, so the mobility is enhanced.

  On the other hand, FIG. 3B shows a state in which the CPU 40 maximizes the portion of the resin plate 60 that is accommodated in the container 70. At this time, the resin plate 60 is not in contact with the shoe sole portion and has low rigidity. At this time, since the repulsive force becomes small, it takes a long time for the ground and the shoe 1 to come into contact with each other, and the user can feel the feel of the ground most on the soles of the feet. For this reason, it is possible to obtain an effect that it is easy to bend the curve and is difficult to slip.

  The repulsive force adjusting device 10 of the present embodiment can take either the state of FIG. 3A or the state of FIG. 3B, and can take an intermediate state between them. 3A to 3B, the repulsive force adjusting device 10 according to the present embodiment has a container 70 on the toe side, and the resin plate 60 extends in the direction of the heel to exert a repulsive force. It may be arranged in reverse. That is, the container 70 may be on the heel side, and the resin plate 60 may extend in the toe direction to increase the repulsive force.

[Application example of repulsive force adjustment device]
As an application example of the repulsive force adjusting apparatus 10 of the present embodiment, land sprint running is conceivable. FIG. 4 is a diagram showing a short-distance running track 80, that is, a running path, in relation to the repulsive force adjusting device 10 of the present embodiment. In FIG. 4, it is assumed that the track 80 is viewed from above, and the runner runs the track 80 counterclockwise as indicated by an arrow.

  The track 80 includes Z1 that is a zone made of a straight road and Z3 that is a zone made of a curved road. And Z2 which is a zone which changes from a straight road to a curved road, and Z4 which is a zone which changes from a curved road to a straight road are included. In a broad sense, the zone Z2 is included in the straight road, and the zone Z4 is included in the curved road.

  FIGS. 5A to 5D are diagrams showing the relationship between the zones Z1 to Z4 of the track 80 in FIG. 4 and the optimum repulsive force. Here, as described above, the repulsive force varies depending on the expansion and contraction of the resin plate 60, that is, the size of the portion of the resin plate 60 accommodated in the container 70. 5A to 5D show the correspondence between the zones Z1 to Z4 and the expansion and contraction of the resin plate 60 in the repulsive force adjusting device 10. The same elements as those in FIGS. 1 to 4 are denoted by the same reference numerals and description thereof is omitted.

  FIG. 5A shows the optimum expansion and contraction of the resin plate 60 in the zone Z <b> 1 of the track 80. As shown in FIG. 5A, in the zone Z1 that is a straight road, it is preferable that the repulsive force is maximized and the user obtains the strongest driving force. That is, as described with reference to FIG. 3A, the CPU 40 preferably minimizes the portion of the resin plate 60 that is accommodated in the container 70.

  FIG. 5B shows the optimum expansion and contraction of the resin plate 60 in the zone Z <b> 2 of the track 80. As shown in FIG. 5B, in the zone Z2 that changes from a straight road to a curved road, it is preferable that the repulsive force is gradually weakened so that the user does not go out of the course. Specifically, the CPU 40 instructs the roller 52 to rotate clockwise on the paper surface. And the part accommodated in the container 70 among the resin plates 60 is enlarged gradually. At this time, the rotation speed of the roller 52 may be fixed (for example, half rotation by one instruction), or the rotation speed may increase or decrease with time.

  FIG. 5C shows the optimal expansion and contraction of the resin plate 60 in the zone Z <b> 3 of the track 80. As shown in FIG. 5C, in the zone Z3, which is a curved road, it is preferable to minimize the repulsive force and lengthen the time for the ground and shoes to contact each other. At this time, the user can feel the feel of the ground most on the sole of the foot, and the curve is easy to bend. Also, slipping and course out can be prevented. That is, as described with reference to FIG. 3B, the CPU 40 preferably maximizes the portion of the resin plate 60 that is accommodated in the container 70.

  FIG. 5D shows the optimal expansion and contraction of the resin plate 60 in the zone Z 4 of the track 80. As shown in FIG. 5D, in the zone Z4 that changes from a curved road to a straight road, the repulsive force is gradually increased so that the user can obtain a strong driving force on the straight road while preventing the user from going out of the course. It is preferable to prepare. Specifically, the CPU 40 instructs the roller 52 to rotate counterclockwise on the page. And the part accommodated in the container 70 among the resin plates 60 is made small gradually. At this time, the rotation speed of the roller 52 may be fixed (for example, half rotation by one instruction), or the rotation speed may increase or decrease with time.

