JP4483912B2 - Weight scale - Google Patents

Description

  The present invention relates to a scale for measuring body weight.

2. Description of the Related Art Conventionally, scales for measuring human weight are widely known. As such a weight scale, for example, a health management guideline advice device having a weight scale capable of measuring a human weight has been proposed. The weight scale in this health management guideline advice device has a scale body having a step (top cover) that has a flat and substantially rectangular parallelepiped shape along the installation surface, a lower side of the scale body, and a left rear portion and a right side of the scale body. It is assumed that there are installation surface abutment parts that abut on the installation surface such as the floor surface at four locations, the rear part, the left front part, and the right front part, and the measurer rests on the platform's platform and rests on the platform The body weight can be measured by detecting the load (body weight) (see Patent Document 1, FIG. 1 and FIG. 6).
Japanese Patent Laid-Open No. 2003-220048

  However, when the step a in the weight scale as described above is formed in a circular arc shape on both the left and right sides as shown in FIG. 8, for example, the adjacent installation surface contact portions b1 are connected to the left and right sides of the step a. The protrusion part c which protruded in the magnitude | size which can mount a leg | foot on the outer peripheral side from line Q1, Q2 will be made. If a foot is placed on such a protruding part c, the step a (the balance body) may be inclined. Therefore, the weight scale having the step a having the outer circumferences of the left and right sides formed in an arc shape is inferior in terms of safety, and it is difficult to provide a scale having a novel design desired by the user.

  In this case, for example, an inclination suppression portion d is provided in advance on the outer peripheral side of the step platform on the lower side of the projection portion c in the step platform a, and the operator places his feet on the projection portion c so that the step platform a is slightly It is also conceivable that the inclination restraining part d abuts on the installation surface when it is inclined to suppress the inclination of the main body of the scale relative to the installation surface. However, if the inclination suppressing part d is provided separately from the leg part b, the manufacturing process and the assembling process increase and the manufacturing cost increases.

  An object of the present invention is to provide a weight scale that includes an inclination suppression unit and can be manufactured at low cost.

In order to solve the above-described problem, the present invention provides a first aspect of the present invention, wherein a measurer is placed on a platform provided on a scale body in a state of being installed on an installation surface such as a floor surface. A weight sensor provided on a leg protruding to detect a weight of a measurer by detecting a load applied to the step, wherein the leg is disposed at a lower position on each of the front and rear sides of the step. Each of the leg portions is attached to the balance body so as to protrude downward from the balance body and accommodates the weight sensor. A sensor receiving member that receives the weight sensor from the lower side, and the sensor receiving member is formed so as to protrude downward from the lower surface of the receiving portion main body and is in contact with the setting surface Contact part And is urged downward by the urging member and is always urged downward by the urging member, and when the measurer is placed on the outer peripheral side of the pedestal on the lower side of the pedestal An inclination suppression unit that suppresses the inclination of the step with respect to the installation surface is provided, and the inclination suppression unit is located below the step so that the amount of protrusion of the installation surface abutting unit from the step to the lower side is less. in the so that protrudes on the side provided with the sensor receiving member extending portion provided in the sensor receiving member, wherein the sensor receiving member elongated portion, at least the right and left sides from the line connecting the installation surface contact portion between the adjacent A weight scale is provided that extends from the receiving portion main body toward the outer peripheral side so as to protrude toward the outer peripheral side and is disposed at least near the front and rear center of the step platform.

According to a second aspect of the present invention, the step has a curved outer periphery at least on both the left and right sides, and the leg includes a first leg disposed below the left rear portion of the step and a right rear portion. It is composed of four parts: a second leg part disposed on the lower side, a third leg part disposed on the lower side of the left front part, and a fourth leg part disposed on the lower side of the right front part. The sensor receiving member extending portion in the inclination suppressing portion is either the first leg portion or the third leg portion, or one of the second leg portion and the fourth leg portion. And at least the vicinity of the front and rear center of the platform.

According to a third aspect of the present invention, the inclination suppressing portion further includes a cylindrical body extending portion that extends from the cylindrical body in substantially the same shape as the sensor receiving member extending portion, and the cylindrical body extending portion. Preferably, the sensor receiving member is provided with a tilt preventing member configured to prevent the sensor receiving member from further tilting by contacting the sensor receiving member when the sensor receiving member is tilted .

