JP2015080618A - Exercise assisting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an exercise assisting device easily grasping whether the knee is bent in an appropriate angle.SOLUTION: An exercise assisting device 1 includes a footrest part 20, a lower-thigh angle regulation part 30 and a thigh angle regulation part 40. The footrest part 20 is for placing the sole of the foot of a user. The lower-thigh angle regulation part 30 is located upper than the footrest part 20, and is mounted on the footrest part 20 so as to get in touch with the lower-thigh of the user whose sole is placed on the footrest part 20. The thigh angle regulation part 40 is located at the back of the lower-thigh angle regulation part 30, and is mounted on the footrest part 20 so as to get in touch with the buttock and the thigh back side of the user whose sole is placed on the footrest part 20.

Description

  The present invention relates to an exercise assistance device.

  Conventionally, a device for assisting squat motion is known (for example, Patent Document 1).

JP 2010-259756 A

When performing a squat exercise using the exercise assisting device, it is difficult for the user to determine by himself whether the user's knee is bent to an appropriate angle.
The present invention was created based on the above background, and an object thereof is to provide an exercise assisting device that can easily grasp whether a knee is bent to an appropriate angle.

  The means includes: “a footrest portion on which a user's footrest is placed; and the footrest portion that is positioned above the footrest portion so as to be in contact with a user's lower leg on which the footrest is placed on the footrest portion. A crus angle restricting portion attached to the crus angle restricting portion, and the foot locating portion that is located behind the crus angle restricting portion and is capable of contacting at least one of a user's buttocks and a thigh rear surface on which the sole is placed. An exercise assisting device provided with a thigh angle restricting portion attached to the device.

  The exercise assisting device has a thigh angle restricting portion. For this reason, the user can easily grasp whether the knee is bent to an appropriate angle by bringing the thigh angle restricting portion into contact with at least one of the buttocks and the back of the thigh.

  This exercise assisting device can easily grasp whether the user is bending the knee to an appropriate angle.

The perspective view which shows the whole structure of the exercise assistance apparatus of embodiment. Sectional drawing which shows the cross-sectional structure which follows the D2-D2 line | wire of FIG. 1 of the tibial angle control part of embodiment. The block diagram which shows the electric constitution of the exercise assistance apparatus of embodiment. About the exercise assistance apparatus of embodiment, (a) is an operation | movement figure which shows the state which has applied the shin to the shin contact surface, (b) is an operation | movement figure in the state which has contacted the buttocks and the thigh back surface with the seat part. The schematic diagram which shows typically the relationship between the exercise assistance apparatus of embodiment and a user's leg. The schematic diagram displayed on the display part of embodiment. The schematic diagram displayed on the gravity center display part of embodiment. About the exercise assistance apparatus of embodiment, (a) is an operation | movement figure in the state which has contacted the buttocks and the thigh back surface with the seat, (b) is the buttocks when the height position of a seat is below (a) FIG. 6 is an operation diagram in a state where the back of the thigh is in contact with the seat. The schematic diagram which shows the tibial angle control part and thigh angle control part of the modification of embodiment. The perspective view which shows the tibial angle control part of the modification of embodiment. (A)-(e) is a schematic diagram which shows the teaching information of the modification of embodiment. The side view which shows the whole structure of the conventional exercise assistance apparatus.

(1) This exercise assisting device includes a footrest portion, a lower leg angle restricting portion, and a thigh angle restricting portion. The footrest mounts the user's sole. The lower leg angle restricting portion is positioned above the footrest portion, and is attached to the footrest portion so as to be able to contact the user's lower leg with the sole placed on the footrest portion. The thigh angle restricting portion is located behind the crus angle restricting portion, and is attached to the footrest portion so as to be able to contact at least one of a user's buttocks and a thigh back surface with the sole placed on the footrest portion. Yes.
(2) The crus angle restricting portion has a shin contact surface that can come into contact with the shin, and the shin contact surface faces the thigh angle restricting portion side.
(3) The exercise assisting device includes a thigh angle adjustment unit, and the thigh angle adjustment unit is an angle in a height position of the thigh angle regulation unit with respect to the footrest unit or a depth direction of the thigh angle regulation unit. To change.
(4) The exercise assisting device includes a contact detection unit and a calculation unit. The contact detection unit is attached to the thigh angle regulating unit and outputs a signal corresponding to a load applied to the contact detection unit. The computing unit determines whether at least one of the back of the thigh and the buttocks is in contact with the thigh angle regulating unit based on the output of the contact detection unit.
(5) The exercise assisting device includes a thigh distance detection unit and a calculation unit. The thigh distance detection unit is attached to the thigh angle regulation unit, and outputs a signal corresponding to the distance between the thigh distance detection unit and the thigh or the buttocks. The calculation unit determines whether the thigh or the buttocks has approached the thigh angle restriction unit based on the output of the thigh distance detection unit.

(First embodiment)
The exercise assisting apparatus 1 includes a main body 10, a display unit 60, a calculation unit 70 (see FIG. 3), a load detection unit 80 (see FIG. 3), and a contact detection unit 90 (see FIG. 3).

  The main body 10 includes a support base 11, a restriction part support part 12, a grip part support part 13, a seat part support part 14, a footrest part 20, a crus angle restriction part 30, a thigh angle restriction part 40, and a grip part 50. Hereinafter, a direction orthogonal to the footrest surface 21 of the footrest portion 20 is referred to as a “height direction”. A direction along the left and right sides of the user in a state where the user puts his sole on the exercise assisting device 1 is referred to as a “width direction”. The direction along the front and rear of the user in a state where the user puts the sole on the exercise assisting device 1 is referred to as a “depth direction”.

  The support base 11 has a front portion 11A and a rear portion 11B. The support base 11 is installed on a floor surface (not shown). The front portion 11A has a plate shape. The rear portion 11B is formed of a rod-shaped member. The rear portion 11B is connected to the rear end portion of the front portion 11A and is located rearward of the front portion 11A.