[Detection by pressure sensor]
In this application example, it is necessary that the pressure sensor 20 detects the zones Z1 to Z4 of the track 80 as a difference in pressure, and the CPU 40 determines correctly. FIG. 6A shows the arrangement of the pressure sensor 20 in the repulsive force adjusting device 10 of the present embodiment using a plan view of the shoe 1 (a plan view of the insole of the shoe in the present embodiment). As shown in FIG. 6A, the pressure sensor 20 includes a pressure receiving portion 24, an introduction path 26, and a pressure sensor element 100. The pressure sensor element 100 outputs the detected pressure value to the CPU 40 via a signal line (not shown).

  6A represents the approximate position of the user's foot. In general, when running, strong pressure is applied around the thumb ball, which is the base of the big toe. Then, the position of the center of gravity of the body changes due to the change of the movement path, and the place where strong pressure is applied changes. As will be described later, when running on a straight road, strong pressure is applied not only to the thumb ball but also to the base of the little toe of the foot. However, when turning a left curve, the body tilts to the left, so that little pressure is applied to the base of the little finger of the right foot, for example.

  Therefore, in the repulsive force adjusting device 10 of the present embodiment, the pressure receiving portion 24 of the pressure sensor 20 is disposed at the base of the finger including the thumb ball, and this change in pressure is detected. The pressure receiving part 24 is filled with, for example, a liquid, and the liquid passes through the introduction path 26 and pushes a diaphragm of the pressure sensor element 100. Therefore, the change in pressure can be detected accurately. In FIG. 6A, the pressure sensor element 100 is disposed away from the pressure receiving unit 24. However, if the pressure sensor element 100 has sufficient strength, the pressure sensor element 100 may be provided near the pressure receiving unit 24, for example, on the upper surface, the lower surface, or the side surface of the pressure receiving unit 24.

  In order to detect a change in pressure at the base of the toe, a plurality of pressure sensors may be arranged as shown in FIG. For example, in order to detect the pressure of the thumb ball, a first pressure sensor including the pressure receiving portion 24A, the introduction path 26A, and the pressure sensor element 100A is disposed. In order to detect the pressure at the base of the index finger of the foot, a second pressure sensor including the pressure receiving portion 24B, the introduction path 26B, and the pressure sensor element 100B is disposed. Further, in order to detect the pressure at the base of the little toe of the foot, a third pressure sensor composed of the pressure receiving portion 24C, the introduction path 26C, and the pressure sensor element 100C is disposed.

  Then, the CPU 40 receives the pressure values detected from the three pressure sensors and compares them, so that the pressure change can be captured more directly. However, since a plurality of sensors are used, the cost is higher than that of the repulsive force adjusting apparatus 10 of the present embodiment. Therefore, it is preferable to use one pressure sensor as in this embodiment.

  FIG. 7A to FIG. 7B are diagrams showing a correspondence relationship between a track zone (here, only Z1 and Z3) and a high pressure region 25 in the pressure receiving unit 24. FIG. In addition, although the illustration about the left foot side shoes is omitted because it is the same or bilaterally symmetric, the high pressure region 25 in the pressure receiving unit 24 may be left-right asymmetric. Therefore, in FIG. 7A to FIG. 7B, the shoe 1L on the left foot side is also shown and described.

  7A to 7B, the same elements as those in FIGS. 1 to 6B are denoted by the same reference numerals and description thereof is omitted. Further, the pressure receiving portion 24L, the high pressure region 25L, the introduction path 26L, and the pressure sensor element 100L in the shoe 1L on the left foot side correspond to elements of the shoe 1 on the right foot side, excluding the subscript L. Therefore, explanation is omitted.

  7A shows a region 25 where the pressure is high at the pressure receiving portion 24 of the shoe 1 and a region 25L where the pressure is high at the pressure receiving portion 24L of the shoe 1L in the zone Z1 (see FIG. 4) of the track 80. As shown in FIG. 7A, in the zone Z1, which is a straight road, the shoe user uses the kicking of the ground from the thumb side to the little finger side of the foot. Therefore, the areas 25 and 25L (areas shown in black) are generated in a wide range from the thumb side to the little finger side. Then, a large amount of liquid is sent to the pressure sensor elements 100 and 100L via the introduction paths 26 and 26L, and a large pressure is applied to the diaphragm (see pressure P in FIG. 10).