According to claim 1 of the present application, the inclination suppressing portion that suppresses the inclination of the step with respect to the installation surface when the measurer is placed on the outer periphery of the step extends from at least one of the legs. By projecting to the outer peripheral side of at least the left and right sides from a line connecting adjacent installation surface contact portions in the step, and disposed at least near the front and rear center of the step, left or right of the step Even when a measurer is placed on the outer peripheral portion, the inclination suppressing portion can suppress the inclination of the balance body relative to the installation surface. Thereby, the safety of the measurer can be improved.
In addition, since the inclination suppressing portion is composed of an extending portion extending from each of the cylindrical body and the sensor receiving member, and the sensor receiving member is constantly urged downward by the urging member, the sensor receiving member However, even if the extension portion becomes long and has a considerable weight, it is possible to prevent the sensor receiving member from moving with respect to the cylinder by its own weight. Thereby, for example, when the weight scale is carried, the sensor receiving member can be prevented from moving with respect to the cylindrical body and generating abnormal noise, and the commercial value can be increased.

  At that time, since the inclination suppressing portion is extended from the leg portion, the same number of parts as the conventional one can be obtained, and an increase in the manufacturing process and the assembling process can be prevented, and it can be manufactured at low cost.

According to claim 2 of the present application, the sensor receiving member extending portion in the inclination suppressing portion includes the first leg portion disposed on the lower side of the left rear portion of the step platform and the third leg portion disposed on the lower side of the left front portion. From either one of the legs and either one of the second leg arranged on the lower side of the right rear part of the step and the fourth leg arranged on the lower side of the right front part, Since it is extended to at least the vicinity of the center of the front and back of the step, when the measurer is placed on the outer edge of the left end or the right end of the step, the tilt suppressor can more reliably tilt the step with respect to the installation surface. It can be suppressed and can be made safer.

  Hereinafter, the present invention will be specifically described with reference to the drawings. FIG. 1 is a plan view of a body composition weight scale according to one embodiment of the present invention, FIG. 2 is a right side view thereof, FIG. 3 is a bottom view, and FIG.

  The weight scale of this embodiment is implemented as a body composition weight scale 1 that can measure body weight and body composition such as body fat percentage. The body composition weight scale 1 includes a scale main body 2, leg portions 31 to 34 projecting from the lower side of the scale main body 2, inclination suppressing portions 41 to 44, and an operation portion 5.

  The main body 2 includes a step 21 on which a measurer who measures body weight or the like is placed. The step 21 of this embodiment 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 step 21, a left footpad placing clarification portion 22 a and a right footpad placing clarification portion 22 b are provided.

  The left footpad placing clarification part 22 a clearly indicates the position where the left foot of the measurer is to be placed, and is disposed at the left rear part on the upper surface of the step platform 21. Further, the right footpad placing clarification portion 22b clearly indicates the position where the measurer's right foot buttock is placed, and is symmetrical with the left footpad placing clarification portion 22a on the left rear portion of the upper surface of the step 21. Are arranged as follows.

  Further, in this embodiment, these left footpad placing explicit portion 22a and right footpad placing explicit portion 22b are substantially circular downward at a predetermined depth from the upper surface, as shown in FIGS. By forming it so as to be recessed in the shape, it is clearly shown that the measurer can understand the above.

  Further, the left footpad placing clarification portion 22a and the right footpad placing clarification portion 22b are each provided with a measuring electrode 24 so as to be in contact with the heel portion placed thereon. These measurement electrodes 24 are used together with an application electrode 27 described later when measuring the body composition, and detect a resistance potential generated by a current applied to the application electrode 27.

  In addition, a foot tip placement preventing portion 25 is provided at the left and right central portion on the front side of the upper surface of the step platform 21. The toe placement preventing unit 25 does not place the left foot part of the measurer (the part of the left foot that is substantially ahead of the arch part) and the right foot part (similarly, the part of the right foot that is substantially ahead of the arch part). In this way, the center part of the left toe part and the center part of the right toe part are directed so as to approach the upper positions of the third leg part 33 and the fourth leg part 34, respectively, which will be described later. In the embodiment, the foot tip placement prevention unit 25 is provided so as to project upward from the upper surface of the step 21 so that the measurer feels uncomfortable when placing the left foot tip portion or the right foot tip portion. The measurer is directed to arrange the left toe portion on the left side of the toe placement preventing portion 25 and the right foot portion on the right side of the toe placement preventing portion 25.

  In addition, in this embodiment, the width in the left-right direction of the foot tip placement preventing portion 25 is configured to be the smallest minimum width V on the rear end side and gradually increase toward the front side. The minimum width V is set to be approximately equal to the distance L1 between the left footpad placing explicit portion 22a and the right footpad placing explicit portion 22b.

