JP5193106B2 - Body balance measuring device - Google Patents

Description

  The present invention relates to a body balance measuring device that measures the position of the center of gravity of a subject.

  2. Description of the Related Art Conventionally, a body balance measuring device that measures the position of the center of gravity of a subject is known. As this body balance measuring device, there is one proposed in Patent Document 1, for example. The weight scale with a balance measurement function described in Patent Document 1 includes an apparatus main body and a step board (mounting plate) disposed on the upper side of the apparatus main body, and the subject forms a flat surface. The center of gravity position of the subject can be measured together with the body weight based on measurement data obtained by a plurality of weight sensors provided on the apparatus main body by being placed on the upper surface of the platform (see Patent Document 1 and FIG. 2). ).

  However, since the entire upper surface of the platform on which the subject is placed during measurement is formed in a flat shape, there is a possibility that the position where the foot is placed, for example, the position of the buttocks, may be placed at a different position each time it is measured. If the position of the buttock is different every time it is measured, there is a possibility that an error occurs in the measurement of the position of the center of gravity of the subject. Therefore, it is preferable that the subject always places the buttocks at the same position.

  On the other hand, the applicant of the present invention, in the weight scale, on the upper surface of the step platform, the heel placing portion for placing the heel is recessed from the other portion so that the foot toe portion is placed so as to be recessed from the other portion. It has been proposed that it is formed to have a low height so that the subject can put the buttocks on the same position each time the body weight is measured.

JP 2007-315914 A

  However, if the part on which the buttocks is placed is recessed from the other parts, such as the above scale, on the balance measuring device, the posture of the subject naturally leans backward during body balance measurement, and the weight is reduced. The foot tends to be closer to the buttocks, and the center of gravity tends to be closer to the buttocks.

  The present invention can be directed to put the buttocks on the subject at the same position, and the weight of the subject is not placed near the buttocks side of the foot when measuring the body balance. For the purpose of provision.

In order to solve the above-mentioned problems, the invention of claim 1 is based on the detection data, while detecting the weight of the subject on the step by using at least three weight sensors. A body balance measuring device capable of measuring the position of the center of gravity of the subject, wherein the step platform is a footrest placement portion for placing a foottip portion and a footrest for placing a heel portion of a foot comprises a portion, the Kakatono portion guiding portion disposed on the entire peripheral portion of the Kakatono portion, wherein the foot mounting portion and Kakatono part, at the same height with each other The hook mounting portion guide portion has a ring shape that is disposed on the entire circumference of the rod mounting portion so as to protrude above the rod mounting portion with a predetermined width. together and a one that exhibits, on its upper face, a top, gradually height to the top of the heel placing portion And an outer peripheral wall formed so that the height gradually decreases outward from the top in the radial direction, and the inner peripheral wall has an inclination angle of the outer peripheral wall. Provided is a body balance measuring device which is formed so as to be larger than a corner .

  According to a second aspect of the present invention, the step includes a step body having the foot tip mounting portion and the heel mounting portion, and the heel mounting portion guide portion is moved more than the heel mounting portion by a moving means. It is preferable that a range from the protruding position to at least a substantially same height position as the heel mounting portion can be moved in the vertical direction with respect to the step body.

  According to a third aspect of the present invention, the body balance measuring apparatus further includes an operation start switch for the moving means, and the moving means moves the guide for the heel mounting portion when the operation start switch is operated. It is preferable to be configured so as to start moving downward from the position where it is placed.

  According to a fourth aspect of the present invention, the body balance measuring device further includes a control unit that controls movement of the guide unit for the heel mounting unit, and the control unit is set after the weight sensor starts detecting the weight. After elapse of time, it is preferable to control the saddle placement unit guide unit to start moving downward from the protruding position.

  According to a fifth aspect of the present invention, the body balance measuring device further includes a control unit that controls movement of the guide unit for the heel mounting unit, and the control unit is configured so that the weight is detected after the weight sensor starts detecting the weight. After the amplitude of the sensor has converged within a certain width, it is preferable to control so that the saddle placement portion guide portion starts to move downward from the protruding position.