  The restriction part support part 12 has two first support parts 12A and a second support part 12B. 12 A of 1st support parts are formed as a rod-shaped member extended upward from the both ends of the width direction of the support stand 11. As shown in FIG. The second support portion 12B is formed as a rod-like member that connects the upper ends of the two first support portions 12A to each other.

The gripping part support part 13 has a rod-shaped member 13A and an adjustment part 13B.
The bar-shaped member 13 </ b> A extends upward from the front end portion in the depth direction and the intermediate portion in the width direction of the support base 11. The rod-shaped member 13 </ b> A is located in front of the restricting portion support portion 12. The bar-shaped member 13A extends upward from the support base 11 in the upper portion. In the upper portion, the rod-shaped member 13A is inclined from the front to the rear as it goes from the lower side to the upper side. The adjustment part 13B is located in the intermediate part of the rod-shaped member 13A. The adjustment unit 13B changes the length of the rod-shaped member 13A.

The seat support part 14 includes a rod-shaped member 15 and a thigh angle adjustment part 16.
The rod-shaped member 15 extends upward from the rear end portion of the rear portion 11B and the intermediate portion in the width direction. The rod-shaped member 15 is located behind the footrest portion 20. The rod-shaped member 15 extends vertically from the rear portion 11B.

  The thigh angle adjustment unit 16 includes a motor 16A (see FIG. 3) and a lifting mechanism (not shown). The thigh angle adjustment unit 16 adjusts the height position of the seat portion 41. The motor 16A is located in the vicinity of the connecting portion between the rod-shaped member 15 and the rear portion 11B. The motor 16A and the rod-like member 15 are connected by an elevating mechanism. The rotation of the motor 16A moves the rod-shaped member 15 upward and downward via the lifting mechanism. As the lifting mechanism, for example, a mechanism combining a worm gear and a ball screw can be employed.

  The footrest 20 includes a right footrest 20R for placing the sole of the right foot and a left footrest 20L for placing the sole of the left foot. The right foot rest 20R and the left foot rest 20L are independent of each other. The footrest 20 is disposed on the upper surface of the front portion 11A. Each footrest portion 20R, 20L has a footrest surface 21.

  The footrest surface 21 is formed as a surface above the footrest portion 20. As shown in FIG. 3, the footrest surface 21 has a toe placement surface 22 and a heel placement surface 23. The footrest surface 21 is placed on the sole of the user. The toe placement surface 22 constitutes a front portion of the footrest surface 21. On the toe placement surface 22, a user's toe 214 (see FIG. 4) is placed. The heel arrangement surface 23 constitutes a rear portion of the footrest surface 21. On the heel arrangement surface 23, a user's heel 215 (see FIG. 4) is arranged.

  As shown in FIG. 1, the crus angle restricting portion 30 includes a back support portion 31 and an elastic member 32. The crus angle restricting portion 30 is attached to the footrest portion 20 via the restricting portion supporting portion 12 and the front portion 11A. The shin contact surface 33 of the crus angle restricting portion 30 restricts the tibia angle DA of the tibia 221 of the user. The tibial angle DA corresponds to the longitudinal angle of the tibia 221 with respect to the footrest surface 21.

The back surface support part 31 has a plate shape extending in the width direction. The back support part 31 is attached to the second support part 12B. The back support part 31 supports the elastic member 32 from the front side.
The elastic member 32 has two shin contact surfaces 33. The two shin contact surfaces 33 are arranged side by side in the width direction of the elastic member 32. The shin contact surface 33 is formed on the rear side of the elastic member 32. The shin contact surface 33 has an upper end portion 34 and a lower end portion 35.

  As shown in FIG. 2, the shin abutment surface 33 has a U shape whose cross section along the width direction corresponds to the shape of the shin 211. The lower end 35 is positioned above the footrest surface 21. That is, the elastic member 32 is disposed with a predetermined space S between the footrest surface 21 and the elastic member 32. The shin contact surface 33 is substantially orthogonal to the footrest surface 21.

  As shown in FIG. 5, the height of the lower end portion 35 from the footrest surface 21 (hereinafter, “lower end height HA”) is set according to the external fruit height of a general user. The lower end height HA is preferably, for example, 84 mm or more, and particularly preferably 96 mm. The outer fruit height indicates the height from the sole surface to the outermost protrusion point of the outer fruit when the user is standing.

  The height of the upper end portion 34 from the footrest surface 21 (hereinafter, “upper end height HB”) is set according to the knee height of a general user. The upper end height HB is preferably, for example, 326 mm or less, and particularly preferably 277 mm. The knee height indicates the height from the back of the foot to the upper end of the tibia 221 when the user is standing.

  The shin distance LA from the shin contact surface 33 to the front end portion of the toe placement surface 22 is set to be larger than the distance from the front end portion of the ankle to the toe in the depth direction of a general user.

  As shown in FIG. 1, the thigh angle restricting portion 40 includes a seat portion 41 and a backrest 42. The seat 41 is attached to the upper end of the rod-like member 15. The backrest 42 is attached to the rear end of the seat 41. When the rod-like member 15 moves upward by the motor 16A, the thigh angle restricting portion 40 moves upward. When the rod-like member 15 moves downward by the motor 16A, the thigh angle restricting portion 40 moves downward. The seat portion 41 of the thigh angle regulating unit 40 regulates the change in the thigh angle DB of the user's femur 222. The thigh angle DB corresponds to the angle in the longitudinal direction of the femur 222 with respect to the footrest surface 21.

The grip part 50 is attached to the upper end of the grip part support part 13. The grip part 50 is formed as a rod-like member extending in the width direction.
The display unit 60 is disposed at an intermediate position in the width direction of the grip unit 50 and above. The display unit 60 has a touch panel type liquid crystal screen.

The calculation unit 70 is disposed inside the support base 11. The calculation unit 70 starts and ends various calculations by operating the touch panel of the display unit 60.
As shown in FIG. 3, the load detection unit 80 is disposed between the support base 11 and the footrest unit 20. For example, a strain sensor is employed as the load detection unit 80. The load detection unit 80 includes a right foot load detection unit 81 and a left foot load detection unit 83.