  On the other hand, FIG. 7B shows a high pressure region 25 at the pressure receiving portion 24 of the shoe 1 and a high pressure region 25L at the pressure receiving portion 24L of the shoe 1L in the zone Z3 (see FIG. 4) of the track 80. . As shown in FIG. 7B, in the zone Z3, which is a curved road, the shoe user tilts his / her body to the left side, so that regions 25 and 25L with high pressure are generated biased to the left in the traveling direction. That is, in the pressure receiving part 24 of the shoe 1, a high pressure area 25 is formed only on the thumb ball part. In the pressure receiving part 24L of the shoe 1L, a high pressure region 25L is formed only at the base of the little toe of the foot. At this time, as compared with the case of the zone Z1 in FIG. 7A, less liquid is sent to the pressure sensor elements 100 and 100L via the introduction paths 26 and 26L, and the pressure applied to the diaphragm is relatively small.

  In the zone Z2 (see FIG. 4) of the track 80, the pressure applied to the diaphragm decreases with time, and in the zone Z4, the pressure applied to the diaphragm increases with time. When the CPU 40 grasps the magnitude of the pressure and the change in the pressure, it is possible to determine which zone of the track 80 is running, that is, the state of the moving path.

  FIG. 8 is a schematic diagram of a cross section of the pressure sensor element 100 of the present embodiment. FIG. 9 is a bottom view schematically showing the resonator element 220 and the diaphragm 210 of the pressure sensor element 100 of the present embodiment. In FIG. 9, the base 230 as a sealing plate is omitted. FIG. 8 corresponds to a cross section taken along line AA of FIG.

  The pressure sensor element 100 includes a diaphragm 210, a vibrating piece 220, and a base 230 as a sealing plate.

  The diaphragm 210 is a flat plate-like member having a flexible part that receives pressure and bends. The outer surface of the diaphragm 210 is a pressure receiving surface 214, and a pair of protrusions 212 are formed on the back side of the pressure receiving surface 214.

  The vibration piece 220 includes a vibration beam (beam) 222 and a pair of base portions 224 formed at both ends of the vibration beam 222. The vibrating beam 222 is formed between the pair of base portions 224 in a doubly supported beam shape. The pair of base portions 224 are fixed to a pair of protrusions 212 formed on the diaphragm 210, respectively. The vibration beam 222 is appropriately provided with an electrode (not shown), and the vibration beam 222 can be bent and vibrated at a constant resonance frequency by supplying a drive signal from the electrode. The vibrating piece 220 is formed of a piezoelectric material. Examples of the material of the vibrating piece 220 include piezoelectric materials such as quartz, lithium tantalate, and lithium niobate. The vibration piece 220 is supported by the frame portion 228 by the support beam 226.

  The base 230 is joined to the diaphragm 210 to form a cavity 232 with the diaphragm 210. By using the cavity 232 as a decompression space, the Q value of the resonator element 220 can be increased (the CI value can be reduced).

  In the pressure sensor element 100 having such a structure, the diaphragm 210 bends and deforms when pressure is applied to the pressure receiving surface 214. Then, since the pair of base portions 224 of the vibrating piece 220 are respectively fixed to the pair of protrusions 212 of the diaphragm 210, the distance between the base portions 224 changes according to the deformation of the diaphragm 210. That is, when pressure is applied to the pressure sensor element 100, tensile or compressive stress can be generated in the vibration beam 222.

  FIG. 10 is a schematic diagram of a cross section of the pressure sensor element 100 and shows a state in which the diaphragm 210 is deformed by the pressure P. FIG. FIG. 10 shows an example in which the deformation of the diaphragm 210 convex toward the inside of the element is caused by the action of the pressure (pressure P) from the outside to the inside of the pressure sensor element 100. In this case, the interval between the pair of protrusions 212 is increased. On the other hand, although not shown, when a force from the inside to the outside of the pressure sensor element 100 acts, the diaphragm 210 is deformed so as to protrude toward the outside of the element, and the distance between the pair of protrusions 212 becomes small. . Accordingly, tensile or compressive stress is generated in a direction parallel to the vibration beam 222 of the vibration piece 220 whose both ends are fixed to the pair of protrusions 212. In other words, the pressure applied in the direction perpendicular to the pressure receiving surface 214 is converted into stress in a linear direction parallel to the vibration beam 222 of the vibration piece 220 via the protrusion (support portion) 212.

  The resonance frequency of the vibration beam 222 can be analyzed as follows. As shown in FIGS. 8 and 9, when the length of the vibration beam 222 is l, the width is w, and the thickness is d, the equation of motion when the force F acts in the long side direction of the vibration beam 222 is as follows: It is approximated by (1).

