JP3220669U - Load measuring device - Google Patents

Abstract

An object of the present invention is to provide a load measuring device capable of easily grasping a load applied to a subject's foot. A load measuring device has a load measuring clog and a receiver. The load measurement clogs are fixed to the foot holding portion 15 holding the foot of the patient 10 (subject), the pressure receiving plate 16 under which the patient receives a load under the foot holding portion, and the pressure receiving plate to detect the reaction force from the floor surface 14 And a transmitter for wirelessly transmitting a signal from the pressure sensor. The receiver includes a display screen, a storage device, a receiving unit that receives a signal, an operation unit that calculates a load based on the received signal, a recording unit that records the calculated load in a storage device, and the calculated load. A display unit is provided to display on the display screen. By letting the patient put on the load measurement clogs, the load applied to the patient's foot can be grasped simply by looking at the display screen of the receiver. [Selected figure] Figure 2

Description

  The present invention relates to a load measuring device that measures the load applied to the lower extremities of rehabilitation patients and the like.

  In rehabilitation of patients whose sequelae remains in the lower limbs due to fractures etc., gait training is performed. In gait training it may be necessary to limit the load on the patient's foot.

  Patent Document 1 describes a load warning shoe that can be worn by a patient during walking training. The load warning shoe comprises a strain sensor that detects a load on the sole and an alarm sound generator. The load warning shoe issues an alarm when the load applied to the sole exceeds a preset reference value.

Japanese Utility Model Publication No. 63-154029

  Depending on the degree of progress of rehabilitation, the load limitation on the patient's foot may vary. Therefore, there is a demand for a doctor who instructs rehabilitation and a physical therapist who supports the patient to accurately grasp the load applied to the leg of the patient at the time of walking training. In addition, there is a demand also for the patient who performs rehabilitation and the family who want to grasp the load applied to the foot at the time of walking training.

  An object of the present invention is to provide a load measuring device capable of easily grasping a load applied to a foot at the time of walking training.

  In order to solve the above-described problems, the load measuring device of the present invention receives a load of a foot holding portion for holding a subject's foot, a load of the subject's foot held by the foot holding portion below the foot holding portion. A load measurement clog including a rigid pressure receiving plate, a pressure sensor attached to the lower surface of the pressure receiving plate to detect a reaction force from a floor surface, and a transmitting unit wirelessly transmitting a signal from the pressure sensor; A storage device, a receiving unit for receiving the signal, an operation unit for calculating a load of the subject corresponding to the reaction force based on the received signal, a recording unit for recording the load in the storage device, and the load And a receiver including a display unit for displaying on the display screen.

In the present invention, the load measurement clog is provided with a pressure sensor which detects a reaction force from the floor surface on a rigid pressure receiving plate which receives a load of the subject. In addition, the load measurement shoe wirelessly transmits a signal from the pressure sensor. On the other hand, the receiver calculates the load of the person corresponding to the reaction force from the floor based on the received signal. The receiver also displays the calculated load on the display screen. Therefore, if the subject performing walking training in rehabilitation wears the load measurement clogs, the load applied to the subject's foot can be grasped by viewing the display screen of the receiver. Furthermore, the storage device of the receiver records the load on the subject on the foot. Therefore, the data of the recorded load can be used after the end of the walking training. Here, when a signal is transmitted by connecting a cable between the load measurement clog and the receiver, the cable may interfere with the subject's walking training. On the other hand, in the present invention, the load measurement shoe and the receiver are connected by wireless communication. Therefore,
The subject can perform rehabilitation without worrying about the cable.

  In the present invention, the transmitting unit samples and transmits the signal at a constant period, the receiving unit sequentially receives the signal, and the calculating unit calculates the weight each time the signal is received. The recording unit may sequentially record the calculated loads, and the display unit may sequentially display the calculated loads. In this way, it is possible to grasp the ever-changing load of the subject in walking training. Also, in this way, it is possible to leave the history of the load of the subject, which changes constantly in walking training, as data.

In the present invention, the load measurement clogs, as the pressure sensor, is a first front pressure sensor fixed to one side in the width direction of the front portion of the pressure receiving plate to detect the reaction force, the front portion of the pressure receiving plate A second front pressure sensor fixed to the other side in the width direction to detect the reaction force, a first rear pressure sensor fixed to one side in the width direction of the rear portion of the pressure receiving plate to detect the reaction force And a second rear pressure sensor fixed to the other side in the width direction of the rear portion of the pressure receiving plate to detect the reaction force, and the transmission unit may use the first front pressure sensor as the signal. First front signal, second front signal from the second front pressure sensor, first rear signal from the first rear pressure sensor, and second rear signal from the second rear pressure sensor, Send each
The computing unit calculates a first front load based on the first front signal as the load, calculates a second front load based on the second front signal, and calculates a second front load based on the first rear signal. A first rear load is calculated, and a second rear load is calculated based on the second rear signal, and the first front load, the second front load, the first rear load, and the first rear load are calculated. (2) Calculate the total load obtained by totaling the rear load, and the recording unit records the first front load, the second front load, the first rear load, the second rear load, and the total load. Preferably, the display unit displays the first front load, the second front load, the first rear load, the second rear load, and the total load. In this way, at the time of walking training, it can be grasped at which part of the sole of the foot of the subject the load is concentrated. Therefore, it becomes easy to correct the walking posture of the subject based on the load of each part of the sole. Further, since the total load is calculated based on the signals from the four pressure sensors, the load applied to the entire sole of the subject can be accurately grasped.