The right foot load detection unit 81 includes four load sensors 82. The four load sensors 82 are disposed at each of the four corners of the right foot rest 20R.
The left foot load detection unit 83 includes four load sensors 84. The four load sensors 84 are disposed at each of the four corners of the left footrest 20L.

  The contact detection part 90 is arrange | positioned in the part which can detect a user's load, when the thigh back surface or the buttocks contact | abuts among the seat parts 41 (refer FIG. 1). As the contact detection unit 90, for example, a strain sensor is used. As a part which can detect a user's load, the connection part with the seat surface of seat part 41 and seat part support part 14 (refer to Drawing 1) of seat part 41 is mentioned, for example.

The electrical configuration of the exercise assistance device 1 will be described.
Each load sensor 82 outputs a signal corresponding to the load applied to the right foot rest 20R to the arithmetic unit 70. Each load sensor 84 outputs a signal corresponding to the load applied to the left footrest 20L to the calculator 70.

The contact detection unit 90 outputs a signal corresponding to the load applied to the seat 41 to the calculation unit 70.
The calculation unit 70 performs various calculations based on signals from the load sensors 82, the load sensors 84, and the contact detection unit 90. The calculation unit 70 outputs the calculation result to the display unit 60. The display unit 60 displays various information on the liquid crystal screen based on the output of the calculation unit 70.

With reference to FIG. 4, the order of the exercise | movement (henceforth "squat exercise | movement") which bends and stretches the knee 216 which a user performs using the exercise assistance apparatus 1 is demonstrated.
(Operation 1) As shown in FIG. 4A, the user inserts the toe 214 into the arrangement space S and touches the shin 211 against the shin contact surface 33. In addition, the grip part 50 is gripped. At this time, the tibia angle DA is regulated by the shin contact surface 33. At this time, as shown in FIG. 5, the toe 214 is located in front of the knee 216.

  (Operation 2) The user inputs a desired thigh angle DB and height through the touch panel of the display unit 60. At this time, the calculation unit 70 drives the motor 16A so that the thigh angle DB becomes the target thigh angle DB, and changes the height position of the seat portion 41. An example of the target angle is 90 degrees.

(Operation 3) The user operates the touch panel to start various measurements.
(Operation 4) As shown in FIG. 4A, the user extends the hip joint and the knee joint.

  (Operation 5) As shown in FIG. 4B, the user bends the hip joint and the hip joint until the thigh and the buttocks contact the seat 41. Thereafter, (operation 4) and (operation 5) are repeated a number of times according to the user's preference and purpose.

With reference to FIG. 3, the calculation process of the squat frequency | count of the calculating part 70 in squat exercise | movement is demonstrated.
The calculation unit 70 calculates the number of squats based on the output of the contact detection unit 90 (hereinafter “seat load GH”). Specifically, “1” is added to the count of the number of squats every time the seat load GH exceeds a predetermined value after the calculation process is started. The calculation unit 70 generates a signal for displaying the calculated number of squats.

The load calculation process of the calculation unit 70 in the squat motion will be described.
The calculation unit 70 calculates a load (hereinafter, “right foot load GR”) applied to the right foot placement unit 20 </ b> R in accordance with a signal from each load sensor 82. Specifically, signals from the load sensors 82 are added, and the right foot load GR is calculated based on the added value.

  The calculation unit 70 calculates a load (hereinafter, “left foot load GL”) applied to the left foot placement unit 20L in accordance with a signal from each load sensor 84. Specifically, signals from the load sensors 84 are added, and the left foot load GL is calculated based on the added value.

  The calculation unit 70 calculates the ratio of the right foot load GR (hereinafter, “right foot ratio RR”) and the ratio of the left foot load GL (hereinafter, “left foot ratio RL”) based on the right foot load GR. The right foot ratio RR is calculated as the ratio of the right foot load GR to the sum of the right foot load GR and the left foot load GL (hereinafter, “total load GS”). The left foot ratio RL is calculated as the ratio of the left foot load GL to the total load GS. The calculation unit 70 generates a signal for displaying the calculated right foot ratio RR and left foot ratio RL.

  When the calculation unit 70 determines that the squat exercise has been performed once, based on the right foot ratio RR and the left foot ratio RL, the arithmetic unit 70 sets the target value of the right foot ratio RR (hereinafter, “right foot target value TR”) and the left foot ratio. A target value of RL (hereinafter, “left foot target value TL”) is calculated.

  The right foot target value TR and the left foot target value TL are calculated as values that bring the right foot ratio RR and the left foot ratio RL closer to 50% when there is a difference between the right foot ratio RR and the left foot ratio RL. The right foot target value TR and the left foot target value TL are calculated by assuming that the right foot target value TR and the left foot target value TL are both 50% when both the right foot ratio RR and the left foot ratio RL are 50%.

  The computing unit 70 selects teaching information from a plurality of image information stored in advance based on the right foot target value TR and the left foot target value TL. The teaching information is selected based on the magnitude relationship between the right foot target value TR and the left foot target value TL. Specifically, when the right foot target value TR is larger than the current right foot ratio RR, the calculation unit 70 selects, as teaching information, image information that schematically shows a state where the user's whole body is tilted to the right. When the left foot target value TL is larger than the current left foot ratio RL, the calculation unit 70 selects image information schematically showing a state where the user's whole body is tilted to the left as teaching information. The calculation unit 70 generates a signal for displaying the selected teaching information.

Based on the signal from the load detection unit 80, the calculation unit 70 calculates a load center position (hereinafter “load center position CA”) for each of the right foot and the left foot.
The calculation unit 70 calculates the load center position CA of the right foot using the output of each load sensor 82 and the position of each load sensor 82 on the footrest surface 21. The calculation unit 70 calculates the load center position CA of the left foot using the output of each load sensor 84 and the position of each load sensor 82 on the footrest surface 21. The load center position CA is close to the position of the load sensor 82, 84 with the highest output among the load sensors 82, 84, and from the position of the load sensor 82, 84 with the lowest output among the load sensors 82, 84. Calculated as a far position.

  The calculation unit 70 stores an appropriate load center position (hereinafter, “target position CB”) in advance. The calculation unit 70 generates a signal for displaying the calculated load center position CA and target position CB.