In equation (1), E is the longitudinal elastic constant (Young's modulus), ρ is the density, A is the cross-sectional area of the vibrating beam (= w · d), g is the gravitational acceleration, F is the external force, y is the displacement, and x is the vibration. Each arbitrary position of the beam is represented.

  By solving the equation (1) by giving a general solution and boundary conditions, the following equation (2) of the resonance frequency when there is no external force is obtained.

Second moment ^{I =} dw 3/12, the cross-sectional area A = dw, from λI = 4.73, equation (2) can be modified as the following equation (3).

Accordingly, the resonance frequency f ₀ when the force F = 0 is proportional to the beam width w and inversely proportional to the square of the length l.

When the resonance frequency f _F when the force F is applied to the two oscillating beams is obtained in the same procedure, the following equation (4) is obtained.

Second moment I = ^dw 3/12 from equation (4) can be modified as the following equation (5).

In the formula (5), SF represents stress sensitivity (= K · 12 / E · (l / w) ² ), and σ represents stress (= F / (2A)).

From the above, when the force F acting on the pressure sensor element 100 is negative in the compression direction and positive in the expansion direction, the resonance frequency f _F decreases when the force F is applied in the compression direction, and the force F is expanded and contracted. When added, the resonance frequency f _F increases.

  And the linearity error resulting from the pressure-frequency characteristic and the temperature-frequency characteristic of the pressure sensor element 100 is corrected using the polynomial shown in the following equation (6), thereby obtaining the pressure P with high resolution and high accuracy. be able to.

In Expression (6), f _n is a sensor normalized frequency, and is represented by f _n = (f _F / f ₀ ) ² . Further, t is a temperature, and α (t), β (t), γ (t), and δ (t) are expressed by the following equations (7) to (10), respectively.

In Expressions (7) to (10), a to p are correction coefficients.

That is, by measuring the frequency of the output signal of the pressure sensor element 100, the vibration frequency of the vibration beam 222 (resonance frequency f _F when the force F is applied) is obtained, and the resonance frequency f ₀ measured in advance or the correction is corrected. The pressure P can be calculated from the equation (6) using the coefficients a to p.

[Judgment by CPU]
The CPU 40 receives the pressure value detected by the pressure sensor 20. In the present embodiment, it is assumed that the CPU 40 receives a pressure value (hereinafter referred to as a pressure measurement value P) sampled at an appropriate timing.

  FIG. 11 is a diagram illustrating a correspondence relationship between the detected pressure value and the state of the moving path in the present embodiment. As shown in FIG. 11, the CPU 40 determines that the user is running on a curved road if the pressure measurement value P is greater than or equal to Pth0 and less than Pth1. Further, the CPU 40 determines that the user is running on a straight road if the pressure measurement value P is equal to or greater than Pth1. And you may control rotation of the motor 50 according to the state of the judged moving path (refer FIG. 5 (A)-FIG. 5 (D)). 11 and 12, the straight road includes not only the zone Z1 in FIG. 4 but also the zone Z2, and the curved road in FIG. 11 includes not only the zone Z3 in FIG. 4 but also the zone Z4.

  For example, the CPU 40 may grasp the decreasing tendency of the pressure from the temporal change of the pressure measurement value P and control the rotation of the motor 50 so that the resin plate 60 is gradually accommodated in the container (FIG. 5B). )reference). Further, the CPU 40 may grasp the increasing tendency of the pressure and control the rotation of the motor 50 so as to gradually pull out the resin plate 60 from the container (see FIG. 5D).

  Note that the correspondence relationship between the detected pressure value and the state of the moving path is not limited to the example of FIG. For example, depending on the location where the pressure receiving unit 24 is disposed, when the user is running on a straight road, the pressure may be lower than when the user is running on a curved road. Further, the CPU 40 of the repulsive force adjusting apparatus 10 of the present embodiment does not change the rotation control of the motor 50 particularly when the pressure measurement value P is less than Pth0, but performs control such that the resin plate 60 is pulled out from the container to the maximum extent. You may go.

[flowchart]
FIG. 12 is a flowchart of the control executed by the CPU 40 of the repulsive force adjusting apparatus 10 according to this embodiment. The pressure measurement value P and the threshold values Pth0 and Pth1 in FIG. 12 are the same as described above.