  In the present invention, the receiver can include a speaker, and a notification unit that causes the speaker to ring when the total load exceeds a preset reference value. In this way, it is possible to prevent an excessive load on the subject's foot during walking training.

  In the present invention, the foot holding unit includes a holding unit main body having elasticity, holds the subject's foot in a state of wearing a care shoe, and the holding unit main body is an opening into which the toe of the care shoe is inserted. A front side holding portion provided with the heel portion, and a rear side holding portion provided with the heel mounting portion on which the heel portion of the care shoe is placed and a heel contact portion capable of coming into contact with the heel portion of the care shoe from behind; The holding portion may be fixed to the pressure receiving plate, and the rear side holding portion may be capable of being separated upward from the pressure receiving plate. In this way, it is possible to separate the heel of the care shoe from the pressure receiving plate when the subject walks. Therefore, the movement of the load of the subject in the back and forth direction at the time of walking training can be accurately grasped.

In the present invention, the foot holding portion includes a belt, and the holding portion main body extends in the width direction of the pressure receiving plate between the front side holding portion and the rear side holding portion to one side in the width direction. An intermediate holding portion provided with a projecting first projection and a second projection projecting to the other side, a front connecting portion connecting the front holding portion and the intermediate holding portion, the intermediate holding portion and the rear holding A rear side connecting portion for connecting to the portion, the first protrusion includes a first locking portion capable of locking the belt, and the second protrusion is capable of locking the belt A second locking portion is provided, the intermediate holding portion is fixed to the pressure receiving plate, and the belt is bridged to the first locking portion and the second locking portion via the back of the care shoe. It can be In this way, by adjusting the length of the belt, the foot holding part can hold the foot in the state of wearing the care shoe.

  In the present invention, the foot holding portion includes a belt, and the holding portion main body includes a front side holding member and a rear side holding member positioned behind the front side holding member, and the front side holding member is The rear holding member includes a front holding portion having an opening into which the toe of the care shoe is inserted, and the rear holding member has a width of the pressure receiving plate between the rear holding portion, the front holding member, and the rear holding portion. And a rear side connecting the intermediate holding portion and the rear side holding portion, and an intermediate holding portion provided with a first protrusion protruding in one direction and a second protrusion protruding in the other side. A connecting portion, the first protrusion includes a first locking portion capable of locking the belt, and the second protrusion includes a second locking portion capable of locking the belt The front holding member and the intermediate holding portion of the rear holding member are fixed to the pressure receiving plate; Belt can be assumed to be bridged to the care the first engaging portion and the second engaging portion through the shoe upper. According to this configuration, the holding portion main body for holding the subject's foot can be constituted by two members, the front side holding member and the rear side holding member. Further, by adjusting the length of the belt, the foot holding portion can hold the foot in a state of wearing the care shoe.

  In this case, the pressure receiving plate includes a front side fixing portion to which the front side holding member is fixed, and the front side holding member is a front side holding member first fixing portion for fixing the front side holding member to the front side fixing portion. And a front holding member second fixing portion, the front holding member first fixing portion is positioned in front of the front holding member second fixing portion, and the front holding member first fixing portion and the front holding member first fixing portion One of the two fixing portions may be selectively overlapped with the front fixing portion, and the front holding member may be fixed to the pressure receiving plate. In this manner, the position of the front side holding member on the pressure receiving plate can be adjusted in the front-rear direction in accordance with the size of the care shoe worn by the subject.

  Further, the pressure receiving plate includes a rear side fixing portion to which the rear side holding member is fixed, and the rear side holding member fixes the rear side holding member to the middle side holding portion. A rear holding member first fixing portion and a rear holding member second fixing portion, the rear holding member first fixing portion being located in front of the rear holding member second fixing portion, One of the side holding member first fixing portion and the rear side holding member second fixing portion is selectively overlapped with the rear side fixing portion, and the rear side holding member is fixed to the pressure receiving plate can do. In this manner, the position of the rear side holding member on the pressure receiving plate can be adjusted in the front-rear direction in accordance with the size of the care shoe worn by the subject.

  In the present invention, it is desirable that the load measurement clogs have the same side shape and plan shape, and have a measurement aid clog which does not include the pressure sensor and the transmission unit. In this way, the load applied to one of the test subject's feet can be accurately measured by putting the load measurement clogs on one of the test subject's feet and putting the measurement assistance clogs on the other foot.

  According to the present invention, by looking at the display screen of the receiver, it is possible to grasp the load applied to the foot of the subject wearing the load measurement clog.

It is an explanatory view of a load measuring device to which the present invention is applied. It is a side view of a state where a patient put on load measurement shoes. It is a front view, a top view, a rear view, and a bottom view of a load measurement clog. It is an exploded perspective view of a load measurement clog. It is a schematic block diagram of a control system of a load measuring device. It is explanatory drawing of the display screen of a receiver. It is a perspective view of the load measurement clogs of a modification.

  Hereinafter, a load measuring device which is an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an explanatory view of a load measuring device to which the present invention is applied. FIG. 2 is a side view of the subject wearing the load measuring shoe. The load measuring device 1 is used to measure the load applied to the lower limbs of a patient who is performing rehabilitation in a hospital, a rehabilitation facility, or the like. As shown in FIG. 1, the load measuring device 1 includes a load measuring clog 2, a measurement assisting clog 3, and a receiver 4 capable of wireless communication with the load measuring clog 2.