  According to the first aspect of the present invention, the guide portion for the saddle placement portion is disposed on a part or the whole of the peripheral portion of the saddle placement portion so as to protrude upward from the saddle placement portion. Thereby, in the body balance measurement, it is possible to always guide the subject's buttocks so as to be placed on the heel placing portion with almost no displacement, and the body balance measurement can be accurately performed. On the other hand, since the heel placing portion is configured to be at the same height as the foot tip placing portion, the center of gravity can be measured in a posture in which the subject stands naturally when measuring the body balance. Therefore, the posture of the subject is naturally inclined backward as in the case where the heel mounting portion is formed so as to be recessed from other portions, so that the weight tends to be applied closer to the heel side of the foot. Can be prevented.

  According to claim 2, the saddle placement portion guide portion has a range from the position protruding from the saddle placement portion by the moving means to at least the same height position as the saddle placement portion with respect to the platform body. It can be moved in the vertical direction.

  Thereby, for example, when measuring the body balance, if the guide part for the heel placing part is lowered to the same height position as the heel placing part, the heel placing part guide part can be prevented from hitting the sole. A part of the body weight of the subject can be prevented from being placed on the guide for the placement unit. Therefore, it is possible to make the saddle placement portion guide portion have no influence on the body balance measurement, and to make the body balance measurement more accurate.

  According to the third aspect of the present invention, the moving means further includes an operation start switch, and the moving means lowers the saddle placement portion guide portion from a position protruding above the saddle placement portion when the operation start switch is operated. It is configured to start moving to the side.

  Thereby, for example, when the subject determines that his / her foot is securely placed on the heel placing portion, for example, if the operation start switch is turned on, the heel placing portion guide portion is moved downward from the protruding position. Can be lowered. Therefore, the examinee can lower the heel placement portion guide portion by his / her own intention, and the body balance measurement can be made even more accurate.

  According to a fourth aspect of the present invention, the controller further includes a control unit that controls the movement of the guide unit for the saddle placement unit. The part is controlled to start moving downward from the protruding position.

  Thereby, the guide part for saddle placement parts can be automatically lowered from the protruding position to the lower side without any operation by the subject. At that time, the movement of the guide unit for the saddle placement unit is started after the set time has elapsed since the weight sensor started detecting the weight. Therefore, it is possible to start the movement of the guide unit for the saddle placement unit in accordance with individual differences such as a person, and to make it easy to use.

  According to claim 5, after the weight sensor has started to detect weight, after the amplitude of the weight sensor has converged within a certain width, the controller moves the saddle placement portion guide portion downward from the protruding position. Control to start.

  Thereby, the guide part for saddle placement parts can be automatically lowered from the protruding position to the lower side without any operation by the subject. In addition, in the state where the amplitude of the weight sensor is reduced, it is possible to perform measurement with a part of the body weight of the subject not applied to the guide unit for the heel placement unit, and to further measure the body balance. Can be done accurately.

It is a front view of the body balance measuring device of a 1st embodiment of the present invention. It is a perspective view from the lower side of the body balance measuring apparatus of FIG. It is an expansion perspective view of the eaves mounting part and the eaves mounting part guide part in 1st Embodiment. . It is explanatory drawing which showed the positional relationship of the height of a foot tip mounting part, a heel mounting part, and the guide part for heel mounting parts. It is an expansion perspective view of other embodiment of the guide part for ridge mounting parts in 1st Embodiment. It is explanatory drawing of the body balance measuring apparatus of 2nd Embodiment of this invention. It is a graph showing the relationship between the load concerning a weight sensor, and time.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a plan view of a body balance measuring apparatus having a body composition weight measuring function according to a first embodiment of the present invention, FIG. 2 is a perspective view of the apparatus according to the first embodiment as viewed from obliquely below, and FIG. FIG. 3 is an enlarged perspective view of a heel placing portion and a heel placing portion guide portion.

  The body balance measuring apparatus 1 of the first embodiment is implemented as an apparatus having a body composition weight measuring function capable of measuring the center of gravity position of a subject and measuring body composition such as body fat percentage and body weight.