  The calculation unit 70 generates signals generated based on the right foot ratio RR, the left foot ratio RL, the right foot target value TR, the left foot target value TL, the teaching information, the number of counts, the load center position CA, and the target position CB on the display unit 60. Output.

The display content of the display unit 60 will be described with reference to FIGS.
As shown in FIG. 6, the display unit 60 includes a load display unit 61, a teaching display unit 66, a number display unit 67, and a gravity center display unit 68.

  The load display unit 61 displays a load bar 62 indicating the right foot ratio RR, a load bar 63 indicating the left foot ratio RL, a target line 64 indicating the right foot target value TR, and a target line 65 indicating the left foot target value TL. The target line 64 is displayed in association with the load bar 62 having the right foot ratio RR. The target line 65 is displayed in association with the load bar 63 having the left foot ratio RL. The teaching display unit 66 displays teaching information. The number display part 67 displays the number of squats. As shown in FIG. 7, the center-of-gravity display unit 68 displays an image schematically showing the sole showing the load center position CA and the target position CB.

The operation of the exercise assistance device 1 will be described.
The exercise assisting apparatus 1 includes a thigh angle restriction unit 40. For this reason, the user can easily grasp whether the knee is bent to an appropriate angle by bringing the seat 41 and at least one of the buttocks and the thigh back as shown in FIG.

  When performing the squat exercise, the more the knee 216 is located in front of the user, that is, the more the upper part of the tibia is tilted forward than the lower part, the greater the squat exercise load. For this reason, muscle training efficiency can be improved. On the other hand, for example, it is difficult for a user who has pain in the knee 216 to perform a squat exercise with a large load on the knee joint. For this reason, for users who have pain in the knee 216, squat exercise with a smaller load on the knee joint can increase the number of exercises and continuity. For this reason, the training efficiency increases when the load on the knee joint is small.

  In the exercise assisting apparatus 1, the crus angle restricting portion 30 has a shin contact surface 33. For this reason, the positions of the tibia and the knee 216 on the front side of the user are restricted. For this reason, it can suppress that the state where the knee 216 is located too much forward is formed. For this reason, the user can perform a squat exercise with a small load.

Furthermore, the squat motion in a state where the toe 214 is located at the same position or rearward as the knee 216 in the depth direction has a large load on the knee joint.
In the exercise assisting apparatus 1, an arrangement space S is formed between the shin contact surface 33 and the footrest surface 21 of the footrest portion 20. The lower end portion 35 of the shin contact surface 33 is located above the height of the external fruit of a general user. For this reason, the user can form a state in which the front portion of the foot is disposed forward of the shin contact surface 33 by inserting the toe 214 into the placement space S. For this reason, the toe 214 can perform a squat exercise in a state where the toe 214 is positioned in front of the knee 216. For this reason, the load of squat exercise | movement can be made small compared with the case where the toe 214 is the same as the knee 216, or is located behind the knee 216.

  The exercise assisting apparatus 1 has an advantageous effect as compared with the conventional exercise assisting apparatus 300 shown in FIG. The user puts the soles of the footrests 310 and performs a squat exercise with the knees 216 placed on the vertical boards 320. At this time, the patella is pressed against the vertical board 320. For this reason, the movement of the patella is inhibited by the vertical board 320. For this reason, the position of the patella deviates from an appropriate position with respect to the femur and tibia. For this reason, the function which suppresses the movement to the front of a femur falls. For this reason, in the user who has a pain in the knee 216, the knee 216 is likely to be painful. Further, since the patella is pressed by the vertical board 320, the load between the femur and the patella is increased. For this reason, pain is likely to occur in a user whose cartilage between the femur and the patella is deformed. For this reason, it becomes difficult to use the exercise assisting apparatus 300.

  In the exercise assisting apparatus 1, when the shin 211 contacts the shin abutment surface 33 in the squat exercise, the knee 216 does not contact the shin abutment surface 33. For this reason, the patella cannot be pressed against the shin contact surface 33. For this reason, the freedom of movement of the tibia and femur is not suppressed on the back side of the patella. For this reason, movement of the patella and femur is not hindered. For this reason, it is difficult for a user who has pain in the knee 216 to experience pain in the knee 216. In addition, pain is less likely to occur in a user whose cartilage between the femur and the patella is deformed. For this reason, it becomes easy to use the exercise assistance apparatus 1. In addition, since the exercise assisting apparatus 1 includes the elastic member 32, pain is less likely to occur near the knee 216.

  For example, a user who has pain in one of the right knee 216 and the left knee 216 tends to apply a load to the knee 216 that is not painful in the squat exercise. For this reason, the training efficiency of the right lower limb and the left lower limb in the squat exercise is different. The display unit 60 displays a load bar 62 indicating the right foot ratio RR and a load bar 63 indicating the left foot ratio RL on the load display unit 61. For this reason, even for a user who has pain in one of the right knee 216 and the left knee 216, the right lower limb and the left lower limb can be trained in a balanced manner.

  In the same user, the higher the position of the seat 41 in the height direction, the greater the thigh angle DB when at least one of the buttocks and the back of the thigh contacts the seat 41. Further, when the height of the seat portion 41 is the same among users with different heights, the thigh angle DB when the height of the user is higher and the at least one of the buttocks and the back of the thigh is in contact with the seat portion 41 is the thigh angle DB. growing.

  The exercise assisting apparatus 1 includes a motor 16A that can change the height position of the seat 41. For this reason, for example, the height position of the seat 41 is lowered from the position in the height direction of the seat 41 shown in FIG. 8A to the position in the height direction of the seat 41 shown in FIG. . Thereby, thigh angle DB when at least one of a buttocks and a thigh back surface contacts the seat part 41 in the same user can be made small. Further, the height position of the seat portion 41 is raised from the position in the height direction of the seat portion 41 shown in FIG. 8B to the position in the height direction of the seat portion 41 shown in FIG. Thereby, thigh angle DB when at least one of a buttocks and a thigh back surface contacts the seat part 41 in the same user can be enlarged. For this reason, the exercise assistance device 1 can change the thigh angle DB according to the purpose of the squat exercise and the height of the user.