  The CPU 40 receives the pressure measurement value P from the pressure sensor element 100 (S2). And it compares with the pressure measurement value received before the pressure measurement value P (henceforth, the pressure measurement value received before) (S4). Here, the pressure measurement value received previously may be stored in a storage area inside the CPU 40, or may be stored in storage means accessible by the CPU 40 included in the repulsive force adjustment device 10. Moreover, the pressure measurement value received previously may be one immediately before or may be plural.

  The CPU 40 determines the tendency of the pressure change by comparing the pressure measurement value P with the previously received pressure measurement value (S6). Here, the value of the pressure measurement value itself received before may be used for comparison, or may be used after being subjected to statistical processing. As statistical processing, for example, several previous pressure measurements may be averaged.

  If the pressure has not changed, the CPU 40 maintains the current shoe state (S6: no change). That is, the CPU 40 does not rotate the motor 50 and does not move the resin plate 60.

  If the pressure has increased, the CPU 40 determines that the user is running or has run on a moving road that changes from a curved road to a straight road (S6: increase).

  At this time, if the pressure measurement value P is not less than Pth0 and less than Pth1 (S10: Y), the CPU 40 controls the motor 50 to extend the resin plate 60 by a predetermined amount (S12). At this time, the CPU 40 determines that the user is running in the zone Z4 in FIG. 4 and gradually increases the repulsive force so as to obtain a strong driving force on the straight road. Referring to FIG. 5D, extending the resin plate 60 by a predetermined amount corresponds to the CPU 40 instructing the motor 50 to rotate the roller 52 counterclockwise a predetermined number of times.

  Here, the expression of extending or contracting the resin plate 60 is used, but extending the resin plate 60 means that the resin plate 60 is taken out of the container 70. In addition, shrinking the resin plate 60 means accommodating in the container 70.

  If the pressure measurement value P is not less than Pth0 and less than Pth1 (S10: N), the CPU 40 compares the pressure measurement value P with Pth1. If the pressure measurement value P is equal to or greater than Pth1 (S20: Y), the CPU 40 controls the motor 50 to extend the resin plate 60 to the maximum (S22). At this time, the CPU 40 determines that the user has reached the zone Z1 of FIG. 4, which is a straight road, and maximizes the repulsive force so that the user can obtain the strongest driving force. If the resin plate 60 has already extended to the maximum, the CPU 40 may omit the process of S22 (not shown).

  If the pressure measurement value P tends to increase but is less than Pth0 (S20: N), the CPU 40 determines that the user is not running, for example, is walking slowly in the zone Z4 in FIG. To do. At this time, the CPU 40 does not rotate the motor 50 and does not move the resin plate 60.

  Again, the CPU 40 returns to step S6 where the change in pressure is detected. If the pressure has decreased, the CPU 40 determines that the user is or has traveled on a moving path that changes from a straight road to a curved road (S6: decrease).

  At this time, if the pressure measurement value P is equal to or greater than Pth1 (S30: Y), the CPU 40 controls the motor 50 to shrink the resin plate 60 by a predetermined amount (S32). At this time, the CPU 40 determines that the user is running in the zone Z2 of FIG. 4, and gradually weakens the repulsive force so that the user does not overrun the course. Referring to FIG. 5B, shrinking the resin plate 60 by a predetermined amount corresponds to the CPU 40 instructing the motor 50 to rotate the roller 52 clockwise by a predetermined number of times.

  If the pressure measurement value P is not equal to or greater than Pth1 (S30: N), the CPU 40 compares the pressure measurement value P with Pth0. If the pressure measurement value P is equal to or greater than Pth0 and less than Pth1 (S40: Y), the CPU 40 controls the motor 50 to shrink the resin plate 60 to the maximum (S42). At this time, the CPU 40 determines that the user has reached the zone Z3 in FIG. 4, which is a curved road, and minimizes the repulsive force so that the user can easily turn the curve. If the resin plate 60 has already shrunk to the maximum, that is, if the resin plate 60 has already been accommodated in the container, the CPU 40 may omit the process of S42 (not shown).

  If the pressure measurement value P tends to decrease but is less than Pth0 (S40: N), the CPU 40 determines that the user is not running, for example, a state where the user is slowly walking in the zone Z2 in FIG. To do. At this time, the CPU 40 does not rotate the motor 50 and does not move the resin plate 60.

  As described above, in the repulsive force adjusting apparatus 10 according to the present embodiment, the CPU 40 determines the state of the road on which the user moves based on the pressure measurement value P, and the shoe rebounds according to the road state such as a curved road or a straight road. The repulsive force can be adjusted automatically.