  In the rehabilitation walking training, the patient 10 (subject) wears the load measurement clogs 2 on one foot 11 and the measurement assistance clogs 3 on the other foot 11. In addition, as shown in FIG. 2, the patient 10 wears the load measurement clogs 2 and the measurement assistance clogs 3 while wearing the care shoes 13. Here, as shown in FIG. 1, the load measurement clogs 2 and the measurement assistance clogs 3 have symmetrical shapes. Further, the load measurement clogs 2 and the measurement assisting clogs 3 have the same side shape and plan shape. Therefore, the patient 10 can put the load measurement clogs 2 on one of the feet 11 for which the load needs to be measured and put the measurement assistance clogs 3 on the other foot 11.

(Load measurement geta)
3 (a) is a front view of the load measurement clogs 2, FIG. 3 (b) is a plan view of the load measurement clogs 2, and FIG. 3 (c) is a rear view of the load measurement clogs 2. FIG. 3D is a bottom view of the load measurement clog 2. FIG. 4 is an exploded perspective view of the load measuring shoe. FIG. 5 is a schematic block diagram of a control system of the load measuring device.

  As shown in FIG. 2, the load measurement clogs 2 have a foot holding portion 15 for holding the foot 11 of the patient 10 and a rigidity of receiving the load of the patient 10 held by the foot holding portion 15 below the foot holding portion 15. A pressure receiving plate 16 is provided. The pressure sensor 17 is attached to the lower surface of the pressure receiving plate 16 to detect a reaction force from the floor surface, and a transmission unit 18 for wirelessly transmitting a signal from the pressure sensor 17.

  As shown in FIG. 3D, the pressure receiving plate 16 has a pressure receiving plate main body 20 having a rectangular shape when viewed in the vertical direction, and a pair of bends extending downward from both ends of the pressure receiving plate main body 20 in the width direction. And 21. The bending portion 21 extends in the front-rear direction at a constant height. In this example, the pressure receiving plate 16 is made of metal, and has a rigidity that does not bend by 1 mm or more when a load of 100 kg is applied to the center.

  The pressure sensor 17 and the transmission unit 18 are fixed to the lower surface of the pressure receiving plate main body 20. As shown in FIG. 4, the transmission unit 18 is fixed to the pressure receiving plate main body 20 by the fixing tool 19.

The load measurement clogs 2 are fixed to one side in the width direction of the front side portion of the pressure receiving plate 16 as the pressure sensor 17 and the first front side pressure sensor 17 (1) for detecting a reaction force, the width of the front side portion The second front pressure sensor 17 (2) fixed to the other side of the direction to detect the reaction force, the first rear pressure fixed to one side in the width direction of the rear side of the pressure receiving plate 16 to detect the reaction force A sensor 17 (3) and a second rear pressure sensor 17 (4) fixed to the other side in the width direction of the rear portion of the pressure receiving plate 16 to detect a reaction force are provided. Each pressure sensor 17 (1) to 17 (4) is a load cell. As shown in FIG. 4, each of the pressure sensors 17 (1) to 17 (4) is fitted inside the frame-shaped first fixing member 23, and the frame-shaped second fixing member 24 is mounted on the pressure receiving plate main body 20. It is held down.

  In the pressure receiving plate main body portion 20, rectangular opening portions 20a are provided at positions overlapping the respective pressure sensors 17 (1) to 17 (4) when viewed from the vertical direction. That is, at the four corners of the pressure receiving plate main body 20, openings are provided. These four openings interfere with the displacement portion and the pressure receiving plate main portion 20 when the displacement portion of each of the pressure sensors 17 (1) to 17 (4) is displaced upward by receiving the reaction force from the floor surface. To avoid. Therefore, when each pressure sensor 17 (1)-17 (4) and the pressure receiving plate main-body part 20 do not interfere, these opening parts can be abbreviate | omitted.

  Below the pressure sensors 17 (1) to 17 (4), as shown in FIG. 4, a square-shaped first plate member 25 is disposed. Further, a square-shaped second plate member 26 is disposed below the first plate member 25. The first plate member 25 is a rigid plate, and in this example, is made of aluminum. The second plate member 26 is an elastic plate material, and is made of rubber in this example. As shown in FIG. 2, the second plate member 26 protrudes below the bent portion 21 of the pressure receiving plate 16. Therefore, when the patient 10 wears the load measurement clogs 2, the second plate member 26 contacts the floor surface and the pressure receiving plate 16 does not contact the floor surface 14. Each of the pressure sensors 17 (1) to 17 (4), when the patient 10 wearing the load measurement clogs 2 walks, moves from the floor surface 14 via the second plate member 26 and the first plate member 25. Detect the force.

  As shown in FIG. 3D, the transmitting unit 18 includes a transmitting unit 27, a battery 28, a case 29 accommodating the transmitting unit 27 and the battery 28, and a switch 30 provided outside the case 29. Prepare. As shown in FIG. 2, when the load measurement clogs 2 are viewed from the side, the transmission unit 18 is hidden in the bending portion 21. That is, the transmission unit 18 is located above the lower ends of the pair of bending portions 21.