  This body balance measuring device 1 includes a device main body 2 having a leg portion 21 shown in FIG. 2 and a step 3 shown in FIG. 1 on which a subject is placed.

  The step platform 3 includes a step body 30 and a saddle placement unit guide 4. The step body 30 is configured such that the outer periphery of each of the left end side and the right end side is formed in an arc shape, and the overall shape is substantially circular.

  On the upper surface of the footrest body 30, there are provided two saddle placement portions, a port placement portion 31a and a starboard placement portion 31b, which are disposed on both the left and right sides of the rear side. These portside placement unit 31a and starboard placement unit 31b are configured to place the left buttocks of the subject and the buttocks A1 (FIG. 4) of the right foot when measuring the center of gravity and weight, respectively. It is a set part.

  Further, in this embodiment, the port side placing part 31a and the starboard placing part 31b are respectively arranged so as to be able to come into contact with the collar part A1 that covers and places them from above. An electrode plate 24 is attached. These measurement electrode plates 24 are used together with an application electrode plate 27 described later when measuring the body composition, and detect a resistance potential generated by a current applied to the application electrode plate 27.

  A foot placement prevention part 32 is provided at the front left and right central part on the upper surface of the step body 30. The toe placement prevention unit 32 places the left foot part (a part of the left foot substantially ahead of the arch part) and the right foot part (similarly, the part of the right foot substantially ahead of the arch part). In this way, the center portion of the left foot tip portion and the center portion of the right foot tip portion are directed so that they are always placed at substantially the same position during measurement.

  In this embodiment, the foot tip placement preventing portion 32 is projected upward from the upper surface of the footrest main body 30 so that the subject feels uncomfortable when placing the left foot tip portion or the right foot tip portion. Thus, the subject is directed to place the left toe portion on the left side of the toe placement preventing portion 32 and the right toe portion on the right side of the toe placement preventing portion 32. .

  Further, in this embodiment, the width in the left-right direction of the foot tip placement preventing portion 32 is configured to be the smallest minimum width V on the rear end side and gradually increase toward the front side.

  In addition, on the left and right sides of the foot tip placement preventing portion 32 on the upper surface of the footrest main body 30, two foot tip placement portions, a left foot tip placement portion 33a and a right foot tip placement portion 33b, are provided, respectively. . The left foot tip placement portion 33a and the right foot tip placement portion 33b are set to place the left foot tip portion and the right foot tip portion A2 (FIG. 4) of the subject when measuring the center of gravity and the body weight, respectively. Part.

  These left foot tip placement portion 33a and right foot tip placement portion 33b are the same as the left foot placement portion 31a and the starboard placement portion 31b when the apparatus 1 is installed on an installation surface such as a floor surface. It is formed to be the same height.

  More specifically, as shown in FIG. 4, the left foot tip placement portion 33a and the right foot tip placement portion 33b have a height H2 from the lower surface of the leg portion 21 in the apparatus main body 2 so that the left foot placement portion 31a and the right foot placement portion 33b It is set to be the same height as the height H1 of the heel mounting portion 31b.

  Further, in this embodiment, as shown in FIG. 1, the application electrode 27 is attached to the left foot tip placement portion 33a and the right foot tip placement portion 33b so as to cover substantially the whole from above. Yes. These application electrodes 27 are of the same thickness as the measurement electrode plate 24, and the left foot tip portion and the right foot tip portion of the subject placed on the left foot tip placement portion 33a and the right foot tip placement portion 33b. The electrodes are in contact with each other, and current is applied from these application electrodes 27 to the left and right toe portions that are in contact with each other.

  As shown in FIG. 2, the step base body 30 configured as described above is fixedly attached to the upper side of a base plate member 26 of the apparatus main body 2 described later so as to cover from the upper side. .

  In this first embodiment, the saddle placement portion guide portion 4 is formed integrally with the footrest main body 30, and as shown in FIGS. 1 and 3, the two port placement placement portions 31a and the right side are provided. It is comprised from what exhibits the ring shape arrange | positioned by the predetermined | prescribed width | variety in each perimeter part with the collar mounting part 31b. Thereby, each of the port side placing part 31a and the starboard placing part 31b is partitioned and formed in a circular shape.