2. Second Embodiment [Structure and Operation of Repulsive Force Adjustment Device]
Unlike the case of the first embodiment, the repulsive force adjustment device of the second embodiment can detect the state of the road in the height direction. Here, the block diagram of the repulsive force adjusting apparatus of the second embodiment is the same as that of the first embodiment (see FIG. 1). Moreover, it is comprised as an insole of shoes similarly to 1st Embodiment, and is set | placed inside the shoes 1A so that the bottom part of shoes may be contact | connected (refer FIG. 2). In addition, the repulsive force adjustment apparatus of 2nd Embodiment may not be comprised as an insole of shoes, but may be embedded at the bottom part of 1 A of shoes at the time of manufacture. The repulsive force adjusting device of the second embodiment also changes the repulsive force by expanding and contracting the resin plate in the shoe 1A according to the moving path of the user (see FIGS. 3A to 3B).

[Application example of repulsive force adjustment device]
The repulsive force adjustment device 10A (see FIGS. 14A to 14B) of the present embodiment can be applied to, for example, mountain climbing shoes suitable for mountain climbing.

  FIG. 13 shows how the shoe 1A including the repulsive force adjustment device 10A (see FIGS. 14A to 14B) of the second embodiment moves uphill and downhill. The uphill is zone Z5 and the downhill is zone Z6. When the user of the shoe 1A moves the terrain of FIG. 13 from the left side to the right side of the drawing, pressure is applied to the toe side of the shoe 1A in the zone Z5, and pressure is applied to the heel side in the zone Z6. Further, comparing these, a stronger pressure is applied in the zone Z6 which is a downhill.

  The CPU 40 (see FIGS. 14A to 14B) of the repulsive force adjusting apparatus 10A determines whether the user is walking in the zone Z5 or the zone Z6 based on the pressure value. Then, the resin plate 60 (see FIGS. 14A to 14B) is expanded and contracted based on the determined state of the moving path (uphill, downhill).

  FIGS. 14A to 14B are diagrams showing the relationship between the zone Z5 to zone Z6 of FIG. 13 and the optimum repulsive force. In addition, the same code | symbol is attached | subjected to the same element as FIG. 5 (A)-FIG.5 (D), and description is abbreviate | omitted. Further, the pressure receiving portion of the pressure sensor 20 in the heel portion is not shown.

  FIG. 14A shows the optimum expansion and contraction of the resin plate 60 in the zone Z5 of FIG. As shown in FIG. 14A, in zone Z5 that is an uphill, it is preferable that the repulsive force is maximized so that the user can obtain a strong driving force and can easily climb the slope.

  At this time, the CPU 40 instructs to rotate the roller 52 counterclockwise on the paper surface. And the part accommodated in the container 70 among the resin plates 60 is minimized.

  FIG. 14B shows the optimum expansion and contraction of the resin plate 60 in the zone Z6 of FIG. As shown in FIG. 14B, in the zone Z6, which is a downhill, it is preferable to minimize the repulsive force and reduce the impact received by the user's foot. Further, it is preferable to minimize the repulsive force and lengthen the time for the ground and the shoe to contact to prevent the user from slipping down.

  At this time, the CPU 40 instructs the roller 52 to rotate clockwise on the paper. Then, the resin plate 60 is accommodated in the container 70.

[Detection by pressure sensor]
In this application example, it is necessary that the pressure sensor 20 detects the zones Z5 to Z6 (uphill and downhill) in FIG. 13 as pressure differences, and the CPU 40 correctly determines. FIG. 15 shows the arrangement of the pressure sensor 20 in the repulsive force adjusting apparatus 10A of the present embodiment using a plan view of the shoe 1A (in this embodiment, a plan view of the insole of the shoe). As shown in FIG. 15, the pressure sensor 20 includes pressure receiving portions 24 </ b> T and 24 </ b> H, introduction paths 26 </ b> T and 26 </ b> H, and the pressure sensor element 100. The pressure sensor element 100 outputs the detected pressure value to the CPU 40 via a signal line (not shown).

  The virtual foot molds 82T and 82H in FIG. 15 represent the approximate positions of the user's toes and heels, respectively. As described above, pressure is applied to the toe side of the shoe 1A in the zone Z5 in FIG. 13, and pressure is applied to the heel side in the zone Z6. Further, a stronger pressure is applied in the zone Z6 which is a downhill.