  As shown in FIG. 5, each pressure sensor 17 (1) to 17 (4) is connected to the transmission unit 27. When the switch 30 is turned on, the power from the battery 28 is supplied to the pressure sensors 17 (1) to 17 (4) and the transmitting unit 27. Thus, the transmission unit 27 wirelessly transmits the signals from the pressure sensors 17 (1) to 17 (4). More specifically, the transmission unit 27 converts analog signals from the pressure sensors 17 (1) to 17 (4) into digital signals. Then, the transmission unit 27 samples the digital signal at a constant cycle and transmits the signal according to the Bluetooth (registered trademark) communication standard. In this example, the transmission unit 27 samples a digital signal at a cycle of 0.5 seconds. The sampling cycle can be set and may be shorter than 0.5 seconds. Also, the sampling period may be longer than 0.5 seconds.

  Next, the foot holding portion 15 includes a holding portion main body 31 having elasticity, and a belt 32 (see FIG. 2). The holding portion main body 31 is made of rubber or silicon. The foot holding unit 15 holds the foot 11 of the patient 10 in a state of wearing the care shoe 13.

  As shown in FIGS. 3 and 4, the holding portion main body 31 includes a front holding member 35 and a rear holding member 36 located behind the front holding member. As shown in FIG. 4, the front side holding member 35 is fixed to the front side fixing portion 38 provided to the pressure receiving plate 16, and the rear side holding member 36 is fixed to the rear side fixing portion 39 provided to the pressure receiving plate 16. Ru. The front fixing portion 38 is located in front of the rear holding member 36. The front fixing portion 38 and the rear fixing portion 39 are through holes penetrating the pressure receiving plate 16 in the vertical direction.

The front side holding member 35 includes a front side holding portion 35 a having an opening 41 into which the toe of the care shoe 13 is inserted. The front holding member 35 (the front holding portion 35 a) is fixed to the pressure receiving plate 16 at a portion located rearward of the opening 41. Here, the front side holding member 35 is provided with a front side holding member first fixing portion 42 and a front side holding member second fixing portion 43 for fixing the front side holding member 35 to the front side fixing portion 38 behind the opening 41. . The front holding member first fixing portion 42 is located in front of the front holding member second fixing portion 43. In this example, the front holding member first fixing portion 42 and the front holding member second fixing portion 43 are holes.

  When the front side holding member 35 is fixed to the pressure receiving plate 16, one of the front side holding member first fixing portion 42 (hole) and the front side holding member second fixing portion 43 (hole) is selected, and the front side fixing portion Overlap 38 (through hole). In this example, the front holding member second fixing portion 43 (hole) is selected and overlapped with the front fixing portion 38 (through hole). The bolt 45 passing through the front holding member second fixing portion 43 (hole) and the front holding member second fixing portion 43 (hole) and a nut (not shown) fastened to the bolt 45 from below the pressure receiving plate 16 The front side holding member 35 is fixed to the pressure receiving plate 16. Here, if the front side holding member second fixing portion 43 (hole) is selected to overlap the front side fixing portion 38 (through hole) and the front side holding member 35 is fixed to the pressure receiving plate 16, the front side holding member 35 is back Can be moved to Therefore, the fixed position of the front side holding member 35 to the pressure receiving plate 16 can be adjusted in the front-rear direction.

  The rear side holding member 36 includes a rear side holding portion 53 including a heel mounting portion 51 on which the heel portion of the care shoe 13 is placed and a heel contact portion 52 that can abut from behind on the heel portion of the care shoe 13; An intermediate holding portion 54 extending in the width direction of the pressure receiving plate 16 between the member 35 and the rear side holding portion 53, and a rear connection portion 55 connecting the intermediate holding portion 54 and the rear side holding portion 53 are provided. The rear side connection portion 55 is a band-like one side connection portion 55 (1) connecting the one side portion in the width direction of the intermediate holding portion 54 and the one side portion in the width direction of the rear side connection portion 55 A band-like other side connection portion 55 (2) connecting the other side portion in the width direction 54 and the other side portion in the width direction of the rear side connection portion 55 is provided. The one side connection portion 55 (1) and the other side connection portion 55 (2) are separated in the width direction.

  The rear side holding portion 53 is provided with a slit 53a of a circular arc of which the central portion in the width direction protrudes rearward on the rear side portion. The front side of the rear side holding portion 53 with respect to the slit 53 a is the hook mounting portion 51, and the rear side of the slit 53 a is the hook abutting portion 52.

  The intermediate holding portion 54 includes a first protrusion 56 that protrudes to one side in the width direction and a second protrusion 57 that protrudes to the other side. The first protrusion 56 includes a first locking portion 56 a that can lock the belt 32, and the second protrusion 57 includes a second locking portion 57 a that can lock the belt 32. The first locking portion 56a and the second locking portion 57a are flat through holes that extend in the front-rear direction. Further, the intermediate holding portion 54 includes a rear holding member first fixing portion 58 and a rear holding member second fixing portion 59 for fixing the rear holding member 36 to the rear fixing portion 39. The rear holding member first fixing portion 58 is located in front of the rear holding member second fixing portion 59. In this example, the rear holding member first fixing portion 58 and the rear holding member second fixing portion 59 are holes.