  The exercise assisting device 1 determines whether or not at least one of the back of the thigh and the buttocks of the user has contacted the thigh angle restriction unit based on the output of the contact detection unit 90. For this reason, the exercise assisting apparatus 1 can count the number of squat exercises based on the output of the contact detection unit 90. Further, since the number of squat exercises is counted based on the output of the contact detection unit 90, counting inappropriate squat exercises in which the buttocks and the back of the thigh do not contact the seat portion 41 is suppressed.

The exercise assistance device 1 has the following effects.
(1) The exercise assisting apparatus 1 has a thigh angle regulating unit 40. For this reason, the user can easily grasp whether the knee is bent to an appropriate angle by bringing the thigh angle restricting portion 40 into contact with at least one of the buttocks and the thigh back surface.

  (2) In the exercise assisting apparatus 1, the crus angle regulating unit 30 has a shin contact surface 33. For this reason, it can suppress that the state where a knee is located too much forward is formed. For this reason, the user can perform a squat exercise with a small load.

(3) The exercise assisting apparatus 1 can change the height position at which the seat 41 and the back of the thigh and the buttocks contact each other by the motor 16A.
(4) The exercise assisting apparatus 1 determines whether at least one of the user's back of the thigh and the buttocks has contacted the seat 41 based on the output of the contact detection unit 90. For this reason, the exercise assistance device 1 can appropriately count the number of squat exercises.

  (5) An arrangement space S is formed between the shin contact surface 33 of the exercise assisting device 1 and the footrest portion 20. For this reason, the user can perform a squat exercise with the toe 214 positioned forward of the knee 216 by placing the foot in the placement space S. For this reason, the load on the knee joint during squat motion can be reduced.

  (6) The upper end 34 of the shin contact surface 33 is located below the lower end of the general user's patella. For this reason, the shin contact surface 33 does not contact the knee 216 during the squat exercise. That is, the shin contact surface 33 does not hold the patella. For this reason, the freedom degree of the knee joint at the time of squat exercise | movement can be improved compared with the virtual exercise | movement assistance apparatus with which the shin contact surface 33 contacts the knee 216 at the time of squat exercise | movement. For this reason, it can suppress that a knee joint hurts at the time of squat exercise.

(7) The exercise assisting apparatus 1 has a gripping part 50. For this reason, the user can perform the squat motion stably by gripping the grip portion 50.
(8) The gripping part support part 13 has an adjustment part 13B. For this reason, the height position of the holding | gripping part 50 can be adjusted according to a user's physique.

  (9) The load display unit 61 displays the load bars 62 and 63. For this reason, the user can grasp the right foot load and the left foot load during squat exercise. For this reason, the user can easily change the load balance between the right foot and the left foot to an appropriate one.

  (10) The load display unit 61 displays a target line 64 as a target value for the right foot ratio RR. The display unit 60 displays a target line 65 as a target value for the left foot ratio RL. For this reason, the user can easily grasp an appropriate load balance between the right foot and the left foot.

  (11) The gravity center display unit 68 displays the load center position CA. For this reason, the user can easily grasp the load center position CA on the right foot. In addition, the user can easily grasp the load center position CA on the left foot.

  (12) The gravity center display unit 68 displays the target position CB. For this reason, the user can easily grasp the target position CB on the right foot. In addition, the user can easily grasp the target position CB on the left foot. For this reason, the user can easily change the load center position CA to the target position CB.

  (13) The teaching display unit 66 displays teaching information that schematically shows the movement of the center of gravity for the user to achieve the target value. For this reason, the user can easily grasp how to move the center of gravity.

(Other embodiments)
This exercise assistance device includes embodiments other than the above-described embodiment. Hereinafter, the modification of the said embodiment as other embodiment of this exercise assistance apparatus is shown.

  -The thigh angle regulation part 40 of embodiment is attached to the footrest part 20 via the support stand 11. As shown in FIG. However, the configuration of the thigh angle restriction unit 40 is not limited to this. For example, the thigh angle restricting portion 40 of the modified example is directly attached to the rear end portion of the footrest portion 20.

  The thigh angle restriction unit 40 of the embodiment has a backrest 42. However, the configuration of the thigh angle restriction unit 40 is not limited to this. For example, the backrest 42 is omitted from the thigh angle restricting portion 40 of the modified example.

  -The thigh angle control part 40 of embodiment has a chair shape. However, the configuration of the thigh angle restriction unit 40 is not limited to this. For example, the thigh angle restricting portion 40 of the modified example has a pole shape. The thigh angle restricting portion 40 of this modification may be a spherical portion formed at the upper end portion of the rod-like member 15. Further, the thigh angle restricting portion 40 and the seat portion supporting portion 14 of a further modification have a plate shape. The thigh angle restricting portion 40 and the seat support portion 14 of this modification have L-shaped sides. Further, in the thigh angle regulating portion 40 and the seat portion support portion 14 of another modification, the seat portion support portion 14 is formed by two plate-like members. The two seat support portions 14 support the front end portion and the rear end portion of the thigh angle regulating portion 40, respectively. The thigh angle restricting portion 40 and the seat support portion 14 of this modification have U-shaped side surfaces. In short, the shape of the thigh angle restricting portion 40 can be changed to any shape as long as it can contact at least one of the buttocks and the back of the thigh.

  -The thigh angle regulation part 40 of embodiment can contact at least one of a buttocks and a thigh back surface. However, the configuration of the thigh angle restriction unit 40 is not limited to this. For example, the thigh angle restriction unit 140 of the modification shown in FIG. 9 contacts the thigh front surface. The thigh angle regulating unit 140 includes a rotational movement unit 141, an elastic member 142, a support unit 143, and a hinge 144.