  Therefore, in the repulsive force adjusting device 10A of the present embodiment, the pressure receiving portion of the pressure sensor 20 is divided into a pressure receiving portion 24T on the toe side and a pressure receiving portion 24H on the heel side. As in the first embodiment, the pressure receiving portions 24T and 24H are filled with, for example, liquid, and push the diaphragm of the pressure sensor element 100 through the introduction paths 26T and 26H, respectively. Therefore, the change in pressure can be detected accurately. In FIG. 15, the pressure sensor element 100 is arranged away from the pressure receiving portions 24T and 24H. However, the pressure sensor element 100 may be provided on the upper surface, the lower surface, or the side surface of the pressure receiving unit 24T or the pressure receiving unit 24H as long as it has sufficient strength.

  Note that the specific structure of the pressure sensor element 100 is the same as that of the first embodiment, and a description thereof will be omitted.

[Judgment by CPU]
The CPU 40 receives the pressure value detected by the pressure sensor element 100. Also in this embodiment, it is assumed that the CPU 40 receives a pressure measurement value P that is a pressure value sampled at an appropriate timing.

  FIG. 16 is a diagram illustrating a correspondence relationship between the detected pressure value and the state of the moving path in the present embodiment. As shown in FIG. 16, the CPU 40 determines that the user is walking uphill if the pressure measurement value P is greater than or equal to Pth2 and less than Pth3. Further, the CPU 40 determines that the user is walking downhill if the pressure measurement value P is Pth3 or more. Then, the rotation of the motor 50 may be controlled in accordance with the determined state of the moving path (see FIGS. 14A to 14B).

  Note that the correspondence relationship between the detected pressure value and the state of the moving path is not limited to the example of FIG. For example, depending on the location where the pressure receiving units 24T and 24H are arranged and the sizes of the pressure receiving unit 24T and the pressure receiving unit 24H, when the user is walking downhill, the pressure is lower than when the user is walking uphill. It can also be shown. Further, the CPU 40 of the repulsive force adjusting apparatus 10A according to the present embodiment does not change the rotation control of the motor 50 particularly when the pressure measurement value P is less than Pth2, but performs control such that the resin plate 60 is pulled out from the container to the maximum extent. You may go.

  In this example, Pth0 in FIG. 16 is the same value as the threshold Pth0 described in the first embodiment, but may be irrelevant.

[flowchart]
FIG. 17 is a flowchart of the control executed by the CPU 40 of the repulsive force adjusting apparatus 10A of the present embodiment. Note that the pressure measurement value P and the threshold values Pth2 and Pth3 in FIG. 17 are the same as described above. The threshold value Pth0 is the same as that of the first embodiment, and the same steps as those in FIG.

  The CPU 40 receives the pressure measurement value P from the pressure sensor element 100 (S2). If the pressure measurement value P is not less than Pth2 and less than Pth3 (S50: Y), the CPU 40 controls the motor 50 to extend the resin plate 60 to the maximum (S52). At this time, the CPU 40 determines that the user is walking in the zone Z5 (uphill) in FIG. 13, and maximizes the repulsive force so that the user can obtain the strongest driving force.

  If the pressure measurement value P is not less than Pth2 and less than Pth3 (S50: N), the CPU 40 compares the pressure measurement value P with Pth0. If the pressure measurement value P is equal to or greater than Pth3 and less than Pth0 (S60: Y), the CPU 40 controls the motor 50 to shrink the resin plate 60 to the maximum (S62). At this time, the CPU 40 determines that the user is walking in the zone Z6 (downhill) in FIG. Then, the repulsive force is minimized to reduce the impact received by the user's foot, and the time for the contact between the ground and the shoes is lengthened to prevent the user from sliding down.

  If the pressure measurement value P is less than Pth2 or greater than Pth0, the CPU 40 determines that the user is not moving on the slope, for example, is not walking. At this time, the CPU 40 does not rotate the motor 50 and does not move the resin plate 60.

  As described above, in the repulsive force adjusting apparatus 10A of the present embodiment, the CPU 40 determines the state of the road on which the user moves based on the pressure measurement value P, and the shoes are in accordance with the road conditions such as uphill and downhill. The repulsive force can be adjusted automatically.

[Modification]
Note that the control executed by the CPU 40 of the repulsive force adjusting apparatus 10A of this embodiment may be executed in combination with the control of the first embodiment. That is, after S2 in FIG. 17, it is determined whether or not the pressure measurement value P is Pth0 or more. If Pth0 or more, the process follows the flowchart of the first embodiment (after S4 in FIG. 12). The flowchart according to the present embodiment (S50 and after in FIG. 17) is followed.