  When fixing the rear side holding member 36 to the pressure receiving plate 16, one of the rear side holding member first fixing portion 58 (hole) and the rear side holding member second fixing portion 59 (hole) is selected and It overlaps with the side fixing portion 39 (through hole). In this example, the rear side holding member first fixing portion 58 (hole) is selected and overlapped with the rear side fixing portion 39 (through hole). Then, the rear holding member first fixing portion 58 (hole) and the rear side fixing portion 39 (through hole) are passed by a bolt 46 and a nut (not shown) fastened to the bolt 46 from below the pressure receiving plate 16. The side holding member 36 is fixed to the pressure receiving plate 16. Here, if the rear side holding member second fixing portion 59 (hole) is selected and overlapped on the rear side fixing portion 39 (through hole) and the rear side holding member 36 is fixed to the pressure receiving plate 16, the rear side holding member 36 can be moved forward. Therefore, the fixing position of the rear side holding member 36 to the pressure receiving plate 16 can be adjusted in the front-rear direction.

When the load measurement clogs 2 are put on the patient 10, the foot 11 of the patient 10 who wears the care shoe 13 is placed on the front side holding member 35 and the rear side holding member 36. And, as shown in FIG.
A portion on the tip end side of the opening 41 in the front side holding member 35 is pulled upward, and the toe of the shoe 13 is inserted into the opening 41. Further, the heel contact portion 52 of the rear side holding member 36 is pulled upward, and the heel contact portion 52 is brought into contact with the heel of the care shoe 13 from behind. Furthermore, the belt 32 is bridged over the first locking portion 56 a and the second locking portion 57 a via the back of the care shoe 13. Thereby, the care shoe 13 fixes the worn foot 11 to the foot holding portion 15. As the belt 32, Velcro (registered trademark) or the like can be used.

(Measurement assistance geta)
As shown in FIG. 1, the measurement assisting clogs 3 include the foot holding portion 15 identical to the load measuring clogs 2 and the pressure receiving plate 16 identical to the load measuring clogs 2. Accordingly, the measurement assisting clogs 3 have the same side shape and plan shape as the load measuring clogs 2. On the other hand, the measurement assisting clogs 3 do not include the pressure sensors 17 (1) to 17 (4). The measurement assisting clogs 3 includes a rectangular parallelepiped block 60 in place of the first fixing member 23, the second fixing member 24, the pressure sensors 17, and the first plate member 25. The second plate member 26 is attached to the lower surface of the block 60. Moreover, the measurement assisting clogs 3 do not include the transmission unit 18 (transmission unit). That is, the transmission unit 18 is not fixed to the lower surface of the pressure receiving plate 16.

(Receiving machine)
FIG. 6 is an explanatory diagram of a display screen of the receiver 4. As shown in FIG. 5, the receiver 4 includes a display screen 61, a storage device 62, a speaker 63, and a control device 64. The display screen 61 is a liquid crystal display or an organic EL display, and in this example, is a touch panel. The storage device 62 is a non-volatile memory. The controller 64 comprises a CPU. The control device 64 includes a reception unit 65, an operation unit 66, a recording unit 67, a display unit 68, and a notification unit 69.

  The receiving unit 65 sequentially receives signals (digital signals) transmitted from the load measurement clogs 2 in a constant cycle. Each time the operation unit 66 receives a signal, the operation unit 66 of the patient 10 corresponding to the reaction force from the floor surface 14 detected by each pressure sensor 17 (1) to 17 (4) of the load measurement clogs 2 based on the signal. Calculate the load 70. The recording unit 67 sequentially records the calculated load 70 in the storage device. In addition, when recording the load 70 in the storage device 62, the recording unit 67 records the load 70 and the recording date and time in association with each other. The display unit 68 sequentially displays the calculated load 70 on the display screen 61.

  More specifically, from the load measurement clogs 2, as a signal, the first front signal from the first front pressure sensor 17 (1), the second front signal from the second front pressure sensor 17 (2), the first back The first rear side signal from the side pressure sensor 17 (3) and the second rear side signal from the second rear side pressure sensor 17 are respectively transmitted. Therefore, the computing unit 66 sequentially calculates the first front load 70 (1) based on the first front signal as the load 70, and sequentially calculates the second front load 70 (2) based on the second front signal. The first rear load 70 (3) is sequentially calculated based on the first rear signal, and the second rear load 70 (4) is sequentially calculated based on the second rear signal. In addition, the calculation unit 66 is a total load obtained by summing the first front load 70 (1), the second front load 70 (2), the first rear load 70 (3), and the second rear load 70 (4). Calculate 70 (5) sequentially. The recording unit 67 includes a first front load 70 (1), a second front load 70 (2), a first rear load 70 (3), a second rear load 70 (4), and a total load 70 (5). Record sequentially. The display unit 68 is, as shown in FIG. 6, a first front load 70 (1), a second front load 70 (2), a first rear load 70 (3), a second rear load 70 (4), And display the total load 70 (5) sequentially.

The notification unit 69 causes the speaker 63 to ring when the calculated total load 70 (5) exceeds a predetermined reference value. The reference value is stored in advance in the storage device 62. Therefore, when the total load 70 (5) is calculated, the notification unit 69 refers to the storage device 62 and compares the reference value with the total load 70 (5). Then, when the total load 70 (5) exceeds the reference value, the notification unit 69 causes the speaker 63 to ring. The reference value stored and held in the storage device 62 can be rewritten.

  Here, the receiver 4 of this example is a smart phone. That is, the smartphone has the display screen 61, the storage device 62, the speaker 63, and the control device 64. When the smartphone is used as the receiver 4, dedicated application software is installed and operated on the smartphone. Thereby, the control device 64 is caused to function as one including the reception unit 65, the calculation unit 66, the storage unit, the display unit 68, and the notification unit 69. The reference value is stored in the storage device 62 through application software.