  The support part 143 is configured as a rod-like member that is attached to both lateral ends of the back support part 31 and extends above the back support part 31. The rotational movement unit 141 is attached to the upper end of the support unit 143 via a hinge 144. The rotational movement unit 141 can rotate with respect to the support unit 143. In addition, a spring (not shown) is attached between the rotational movement part 141 and the support part 143. This spring gives the rotational movement part 141 a force that rotates in the rotational direction RA approaching the front surface of the user's thigh. Further, the hinge 144 is formed with a detent mechanism, and the maximum phase in the rotational direction RA is defined. In other words, the rotational movement unit 141 can freely rotate on the side opposite to the rotation direction RA from the maximum phase. The elastic member 142 is attached to an end portion of the rotational movement portion 141 opposite to the support portion 143 and a side facing the front surface of the user's thigh.

  For example, when the maximum phase is set to a phase corresponding to an angle at which the tibia 221 and the femur 222 are substantially orthogonal to each other, the thigh angle is smaller than 90 degrees, so that the front surface of the thigh is separated from the elastic member 142. On the other hand, when the thigh angle is larger than 90 degrees, the contact between the thigh front surface and the elastic member 142 is maintained. For this reason, the user can easily grasp whether the knee is bent to an appropriate angle.

  -The following structures can also be added to the thigh angle regulation part 40 of embodiment. That is, the thigh angle restricting portion 40 has a rotating structure that rotates the seat portion 41 in the horizontal direction. The rotating structure is constituted by a bearing attached between the seat support portion 14 and the seat portion 41, for example. The thigh angle restricting portion 40 of this modification can allow the user to sit on the seat 41 and get off the seat 41 with the front of the seat 41 directed to the right or left. And when using the exercise assistance apparatus 1, a user can face the front by rotating the seat part 41. FIG. For this reason, even if it is a user with a reduced foot, for example, getting on and off to the seat part 41 can be performed easily.

  In the exercise assistance device 1 of the embodiment, the motor 16 </ b> A is driven when the user inputs the target thigh angle DB and height through the touch panel of the display unit 60. However, the configuration of the exercise assisting device 1 is not limited to this. For example, in the exercise assisting apparatus 1 according to the modified example, the user changes the height position of the seat portion 41 by operating the driving and stopping of the motor 16A.

  -The thigh angle adjustment part 16 of embodiment has the motor 16A. However, the configuration of the thigh angle adjustment unit 16 is not limited to this. For example, the thigh angle adjustment unit 16 of the modification is configured by a manual screw mechanism or a gear mechanism. Further, the thigh angle adjusting unit 16 of a further modification is configured as a height adjusting table installed on the upper surface of the seat 41. The exercise assisting apparatus 1 can change the thigh angle DB by attaching and detaching the height adjustment base to / from the seat portion 41.

  -The thigh angle adjustment part 16 of embodiment changes the height position of the thigh angle control part 40. FIG. However, the configuration of the thigh angle adjustment unit 16 is not limited to this. For example, the thigh angle adjustment unit of the modified example changes the angle of the seat portion 41 in the depth direction. In the thigh angle restricting portion 40 of this modification, the thigh angle DB when at least one of the user's buttocks and the back of the thigh contacts the seat portion 41 increases as the front portion of the seat portion 41 tilts downward. Further, as the front of the seat 41 is tilted upward, the thigh angle DB when at least one of the user's buttocks and the back of the thigh contacts the seat 41 becomes smaller.

  The exercise assistance device 1 according to the embodiment includes a thigh angle adjustment unit 16. However, the configuration of the exercise assisting device 1 is not limited to this. For example, the thigh angle adjustment unit 16 is omitted from the exercise assistance device 1 according to the modification.

  In the exercise assistance device 1 according to the embodiment, the crus angle restricting portion 30 is supported by the restricting portion supporting portion 12. However, the configuration of the exercise assisting device 1 is not limited to this. For example, in the exercise assisting apparatus 1 according to the modified example, the crus angle restricting portion 30 is attached to the footrest portion 20 via the grip portion supporting portion 13.

  In the embodiment, the lower leg angle restricting portion 30 is attached to the footrest portion 20 via the support base 11. However, the configuration of the crus angle restriction unit 30 is not limited to this. For example, the modified crus angle regulating portion 30 is directly attached to the rear end portion of the footrest portion 20.

  -The shape of the elastic member 32 of embodiment can also be changed like FIG. In short, the shape of the elastic member 32 can be changed to any shape as long as the elastic member 32 contacts the user's lower leg and does not directly contact the back support 31.

  In the embodiment, the crus angle restricting portion 30 includes an elastic member 32. However, the configuration of the crus angle restriction unit 30 is not limited to this. For example, the elastic assisting device 32 is omitted from the exercise assisting apparatus 1 of the modified example. In this case, the rear surface of the back support portion 31 constitutes the shin contact surface 33.

  In the embodiment, the shin contact surface 33 is substantially orthogonal to the footrest surface 21. However, the configuration of the shin contact surface 33 is not limited to this. For example, the modified shin contact surface 33 is inclined with respect to the footrest surface 21. According to the exercise assisting apparatus 1 of this modification, the user can perform a squat exercise with the center of gravity close to the rear. For this reason, the shear force of the knee 216 can be reduced. For this reason, the training effect of hamstrings including the quadriceps can be enhanced.

  -The following structures can also be added to the exercise assistance apparatus 1 of embodiment. That is, the exercise assisting apparatus 1 has an angle adjustment unit that can change the inclination angle of the shin contact surface 33. As the angle adjustment unit, for example, a hinge attached to the second support unit 12B and the back support unit 31 can be adopted. The user can change the angle of the shin contact surface 33 according to the physique and the intended load.

  In the embodiment, the crus angle regulating unit 30 regulates the tibia angle DA by the shin contact surface 33. However, the configuration of the crus angle restriction unit 30 is not limited to this. For example, the crus angle restricting portion 30 of the modified example restricts the tibia angle DA by a calf contact surface that contacts the calf instead of or in addition to the shin contact surface 33.

  The exercise assistance device 1 according to the embodiment has an arrangement space S. However, the configuration of the exercise assisting device 1 is not limited to this. For example, the exercise assistance device 1 according to the modified example does not form the arrangement space S by bringing the lower end portion 35 of the shin contact surface 33 into contact with the footrest portion 20.