  Moreover, the guide part 4 for the saddle placement part in this embodiment has a top part 41 on its upper surface, and an inner peripheral wall 42 formed so that the height gradually increases from the saddle placement parts 31a, 31b to the top part 41. The outer peripheral wall 43 is formed so that the height gradually decreases from the top 41 to the outside in the radial direction.

  And the height H3 from the lower surface of the leg part 21 of the apparatus main body 2 in the top part 41, as shown in FIG. 4, the leg part 21 of the apparatus main body 2 in the port side mounting part 31a or the starboard mounting part 31b. It is formed so as to be higher than the height H1 from the lower surface.

  Further, in this embodiment, the inclination angle of the inner peripheral wall 42 is formed larger (steep angle) than the inclination angle of the outer peripheral wall 43. Thus, the subject can easily get the heel part into the heel placement parts 31a and 31b, and the sensation that the heel part is contained in the heel placement parts 31a and 31b can be obtained. On the other hand, by making the inclination angle of the outer peripheral wall 33a smaller than the inclination angle of the inner peripheral wall 42, the soles on the outer peripheral wall 43 are prevented from being painful.

  The apparatus main body 2 includes a base plate member 26 (shown in FIG. 2) having substantially the same outer peripheral shape as the step base body 30, and an A / D conversion is not shown between the base plate member 26 and the step base body 30. A measuring mechanism such as a vessel is housed.

  In this embodiment, the leg portion 21 of the apparatus main body 2 includes a left rear portion (appearing on the right rear portion side in FIG. 2), a right rear portion, and a left front portion as shown in FIGS. , And four of the first to fourth legs 21 arranged in the right front part.

  Each of the leg portions 21 includes a grounding portion that is grounded to a grounding surface such as a floor surface on the lower surface. In addition, a weight sensor 22 is disposed in each of them. The weight sensor 22 is for detecting a load (weight) applied to the step platform 3, and in this embodiment, is constituted by a load cell having a strain gauge.

  Then, these weight sensors 22 are provided at substantially lower positions of the port rest placement portion 31a, starboard placement portion 31b, left foot tip placement portion 33a, and right foot tip placement portion 33b of the step platform 3, respectively. It arrange | positions so that this load may be received.

  Further, as shown in FIG. 1, an operation unit 5 is attached to the apparatus main body 2. The operation unit 5 of this embodiment includes a display unit 51. The display unit 51 displays, for example, the measured weight and body composition numerically, and the measured barycentric position is displayed as a point on the XY axis plane. Cell display and 2D representation.

  In addition, a plurality of operation buttons 52 are provided on both the left and right sides of the display unit 51. By pressing the operation buttons 52, for example, information on age, height, sex, etc. when body composition is measured. Or selection of numerical data to be displayed on the display unit 51 can be performed.

  In addition, the operation unit 5 of this embodiment is connected to the apparatus main body 2 so as to be communicable by wire or wireless (in this embodiment, it is connected by wire although not shown) and is detachable from the apparatus main body 2. The body 5 on the upper side of the body can be measured by removing the operation unit 5 from the apparatus main body 2. Specifically, grip portions 53 that are gripped by hands are provided at both left and right ends of the operation portion 5, and measurement electrodes 54 and application electrodes 55 (shown in FIG. 2) are respectively provided in these grip portions 53. Is provided.

  In this embodiment, the measurement electrode 54 and the application electrode 55 are provided on each of the left and right grips 53 of the operation unit 5. However, the measurement electrode 54 and the application electrode 55 may be provided on either the left or right, and can be changed as appropriate.

  Although not shown, the operation unit 5 includes a memory that is a storage device that stores a program and the like of the system, and a CPU that is a control unit that executes the program and the like recorded in the memory.

  When the body balance is measured by the apparatus 1 configured as described above, for example, the apparatus 1 is installed on the floor surface, the power is turned on, and the operation button 52 of the operation unit 5 is operated to display the display unit 51. The position of the center of gravity is made displayable.