(how to use)
When measuring the load 70 applied to the lower leg of the patient 10 in the walking training for rehabilitation, the patient 10 wears the load measurement clogs 2 on one foot 11 whose function is degraded, and the measurement assistance to the other foot 11 Wear Geta 3 In this example, the patient 10 wears the load measurement clogs 2 and the measurement assistance clogs 3 while wearing the care shoes 13.

  Next, the switch 30 of the transmission unit 18 of the load measurement clogs 2 is turned on. Thus, when the pressure sensors 17 (1) to 17 (4) and the transmitting unit 27 operate, the signals from the pressure sensors 17 (1) to 17 (4) are wirelessly transmitted to the outside through the transmitting unit 27. Be done.

  In parallel with this, the application software is launched on the smartphone. As a result, the smartphone is referred to as the receiver 4 including the reception unit 65, the calculation unit 66, the storage unit, the display unit 68, and the notification unit 69. Here, when the application software is activated, a SCAN button 75 and a CONNECT button 76 are displayed on the display screen 61 as shown in FIG. Accordingly, the SCAN button 75 is tapped to detect the load measurement clogs 2 (the transmitting unit 27), and the CONNECT button 76 is tapped to establish a wireless connection between the receiver 4 and the load measurement clogs 2. Thereby, the receiver 4 receives the signal from each pressure sensor 17 (1)-17 (4) by a fixed period.

  Here, when the patient 10 performs walking training, the receiver 4 detects each pressure sensor 17 (1) to 17 (4) based on the signal from each pressure sensor 17 (1) to 17 (4). The loads 70 (1) to (4) corresponding to the reaction force and the total load 70 (5) are calculated. Also, as shown in FIG. 6, the receiver 4 has four display regions 61 on one side of the foot 11 (the inner side on the front side of the sole, the outer side on the front side of the sole, and the rear side of the sole). Each load 70 (first front load 70 (1), second front load 70 (2), first rear load 70 (3), second rear applied to the inner portion and the rear outer portion of the sole) Display the side load 70 (4)). Furthermore, the receiver 4 displays on the display screen 61 the total load 70 (5) applied to the entire foot sole. Also, the receiver 4 updates these displays at a constant cycle.

  In addition, the receiver 4 includes loads 70 (first front load 70 (1), second front load 70 (2), first rear load 70 (3), and the like) applied to four portions of the sole of the foot 11 The second rear load 70 (4) and the total load 70 (5) are stored in the storage device 62 sequentially in association with the recording time.

  Here, when the total load 70 (5) exceeds a predetermined reference value, the speaker 63 sounds.

(Action effect)
In this example, the load measurement clogs 2 are provided with a pressure sensor 17 that detects a reaction force from the floor surface 14 on the lower surface of the pressure receiving plate 16 that receives the load 70 from the patient 10. The load measurement clogs 2 wirelessly transmit the signal from the pressure sensor 17. On the other hand, the receiver 4 that receives the signal calculates the load 70 of the patient 10 corresponding to the reaction force from the floor surface 14 based on the signal. Also, the receiver 4 displays the calculated load 70 on the display screen 61. Therefore, by letting the patient 10 who performs walking training in rehabilitation wear the load measurement clogs 2, the load 70 applied to the foot 11 of the patient 10 can be grasped only by looking at the display screen 61 of the receiver 4. Furthermore, the load 70 applied to the foot 11 of the patient 10 is recorded in the storage device 62 of the receiver 4. Therefore, the data of the recorded load 70 can be used after the end of the walking training.

  Here, when a signal is transmitted by connecting a cable between the load measurement clogs 2 and the receiver 4, the cable may interfere with the walking training of the patient 10. On the other hand, in this example, the load measurement clogs 2 and the receiver 4 are connected by wireless communication. Thus, the patient 10 can perform rehabilitation without worrying about the cable.

  Moreover, in this example, the transmission part 27 samples and transmits the signal from each pressure sensor 17 (1)-17 (4) by a fixed period. On the other hand, the computing unit 66 of the receiver 4 calculates the load 70 each time a signal is received. The recording unit 67 sequentially records the calculated load 70. The display unit 68 sequentially displays the calculated load 70. Therefore, according to the present embodiment, it is possible to monitor the load 70 of the patient 10 which is constantly changing in walking training. Moreover, the history of the load 70 of the patient 10 changing every moment in walking training can be left as data.

  Further, in the present example, the display screen 61 of the receiver 4 includes four portions of the foot 11 (the inner portion on the front side of the sole, the outer portion on the front side of the sole, the inner portion on the rear side of the sole, and the sole The respective loads 70 (1) to (4) applied to the rear outer side portion of the wheel are displayed respectively. Therefore, at the time of walking training, it can be grasped at which part of the foot sole of the foot 11 of the patient 10 the load 70 is concentrated. Therefore, it becomes easy to correct the walking posture or the like of the patient 10 based on the loads 70 (1) to (4) of each part of the foot sole. In addition, since the receiver 4 calculates the total load 70 (5) based on the signals from the four pressure sensors 17 (1) to (4), the total load 70 applied to the entire sole of the patient 10 (5 Can accurately understand).

  Moreover, in this example, the receiver 4 is provided with the alerting | reporting part 69 which rings the speaker 63, when the total load 70 (5) exceeds the preset reference value. Therefore, in the walking training, it is possible to prevent the excessive load 70 from being applied to the foot 11 of the patient 10 in advance.