  -The following structures can also be added to the exercise assistance apparatus 1 of embodiment. That is, the exercise assisting apparatus 1 has a height adjusting unit that can adjust the height of the crus angle regulating unit 30. As the height adjustment unit, for example, a hinge attached to the second support unit 12B and the back support unit 31 can be adopted. The user can change the angle of the shin contact surface 33 according to the physique and the intended load.

  In the exercise assistance device 1 according to the embodiment, the four load sensors 82 and 84 are disposed at the four corners of the right footrest portion 20R and the left footrest portion 20L. However, the configuration of the exercise assisting device 1 is not limited to this. For example, in the exercise assisting apparatus 1 according to the modified example, one load sensor 82, 84 is disposed in the right footrest portion 20R and the left footrest portion 20L. The exercise assisting apparatus 1 according to this modification calculates the right foot load GR based on the output of the load sensor 82 and calculates the left foot load GL based on the output of the load sensor 84.

  -The load detection part 80 of embodiment is arrange | positioned between the support stand 11 and the footrest part 20. As shown in FIG. However, the configuration of the load detection unit 80 is not limited to this. For example, the modified load detection unit 80 is disposed on the shin contact surface 33. The load applied to the right shin contact surface 33 correlates with the right foot load GR. The load applied to the left shin contact surface 33 correlates with the left foot load GL. Therefore, the calculation unit 70 can calculate the right foot load GR and the left foot load GL based on the outputs of the load sensors 82 and 84. In short, as long as the right foot load GR and the left foot load GL can be calculated, the position of the load detection unit 80 can be changed to any position.

  -The contact detection part 90 of embodiment is arrange | positioned at the thigh angle control part 40. FIG. However, the configuration of the contact detection unit 90 is not limited to this. For example, the contact detection part 90 of a modification is arrange | positioned at the back part 11B. In short, the position of the contact detection unit 90 can be changed to any position as long as the load applied to the thigh angle regulation unit 40 can be detected.

  The exercise assistance device 1 according to the embodiment includes a contact detection unit 90. However, the configuration of the exercise assisting device 1 is not limited to this. For example, the exercise assisting apparatus 1 according to the modification includes a thigh distance detection unit. The thigh distance detection unit is attached to the thigh angle regulation unit 40. The thigh distance detection unit outputs a signal corresponding to the distance between the thigh distance detection unit and the thigh or the buttocks. The computing unit 70 determines whether the thigh or the buttocks has approached the thigh angle regulating unit 40 based on the output of the thigh distance detecting unit. When the calculation unit 70 determines that the distance between the thigh or the buttocks and the thigh angle restriction unit 40 is not a predetermined distance, the calculation unit 70 determines that (operation 4) and (operation 5) of the squat exercise have been performed once. To do.

  The exercise assistance device 1 according to the embodiment includes a contact detection unit 90 that is different from the load detection unit 80. However, the configuration of the exercise assisting device 1 is not limited to this. For example, in the exercise assisting apparatus 1 according to the modified example, the load detection unit 80 functions as the contact detection unit 90. The calculation unit 70 of this modification determines from the changes in the right foot load GR and the left foot load GL that (operation 4) and (operation 5) of the squat motion have been performed once.

  -The holding part 50 of embodiment has a rod shape. However, the structure of the holding | gripping part 50 is not restricted to this. For example, the grip part 50 of a modification has a string shape. The grip 50 of this modification can be attached to the front end of the support base 11. The user grips the middle part of the gripper 50 and performs a squat motion. In short, any configuration can be adopted as long as the gripper can be gripped by the user during the squat motion.

  The calculation unit 70 of the embodiment selects, as teaching information, image information schematically showing a state where the user's whole body is tilted to the left or image information schematically showing a state where the user's whole body is tilted to the left To do. However, the teaching information is not limited to this. The teaching information can be changed to the following (A) to (E).

  (A) When the right foot target value TR is larger than the current right foot ratio RR, the arithmetic unit 70 shows an arrow pointing downward on the right side of the lower body shown in FIG. 11A and faces upward on the left side of the lower body. The image information indicating the indicated arrow is selected as teaching information. When the left foot target value TL is larger than the current left foot ratio RL, the calculation unit 70 selects, as teaching information, image information indicating an arrow pointing upward on the right side of the lower body and an arrow pointing downward on the left side of the lower body To do.

  (B) When the right foot target value TR is larger than the current right foot ratio RR, the calculation unit 70 selects image information in which the right foot shown in FIG. 11B is positioned below the left foot as teaching information. When the left foot target value TL is larger than the current left foot ratio RL, the calculation unit 70 selects image information in which the left foot is located below the right foot as teaching information.

  (C) When the right foot target value TR is larger than the current right foot ratio RR, the calculation unit 70 selects image information indicating a downward impact as teaching information below the right foot shown in FIG. . When the left foot target value TL is greater than the current left foot ratio RL, the calculation unit 70 selects image information indicating a downward impact below the left foot as teaching information.

  (D) When the right foot target value TR is larger than the current right foot ratio RR, the computing unit 70 selects image information in which the right foot shown in FIG. 11D is larger than the left foot as teaching information. When the left foot target value TL is larger than the current left foot ratio RL, the calculation unit 70 selects image information in which the left foot is larger than the right foot as teaching information.

  (E) When the right foot target value TR is larger than the current right foot ratio RR, the arithmetic unit 70 shows an arrow pointing downward on the right foot and an arrow pointing upward on the left foot shown in FIG. The selected image information is selected as teaching information. When the left foot target value TL is larger than the current left foot ratio RL, the calculation unit 70 selects image information indicating an arrow pointing upward on the right foot and an arrow pointing downward on the left foot as teaching information.

  The exercise assistance device 1 of the embodiment displays the teaching information as an image on the teaching display unit 66 of the display unit 60. However, the configuration of the exercise assisting device 1 is not limited to this. For example, the exercise assisting apparatus 1 according to the modified example includes a speaker and displays teaching information as audio information. When the right foot target value TR is larger than the current right foot ratio RR, the arithmetic unit 70 of this modification selects voice information “Please put your weight on the right” as teaching information. When the left foot target value TL is larger than the current left foot ratio RL, the calculation unit 70 selects audio information “Please put your weight on the left” as teaching information. The calculation unit 70 outputs a signal generated based on the selected teaching information to the speaker.