  Then, in that state, for example, the left foot buttock is placed on the port rest 31a of the step platform 3 and the right foot buttock is placed on the starboard placement portion 31b. At this time, since the saddle placement portion guide portion 4 is disposed on the entire circumference of the port placement portion 31a and the starboard placement portion 31b, the collar portion becomes the saddle placement portion guide portion 4. It is guided and the heel part can be naturally placed on the port side placing part 31a and the starboard placing part 31b.

  Therefore, when measuring, the heel portion can always be placed on the portside placement portion 31a and the starboard placement portion 31b with almost no displacement.

  In addition, the subject places the left toe portion on the left side of the toe placement preventing portion 32 so as not to be placed on the toe placement preventing portion 32, and the right toe portion is placed on the toe placement portion. The foot is placed on the right side of the foot tip placement preventing portion 32 so as not to be placed on the placement preventing portion 32. Further, at that time, for example, if the side surfaces of the left and right foot tips are brought into contact with the end face of the foot tip placement preventing portion 32, the left and right foot tips can always be in the same position.

  Thereby, each of the buttocks can be always aligned and positioned at a position substantially above the weight sensor 22 of each of the first and second leg portions 21. Further, the center portions of the left foot tip portion and the right foot tip portion can be arranged at positions substantially above the weight sensor 22 of the third and fourth leg portions 21, respectively.

  Then, the load applied to the step platform 3 is detected by each weight sensor 22 of the leg portion 21, and the center of gravity position is calculated based on the detection data detected by the control unit of the operation unit 5. In this embodiment, the calculation is performed as follows.

  First, the difference between the weight value applied to the weight sensor 22 from the port rest 31a and the weight value applied to the weight sensor 22 from the starboard mount 31b is obtained. Further, the difference between the weight value applied to the weight sensor 22 from the left foot tip placement portion 33a and the weight value applied to the weight sensor 22 from the right foot tip placement portion 33b is obtained. Then, the average value is used as detection data for the left and right misalignment.

  Further, the difference between the weight value applied to the weight sensor 22 from the port rest placement portion 31a and the weight value applied to the weight sensor 22 from the left foot tip placement portion 33a is obtained. Further, the difference between the weight value applied to the weight sensor 22 from the starboard placement portion 31b and the weight value applied to the weight sensor 22 from the right foot tip placement portion 33b is obtained. Then, the average value is used as detection data for the positional deviation before and after.

  Then, a table in which these detection data is plotted on, for example, an XY axis plane is generated, and the table is displayed on the display unit 51.

  When measuring the body weight with the apparatus 1, for example, by operating the operation button 52 of the operation unit 5, the weight measurement value is set in a displayable state on the display unit 51. In this state, it is placed on the step platform 3 as in the case of the body balance measurement. Thereby, the weight sensor 22 detects the body weight, and the control unit calculates (sums) the weight value based on the detection data. Then, the calculated weight value is displayed on the display unit 51.

  Further, when measuring the body composition of the subject's leg, for example, by operating the operation button 52 of the operation unit 5 to set the body composition measurement value in a displayable state on the display unit 51, An application possible state is set from the application electrode 27 provided on the step 3. In this state, the subject only needs to be placed on the platform 3 in the same manner as described above.

  Thereby, the resistance potential generated by the applied current is detected by the measurement electrode plate 24. And the control part of the operation part 5 is based on the detected impedance, the weight measurement value, the information of the height, age, sex, etc. of the subject previously inputted to the operation part 5, etc. The body composition such as the body fat percentage and the body fat amount is calculated and displayed on the display unit 51.

  In the case where the body composition is measured by arranging the measurement electrode plate 24 and the application electrode 27 on the heel placement portions 31a and 31b and the foot tip placement portions 33a and 33b as described above, The measurement guide plate 4 partitions the measurement electrode plate 24 disposed on the heel placement portions 31a and 31b and the application electrode 27 disposed on the foot tip placement portions 33a and 33b. Thereby, for example, even when it is placed on the heel placing portions 31a and 31b and the foot tip placing portions 33a and 33b with water adhering to the feet after bathing, both the electrodes 24 and 27 are conducted by the water. Can be prevented.