  Furthermore, since the rear side holding portion 53 can be separated upward from the pressure receiving plate 16, the foot holding portion 15 can separate the heel from the pressure receiving plate 16 when the patient walks. Accordingly, the movement of the load 10 of the patient 10 in the front-rear direction during walking training can be accurately grasped.

  Further, the foot holding unit 15 includes a holding unit main body 31 having elasticity and a belt 32. Therefore, by adjusting the length of the belt 32, the foot 11 can be held by the foot holding portion 15 in a state in which the care shoe 13 is worn.

  Furthermore, in the present embodiment, the holding portion main body 31 for holding the foot 11 of the patient 10 is composed of two members, the front holding member 35 and the rear holding member 36. The fixed position to the pressure receiving plate 16 can be adjusted in the front-rear direction. Therefore, the fixed position of the front side holding member 35 and the fixed position of the rear side holding member 36 can be adjusted according to the size of the care shoe 13 worn by the patient 10 to hold the care shoe 13 securely.

Further, in the present embodiment, the measurement assisting clogs 3 have the same side shape and planar shape as the load measuring clogs 2. Therefore, the load 70 applied to one foot 11 of the patient 10 can be accurately measured by putting the load measurement clogs 2 on one leg 11 of the patient 10 and putting the measurement assistance clogs 3 on the other foot 11.

(Modification)
FIG. 7 is a perspective view of a load measurement shoe according to a modification. In the load measurement clogs 2A of this embodiment, the holding portion main body 31 of the foot holding portion 15 is formed of a single elastic member. The configuration of the holding portion main body 31 of the load measurement clogs 2A is different from that of the load measurement clogs 2, but the other configuration is the same as that of the load measurement clogs 2. Therefore, the holder main body 31 will be described, and the other description will be omitted. Moreover, the same code | symbol is attached | subjected to the structure corresponding to the load measurement clogs 2, and the description is abbreviate | omitted.

  In the load measurement clogs 2A, the holding portion main body 31 includes the front holding portion 81 provided with the opening 41 into which the toe of the care shoe 13 is inserted, the heel mounting portion 51 on which the heel portion of the care shoe 13 is placed, and the care shoe 13 And a rear holding portion 53 provided with a heel contact portion 52 that can be abutted from behind in the heel portion. Further, the holding portion main body 31 extends in the width direction of the pressure receiving plate 16 between the front holding portion 81 and the rear holding portion 53 and protrudes to the other side and the first projection 56 which protrudes to one side in the width direction. Middle holding portion 54 having a second projection 57, a front connecting portion 82 connecting the front holding portion 81 and the middle holding portion 54, and a rear connection connecting the middle holding portion 54 and the rear holding portion 53. And a unit 55. The first protrusion 56 includes a first locking portion 56 a that can lock the belt 32, and the second protrusion 57 includes a second locking portion 57 a that can lock the belt 32. Further, the front side holding portion 81 and the intermediate holding portion 54 are fixed to the pressure receiving plate 16, and the rear side holding portion 53 can be separated upward from the pressure receiving plate 16. Even in this manner, the foot holding portion 15 can hold the foot 11 of the patient 10 wearing the care shoe 13.

  Here, when the holding portion main body 31 is formed of a single elastic member, the plurality of holding portion main bodies 31 having different sizes in the front-rear direction are facilitated, and the size of the care shoe 13 worn by the patient 10 In accordance with the above, the holder body 31 of appropriate size is selected and fixed to the pressure receiving plate 16. Even in this manner, the care shoe 13 can be held securely.

  Although the patient 10 holds the foot 11 on the foot holding portion 15 in a state of wearing the care shoe 13, the patient 10 can also hold the foot 11 directly on the foot holding portion 15.

DESCRIPTION OF SYMBOLS 1 ... load measurement apparatus, 2 ... load measurement geta, 3 ... measurement assistance geta, 4 ... receiver, 10 ... patient, 11 ... patient's foot, 13 ... care shoe, 15 ... foot holding part, 16 ... pressure receiving plate, 17 , 17 (1) to 17 (4): pressure sensor, 18: transmission unit, 20: pressure receiving plate main body, 21: bent portion, 23: first fixing member, 24: second fixing member, 25: first plate Members 26 second plate member 27 transmitting portion 28 battery 29 case 30 switch 31 main body 32 belt portion 35 front holding member 36 rear holding member 38 ... front side fixing portion, 39 ... back side fixing portion, 41 ... opening, 42 ... front side holding member first fixing portion, 43 ... front side holding member second fixing portion, 45 ... bolt, 46 ... nut, 51 ... wedge mounting portion, 52: Abutment portion 53: Rear side holding portion 53a: Slit 54: Intermediate holding portion 55: Side connection portion 56: first protrusion 56a: first locking portion 57: second protrusion 57a: second locking portion 58: rear side holding member first fixing portion 59: rear side holding Member second fixed part, 60: block, 61: display screen, 62: storage device, 63: speaker, 64: control device, 65: receiving portion, 66: computing portion, 67: recording portion, 68: display portion, 69 ... notification unit, 70, 70 (1)-(4) ... load, 70 (5) ... total load, 75 ... SCAN button on the screen, 81 ... front side holding portion, 82 ... front side connecting portion

Claims (10)