  At this time, even when the user runs on a straight road or a curved road, even when the user walks uphill or downhill, the repulsive force of the shoes can be automatically adjusted. The insole of a shoe including such a repulsive force adjusting device can be used for both mountaineering shoes and athletic shoes, and always provides an appropriate shoe repulsive force.

3. Others The present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). In addition, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. In addition, the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object. Further, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.

1 shoe, 1A shoe, 1L shoe, 10 repulsive force adjusting device, 10A repulsive force adjusting device, 20 pressure sensor, 24 pressure receiving portion, 24A pressure receiving portion, 24B pressure receiving portion, 24C pressure receiving portion, 24L pressure receiving portion, 24T pressure receiving portion, 24H Pressure receiving portion, 25 region, 25L region, 26 introduction path, 26A introduction path, 26B introduction path, 26C introduction path, 26L introduction path, 26T introduction path, 26H introduction path, 40 CPU, 50 motor, 52 roller, 60 resin plate, 70 container, 82 foot type, 82L foot type, 82T foot type, 82H foot type, 100 pressure sensor element, 100A pressure sensor element, 100B pressure sensor element, 100C pressure sensor element, 100L pressure sensor element, 120 signal, 140 signal, 210 Diaphragm, 212 Protrusion, 214 Pressure-receiving surface, 220 vibration Piece, 222 vibration beam, 224 base, 226 support beams, 228 frame portion, 230 base, 232 cavity

Claims (11)

A repulsive force adjusting member used for adjusting the repulsive force of the bottom of the shoe;
A drive unit for moving the repulsive force adjusting member;
A detection unit for detecting a physical quantity based on the action of the user of the shoe;
The state of the road on which the user moves is detected based on the physical quantity detected by the detecting unit, and the repulsive force adjusting member is moved by the driving unit, so that the bottom of the shoe has a repulsive force according to the state of the road. A repulsive force adjusting device including a control unit that adjusts so as to generate In claim 1,
Including a container containing at least a part of the repulsive force adjusting member;
The controller is
A repulsive force adjusting device that moves the repulsive force adjusting member toward the container or away from the container by the driving unit to change the size of the portion of the repulsive force adjusting member accommodated in the container. . In claim 2,
The controller is
When it is detected that the user is moving on the curved road based on the physical quantity detected by the detection unit, than when the user is detecting that the user is moving on other than the curved road by the driving unit. A repulsive force adjusting device that moves the repulsive force adjusting member so as to enlarge a portion of the repulsive force adjusting member accommodated in the container. In claim 3,
The controller is
When it is detected that the user is moving on a straight path based on the physical quantity detected by the detection unit, the drive unit minimizes the portion of the repulsive force adjustment member that is accommodated in the container. ,
When it is detected that the path traveled by the user is changing from a straight path to a curved path based on the physical quantity detected by the detection unit, the drive unit accommodates the repulsive force adjustment member in the container. Gradually increase the part to be
When it is detected that the path traveled by the user has changed from a curved path to a straight path based on the physical quantity detected by the detection unit, the drive unit accommodates the repulsive force adjustment member in the container. Repulsive force adjustment device that gradually reduces the portion to be applied. In any one of Claims 2 thru | or 4,
The controller is
When it is detected that the user is going down the hill based on the physical quantity detected by the detection unit, the repulsive force adjustment is performed more than when the user is detected that the user is going up the hill by the driving unit. A repulsive force adjusting device for enlarging a portion of the member accommodated in the container. In any one of Claims 1 thru | or 5,
The detector is
A repulsive force adjusting device including at least a pressure sensor. In claim 6,
The repulsive force adjusting device includes one pressure sensor included in the detection unit.   An insole for a shoe including the repulsive force adjusting device according to any one of claims 1 to 7.   A shoe comprising the insole of the shoe according to claim 8.   A shoe comprising the repulsive force adjusting device according to any one of claims 1 to 7. A repulsion comprising a repulsive force adjusting member that is a member used for adjusting the repulsive force of the bottom of the shoe, a drive unit that moves the repulsive force adjusting member, and a detecting unit that detects a physical quantity based on the action of the user of the shoe. A control method of a force adjusting device,
Detecting a state of a path on which the user moves based on a physical quantity detected by the detection unit;
Adjusting the repulsive force adjusting member by the driving unit so that the bottom of the shoe generates a repulsive force according to the condition of the road.