  When measuring the body composition of the upper part of the body of the subject, for example, by operating the operation button 52 of the operation unit 5, a current can be applied to the application electrode 55 provided in the operation unit 5. Then, the operation unit 5 is removed from the apparatus main body 2, and the left and right grips 53 are gripped by the left hand and the right hand, respectively, and the measurement electrode 54 and the application electrode 55 are brought into contact with the hand and the arm is extended.

  Accordingly, similarly, the impedance is detected by the measurement electrode 54, and the control unit of the operation unit 5 is based on the impedance, the weight measurement value, and the information such as the height of the subject input to the operation unit 5 in advance. The body composition such as the body fat percentage and the body fat amount in the upper part of the subject's body is calculated and displayed on the display unit 51.

  In addition, in the said 1st Embodiment, although the guide part 4 for the cage | basket mounting part was arrange | positioned in each circumference part of the portside mounting part 31a and the starboard mounting part 31b, it is in this form. Not limited, but can be changed as appropriate.

  For example, as shown in FIG. 5, the kite placement part guide unit 4 is disposed on a part of the periphery of the portside placement part 31 a or the starboard placement part 31 b, and the kite placement part guide unit 4 is disposed. You may make it form the groove | channel 45 connected to the exterior from the collar mounting parts 31a and 31b between both ends.

  Thereby, it is possible to make it easy to discharge the water, dust, and the like accumulated in the basket mounting portions 31a and 31b to the outside.

  Next, a second embodiment of the present invention will be described with reference to FIG. The saddle placement unit guide unit 140 in the second embodiment is configured to be movable up and down with respect to the platform body 130 and is configured to be moved up and down by a moving unit. This will be described in detail below.

  The saddle placement portion guide portion 140 in the second embodiment is configured separately from the footrest main body 130 and is inserted into an access hole 130 a provided in the footrest main body 130.

  The saddle placement portion guide portion 140 inserted into the insertion / exit hole 130a protrudes upward by a predetermined amount from the saddle placement portions 31a and 31b of the footrest main body 130 (the position indicated by the one-dot chain line in FIG. 5). ) To a vertical position that is approximately the same height as the saddle placement portions 31a and 31b.

  The moving means of this embodiment includes a servo motor 107 as a driving means and a connecting gear 106 connected to the servo motor 107 so as to be able to transmit rotation. The connecting gear 106 meshes with a meshing gear (not shown) provided in the saddle placement unit guide 140, and the guide gear for the saddle placement unit is rotated by the rotation of the connection gear 106 accompanying the operation of the servo motor 107. The unit 140 is moved up and down.

  In this embodiment, the control unit is communicably connected to the servo motor 107 and the weight sensor 22, and a set time for determining whether or not a set time has elapsed since the weight sensor 22 started to detect the weight. A progress determination means is provided.

  In addition, the said setting time is not specifically limited, It can change suitably. Further, in this embodiment, the subject can input the set time and change the setting as appropriate.

  In the second embodiment configured as described above, first, when the power is turned on, the servo motor 107 is operated and the connecting gear 106 rotates in the clockwise direction of FIG. With this rotation, the saddle placement portion guide portion 140 is disposed at a position (a position indicated by a one-dot chain line in the drawing) that protrudes upward by a predetermined amount from the saddle placement portions 31a and 31b of the footrest main body 130.

  In this state, it is placed on the platform 3 as in the first embodiment. When the weight is applied to the weight sensor 22, the control unit determines whether or not the set time has elapsed since the weight sensor 22 began to detect the weight by the set time elapse determination unit.

  When it is determined that the set time has elapsed, the control unit starts the operation of the servo motor 107. When the operation starts, the connecting gear 106 rotates counterclockwise in FIG. 5 in the direction opposite to the above.

  Then, along with this rotation, the saddle placement portion guide portion 140 is lowered to substantially the same height as the saddle placement portions 31a and 31b of the footrest main body 130.

  As a result, the saddle placement unit guide 140 can be automatically lowered to a position substantially the same as the saddle placement units 31a and 31b without any operation by the subject. In this state, the subject's sole does not hit the heel placement section guide section 140, and the heel placement section guide section 140 does not affect the body balance measurement. Furthermore, the body balance measurement can be made accurate.