The exercise assisting apparatus 1 according to the embodiment displays the load bars 62 and 63 and the target lines 64 and 65 on the display unit 60. However, the configuration of the exercise assisting device 1 is not limited to this. For example, the exercise assisting apparatus 1 according to the modified example displays at least one of the following (Information A) to (Information C) instead of or in addition to this.
(Display A) The right foot load GR and the left foot load GL are displayed numerically.
(Display B) The difference between the right foot ratio RR and the right foot target value TR and the difference between the left foot ratio RL and the left foot target value TL are displayed numerically.
(Display C) The magnitude relationship between the right foot ratio RR and the right foot target value TR and the magnitude relationship between the left foot ratio RL and the left foot target value TL are displayed as character information.

  The calculation unit 70 according to the embodiment calculates the right foot target value TR and the left foot target value TL when it is determined that (operation 4) and (operation 5) of the squat exercise are performed once. However, the structure of the calculating part 70 is not restricted to this. For example, the right foot target value TR and the left foot target value TL can be calculated by the following (Target calculation A) or (Target calculation B).

  (Target calculation A) The calculation unit 70 calculates the right foot target value TR and the left foot target value TL when it is determined that (operation 4) and (operation 5) of the squat exercise have been performed a predetermined number of times. In this case, the right foot target value TR is calculated based on the average value of the right foot ratio RR for a predetermined number of times. The left foot target value TL is calculated based on an average value of the left foot ratio RL for a predetermined number of times.

  (Target calculation B) The calculation unit 70 calculates the right foot target value TR and the left foot target value TL when it is determined that the user is in a stationary standing state for a predetermined period. In this case, the right foot target value TR is calculated based on the average value of the right foot ratio RR over a predetermined period. The left foot target value TL is calculated based on the average value of the left foot ratio RL for a predetermined period. The calculation unit 70 can determine that the vehicle is in the stationary standing state based on small changes in the right foot load GR and the left foot load GL. In addition, the calculation unit 70 can prepare the target calculation mode and determine that the user is in a stationary standing state for a predetermined period based on the elapse of a predetermined period after the target calculation mode is selected. . In this case, the exercise assisting apparatus 1 prepares a target calculation mode button on the display unit 60. The computing unit 70 determines that the target computation mode has been selected when the target computation mode button is pressed. The display unit 60 displays to the user that the stationary standing state is maintained until a predetermined period elapses.

  In the embodiment, the display unit 60 includes a load display unit 61, a teaching display unit 66, a frequency display unit 67, and a gravity center display unit 68. However, the configuration of the display unit 60 is not limited to this. For example, in the display unit 60 of the modified example, the display unit 60 omits at least one of the load display unit 61, the teaching display unit 66, the number display unit 67, and the gravity center display unit 68.

The exercise assistance device 1 according to the embodiment includes a display unit 60. However, the configuration of the exercise assisting device 1 is not limited to this. For example, in the exercise assistance device 1 according to the modification, the display unit 60 is omitted.
The exercise assistance device 1 according to the embodiment has a touch panel function on the display unit 60. However, the configuration of the exercise assisting device 1 is not limited to this. For example, the exercise assisting apparatus 1 according to the modified example does not have a touch panel function on the display unit 60. In this case, an operation unit can be provided separately from the display unit 60.

  The exercise assistance device 1 according to the embodiment includes a display unit 60, a calculation unit 70, a load detection unit 80, and a contact detection unit 90. However, the configuration of the exercise assisting device 1 is not limited to this. For example, the exercise assisting apparatus 1 of the modified example omits the display unit 60, the calculation unit 70, the load detection unit 80, and the contact detection unit 90.

(Additional notes based on the description of the embodiment)
Items obtained by superposing the items described in the above embodiment will be described below.
(Additional remark 1) The said calculating part calculates the frequency | count of a squat exercise | movement based on the output of the said contact detection part.

  (Additional remark 2) The said exercise assistance apparatus has a holding part, and the said holding part is attached to the said footrest part.

DESCRIPTION OF SYMBOLS 1 ... Exercise assistance apparatus, 16 ... Thigh angle adjustment part, 20 ... Foot rest part, 30 ... Lower leg angle control part, 33 ... Thigh surface, 40 ... Thigh angle control part, 60 ... Display part, 70 ... Calculation part, 90 ... Contact detector.

Claims (5)

A foot rest for placing the sole of the user;
A crus angle regulating unit that is located above the footrest and is attached to the footrest so as to be in contact with a user's lower leg with a sole placed on the footrest;
A thigh angle restricting portion that is located behind the lower leg angle restricting portion and is attached to the foot rest so as to be in contact with at least one of a user's buttocks and a thigh with a sole placed on the foot rest. Exercise assistance device. The crus angle restricting portion has a shin contact surface that can contact the shin,
The exercise assisting device according to claim 1, wherein the shin contact surface faces the thigh angle regulating portion side. The exercise assisting device has a thigh angle adjustment unit,
The exercise assistance device according to claim 1, wherein the thigh angle adjustment unit changes a height position of the thigh angle regulation unit with respect to the footrest unit or an angle in a depth direction of the thigh angle regulation unit. The exercise assisting device has a contact detection unit and a calculation unit,
The contact detection unit is attached to the thigh angle regulation unit, and outputs a signal corresponding to a load applied to the contact detection unit,
The exercise assistance according to any one of claims 1 to 3, wherein the calculation unit determines whether or not at least one of a thigh and a buttock is in contact with the thigh angle regulation unit based on an output of the contact detection unit. apparatus. The exercise assisting device has a thigh distance detection unit and a calculation unit,
The thigh distance detection unit is attached to the thigh angle regulation unit, and outputs a signal corresponding to the distance between the thigh distance detection unit and the thigh or the buttocks,
The exercise assisting device according to any one of claims 1 to 3, wherein the calculation unit determines whether or not a thigh or a buttock has approached the thigh angle restriction unit based on an output of the thigh distance detection unit.