A foot holding portion for holding the subject's foot, a rigid pressure receiving plate for receiving the load of the subject's foot held by the foot holding portion below the foot holding portion, and attached to the lower surface of the pressure receiving plate A load measurement clog, comprising: a pressure sensor that detects a reaction force of the sensor; and a transmitter that transmits a signal from the pressure sensor by radio.
A display screen, a storage device, a reception unit for receiving the signal, an operation unit for calculating a load of the subject corresponding to the reaction force based on the received signal, a recording unit for recording the load in the storage device, A receiver including a display unit for displaying the load on the display screen;
A load measuring device characterized by having. The transmission unit samples and transmits the signal at a constant period,
The receiving unit sequentially receives the signal;
The calculation unit calculates the load each time the signal is received,
The recording unit sequentially records the calculated load.
The load measurement device according to claim 1, wherein the display unit sequentially displays the calculated loads. The load measurement clogs are, as the pressure sensor, a first front pressure sensor fixed to one side in the width direction of the front portion of the pressure receiving plate to detect the reaction force, and the other in the width direction of the front portion of the pressure receiving plate A second front pressure sensor fixed to the side to detect the reaction force, a first rear pressure sensor fixed to one side in the width direction of the rear portion of the pressure receiving plate to detect the reaction force, and the pressure receiving pressure A second rear pressure sensor fixed to the other side in the width direction of the rear portion of the plate to detect the reaction force,
The transmission unit may use, as the signal, a first front signal from the first front pressure sensor, a second front signal from the second front pressure sensor, and a first rear signal from the first rear pressure sensor. And a second rear signal from the second rear pressure sensor, respectively;
The computing unit calculates a first front load based on the first front signal as the load, calculates a second front load based on the second front signal, and calculates a second front load based on the first rear signal. A first rear load is calculated, and a second rear load is calculated based on the second rear signal, and the first front load, the second front load, the first rear load, and the first rear load are calculated. 2 Calculate the total load which added the rear side load,
The recording unit records the first front load, the second front load, the first rear load, the second rear load, and the total load.
The display according to claim 1 or 2, wherein the display unit displays the first front load, the second front load, the first rear load, the second rear load, and the total load. Load measuring device.   The load measuring device according to claim 3, wherein the receiver comprises: a speaker; and a notification unit that causes the speaker to ring when the total load exceeds a preset reference value. The foot holding unit includes a holding unit main body having elasticity, and holds the subject's foot in a state of wearing a care shoe,
The holding portion main body includes a front holding portion including an opening into which the toe of the care shoe is inserted, a heel mounting portion on which a heel portion of the care shoe is placed, and a heel which can contact from behind with the heel portion of the care shoe And a rear holding portion provided with a contact portion,
The front holding portion is fixed to the pressure receiving plate,
The load measuring device according to any one of claims 1 to 4, wherein the rear side holding portion is separable upward from the pressure receiving plate. The foot holder comprises a belt,
The holding portion main body extends in the width direction of the pressure receiving plate between the front side holding portion and the rear side holding portion and has a first protrusion protruding to one side in the width direction and a second protruding portion to the other side. An intermediate holding portion provided with a protrusion, a front connecting portion connecting the front holding portion and the intermediate holding portion, and a rear connecting portion connecting the intermediate holding portion and the rear holding portion,
The first protrusion includes a first locking portion capable of locking the belt;
The second protrusion includes a second locking portion capable of locking the belt;
The intermediate holding portion is fixed to the pressure receiving plate,
The load measuring device according to claim 5, wherein the belt is bridged over the first locking portion and the second locking portion via the back of the care shoe. The foot holder comprises a belt,
The holding unit main body includes a front holding member and a rear holding member located rearward of the front holding member.
The front side holding member comprises a front side holding portion having an opening into which the toe of the care shoe is inserted,
The rear holding member is a first protrusion extending in the width direction of the pressure receiving plate between the rear holding portion, the front holding member and the rear holding portion, and projecting to one side in the width direction. And an intermediate holding portion provided with a second projection projecting to the other side, and a rear connection portion connecting the intermediate holding portion and the rear holding portion,
The first protrusion includes a first locking portion capable of locking the belt;
The second protrusion includes a second locking portion capable of locking the belt;
The front holding member and the intermediate holding portion of the rear holding member are fixed to the pressure receiving plate;
The load measuring device according to claim 5, wherein the belt is bridged over the first locking portion and the second locking portion via the back of the care shoe. The pressure receiving plate includes a front fixing portion to which the front holding member is fixed,
The front side holding member includes a front side holding member first fixing portion and a front side holding member second fixing portion for fixing the front side holding member to the front side fixing portion,
The front holding member first fixing portion is located in front of the front holding member second fixing portion.
One of the front holding member first fixing portion and the front holding member second fixing portion is selectively overlapped with the front fixing portion, and the front holding member is fixed to the pressure receiving plate. The load measuring device according to claim 7. The pressure receiving plate includes a rear fixing portion to which the rear holding member is fixed,
The rear side holding member includes a rear side holding member first fixing portion and a rear side holding member second fixing portion for fixing the rear side holding member to the rear side fixing portion in the intermediate holding portion,
The rear holding member first fixing portion is located in front of the rear holding member second fixing portion.
One of the rear holding member first fixing portion and the rear holding member second fixing portion is selectively overlapped with the rear fixing portion, and the rear holding member is fixed to the pressure receiving plate. The load measuring device according to claim 7 or 8 characterized by things.   10. The device according to any one of claims 1 to 9, characterized in that the load measurement clogs have the same side shape and plan shape and have a measurement aid clog that is not provided with the pressure sensor and the transmission unit. Load measuring device.