  Further, at that time, since the movement of the rod placement unit guide unit 140 is started after the set time has elapsed since the weight sensor 22 started to detect the weight, for example, the feet are placed on the rod placement units 31a and 31b in a short time. According to individual differences such as a person or a person who takes a relatively long time, movement of the guide unit 140 for the placement unit can be started and can be easily used.

  In the second embodiment, the moving means is composed of the servo motor 107 and the connecting gear 106. However, the moving means is not limited to this, and can be changed as appropriate. For example, the moving means may include an air cylinder, and the saddle placement unit guide 140 may be moved up and down using the air cylinder.

  In the second embodiment, the control unit starts the operation of the servo motor 107 when the set time elapse determining means determines that the set time has elapsed since the weight sensor 22 started to detect the weight. Although the movement of the saddle placement unit guide unit 140 is started, the present invention is not limited to this, and can be changed as appropriate.

  For example, it is assumed that the control unit includes an amplitude convergence determination unit that detects the amplitude of the weight sensor by the detection unit and determines whether or not the detected amplitude has converged within a set range. Then, when the amplitude convergence determination means determines that the amplitude of the weight sensor has converged within the set width W (shown in FIG. 7) after the weight sensor starts to detect the weight, the saddle placement unit guide unit 140. Is controlled so as to start moving at the same height as the heel mounting portions 31a and 31b.

  For example, when the subject is setting the heel part on the heel mounting parts 31a and 31b, the body movement is large and the amplitude of the load of the weight sensor is large as shown in FIG. Even if it performs, it is easy to produce an error.

  However, in the state where the amplitude of the weight sensor becomes smaller and converges within the set width W with the passage of time, a part of the body weight of the subject is not applied to the heel placement unit guide unit 140. If measured, body balance measurement can be performed more accurately. The set width W is not particularly limited and can be changed as appropriate.

  In the second embodiment, the control unit automatically starts the movement of the saddle placement unit guide unit 140. However, the present invention is not limited to this mode. The movement of the saddle placement unit guide unit 140 may be started when the subject operates the operation start switch and can be changed as appropriate.

  Specifically, for example, one of the operation buttons 52 of the operation unit 5 is set as an operation start switch of the servo motor 107 that forms part of the moving means. Then, when the subject presses the operation button 52 set as the operation start switch, the servo motor 107 starts to operate, whereby the start rod placement unit guide unit 140 starts to move downward. To do.

  By doing so, the subject lowers the heel rest section guide section 140 by pressing the operation button 52 when, for example, it is determined that his / her foot is securely placed on the heel rest section. Can do. Therefore, the examinee can lower the heel placement section guide section 140 by his / her own intention, and the body balance measurement can be made even more accurate.

  Further, when the operation start switch is provided as described above, if the operation start switch is also used as a measurement start switch by the weight sensor 22 and the operation start switch is pressed, the measurement by the weight sensor 22 is started at the same time. The downward movement of the saddle placement unit guide unit 140 is started. Or you may make it provide the switch of the measurement start by the weight sensor 22 separately from the operation start switch of the guide part 140 for cage | basket placement parts.

  Further, in the second embodiment, the saddle placement portion guide portion 140 is provided with the saddle placement portions 31a and 31b from a position protruding upward by a predetermined amount from the saddle placement portions 31a and 31b of the footrest main body 130. The range up to substantially the same height position can be moved up and down, but is not limited to this form and can be changed as appropriate.

  For example, the guide part 140 for the saddle placement unit is moved from a position protruding upward by a predetermined amount from the saddle placement parts 31a and 31b of the footrest main body 130 to a position submerged below the saddle placement parts 31a and 31b. You may make it move the range until it becomes up and down.

  Further, when the saddle placement portion guide 140 is lowered to the same height as the saddle placement portions 31a and 31b as in the second embodiment, the saddle placement portion guide 140 is The position may be slightly higher than the placement portions 31a and 31b. Therefore, the “same height position” as used in the present application includes a substantially same height position as in the case of the physically same height position as the saddle placement portions 31a and 31b.

  Moreover, in the said embodiment, although the gravity center position of the result of body balance measurement is displayed on a display part, it is not restricted to the thing of this form, For example instead of the display on a display part, or the display on a display part In addition, it may be notified by voice and can be changed as appropriate.

  In the above embodiment, four weight sensors 22 are provided. However, the present invention is not limited to this, and at least three weight sensors 22 may be provided so as to be separated from each other by a predetermined distance in the front-rear direction and the left-right direction. Can be changed as appropriate.

  Moreover, in the said embodiment, the foot tip part is always made into the left foot tip mounting part 33a and the right foot by the foot tip mounting prevention part 32 provided between the left foot tip mounting part 33a and the right foot tip mounting part 33b. Although it is intended to be placed on the first placement portion 33b, it is not limited to this form and can be changed as appropriate.

  For example, on the part of or the entire periphery of the left foot tip placement portion 33a and the right foot tip placement portion 33b, a foot tip placement portion guide portion that is higher than the foot tip placement portions 33a and 33b, You may make it form. Further, in this case, like the above-described heel placing portion guide portions 4 and 140, the foot tip placing portion guide portion is moved by at least a foot tip from a position higher than the foot tip placing portions 33a and 33b. You may make it move the range to the same height position as mounting part 33a, 33b.

  Moreover, in the said embodiment, although it comprised from the thing to which the body composition weight measurement function was attached as a body balance measuring apparatus of this invention, it can change suitably not only in this form. For example, a dedicated device that can measure only body balance measurement, a device that can measure body balance and body weight, or a device that can measure body balance and body composition, may be appropriately changed.

DESCRIPTION OF SYMBOLS 1 Body balance measuring device 2 Apparatus main body 3 Step stand 4,140 踵 Placement part guide part 5 Operation part 21 Leg part 22 Weight sensor 31a Portside placement part 31b Right foot placement part 33a Left foot tip placement part 33b Right foot tip Placement part

Claims (5)

By placing the subject on the step, the weight of the subject on the step is detected by at least three weight sensors, and the center of gravity of the subject can be measured based on the detection data. A body balance measuring device,
The step platform includes a foot tip placement portion for placing the foot tip portion, a heel placement portion for placing the heel portion of the foot, and a heel placement portion disposed on the entire periphery of the heel placement portion. And a guide for
The foot tip placement portion and the heel placement portion are configured to be at the same height position,
The guide unit for the saddle placement unit is configured to have a ring shape that is disposed on the entire circumference of the saddle placement unit with a predetermined width so as to protrude above the saddle placement unit. The top surface, the inner peripheral wall formed so that the height gradually increases from the saddle placement portion to the top portion, and the height gradually decreases radially outward from the top portion. And an outer peripheral wall formed on
The body balance measuring device , wherein the inner peripheral wall is formed so that an inclination angle thereof is larger than an inclination angle of the outer peripheral wall . The step includes a step body having the foot mounting portion and the heel mounting portion,
The saddle placement portion guide portion extends in a vertical direction with respect to the platform body from a position protruding from the saddle placement portion by a moving means to at least the same height position as the saddle placement portion. The body balance measuring apparatus according to claim 1, wherein the body balance measuring apparatus is movable. The body balance measuring device further includes an operation start switch of the moving means,
The said moving means is comprised so that the said guide part for saddle mounting parts may be started to move below from the said protrusion position at the time of operation of the said operation start switch. Body balance measuring device. The body balance measuring apparatus further includes a control unit that controls movement of the guide unit for the heel mounting unit,
The control unit controls the saddle placement unit guide unit to start moving downward from the protruding position after a set time has elapsed since the weight sensor started to detect weight. The body balance measuring device according to claim 2. The body balance measuring apparatus further includes a control unit that controls movement of the guide unit for the heel mounting unit,
The control unit starts moving the saddle placement unit guide unit downward from the protruding position after the amplitude of the weight sensor converges within a certain width after the weight sensor starts detecting the weight. The body balance measuring device according to claim 2 or 4, wherein the body balance measuring device is controlled as follows.

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