  Further, the application electrodes 27 are attached to the left and right sides of the foot tip placement preventing portion 25 on the upper surface of the step 21 so as to form a pair of left and right, respectively. These application electrodes 27 are in contact with the left foot portion and the right foot portion of the measurer. Then, a 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 21 configured as described above is fixedly attached to the upper side of the base plate member 26 having substantially the same outer peripheral shape as the step base 21 so as to cover from the upper side. ing.

  The scale body 2 houses a scale mechanism such as an A / D converter (not shown) between the step 21 and the base plate member 26.

  Next, the legs 31 to 34 will be described. In this embodiment, the legs 31 to 34 are arranged on the left rear part of the base plate member 26 (shown on the right rear part side in FIGS. 3 and 4) as shown in FIGS. 3 and 4. 4 of the 1st leg part 31, the 2nd leg part 32 arrange | positioned at the right rear part, the 3rd leg part 33 arrange | positioned at the left front part, and the 4th leg part 34 arrange | positioned at the right front part It consists of two. Moreover, these leg parts 31-34 are comprised from the balance main body 2 and the separate synthetic resin in this embodiment.

  As shown in FIGS. 3 to 6, the first leg portion 31 includes a cylindrical body 6, a weight sensor 35 (shown in FIGS. 5 and 6), and a sensor receiving member 7 (in FIG. 6, the cylindrical body 6 and Only the weight sensor 35 is illustrated, and the sensor receiving member 7 is omitted).

  The cylindrical body 6 is fixedly attached to the lower surface of the base plate member 26 of the balance body 2 (not movable) at the upper end side (appearing at the lower end side in FIG. 6). Side) is protruded to the lower side of the base plate member 26 of the balance body 2 by a predetermined length. The cylindrical body 6 includes an outer peripheral wall 61 and an inner peripheral wall 62. Further, as shown in FIG. 3, the cylindrical body 6 has an outer peripheral wall 61 and an inner peripheral wall 62 in an arc shape centered on the center O of the outer peripheral arc of the base plate member 26 (step 21). A cylindrical body extending portion 63 formed by extending a predetermined length on the counterclockwise direction side in FIG. 3 and FIG. 4 (clockwise side in FIG. 1) is provided.

  Further, locking projections 64 are respectively provided on the inner surface of the outer peripheral wall 61 and the inner surface of the inner peripheral wall 62 (only those of the inner peripheral wall 62 appear in FIG. 6). These locking projections 64 are used as locking members for locking the sensor receiving member 7, and are provided at positions facing each other so as to protrude inside the cylindrical body 6.

  The weight sensor 35 is for detecting a load (weight) applied to the step 21 of the scale main body 2 and is constituted by a load cell having a strain gauge in this embodiment. The weight sensor 35 is disposed in the cylindrical body 6 at a position substantially below the left footpad placing indication portion 22a of the step 21 so as to receive a load mainly applied to the left footpad placing indication portion 22a. Has been.

  As shown in FIGS. 4 and 5, the sensor receiving member 7 includes a receiving portion main body 70, and an outer peripheral wall 73 and an inner peripheral wall 74 that protrude upward from the receiving portion main body 70. As shown in FIG. 5, the receiving portion main body 70 includes a receiving portion 71 that receives the weight sensor 35 from the lower side on the upper surface side. An installation surface abutting portion 72 is provided on the lower surface side of the sensor receiving member 7.

  The installation surface abutting portion 72 is a portion that abuts on an installation surface 100 such as a floor surface on which the body composition weight scale 1 is installed, and in this embodiment, a circular shape made of synthetic rubber that is separate from the receiving body 70. The thin plate member 77 is formed on the lower surface.

  Then, the upper surface side of the thin plate member 77 is bonded to the lower position of the receiving portion 71 on the lower surface of the receiving portion main body 70 by an adhesive means such as an adhesive, so that the installation surface abutting portion 72 is attached to the receiving portion main body 70. The lower surface is provided below the receiving portion 71. The installation surface abutting portion 72 is formed so as to protrude downward from the lower surface of the receiving portion main body 70.

  Further, the sensor receiving member 7 is provided with a sensor receiving member extending portion 76. As shown in FIGS. 3 and 4, the sensor receiving member extending portion 76 includes a receiving portion main body 70, an outer peripheral wall 73, and an inner peripheral wall 74 that are substantially the same as the outer peripheral wall 61 and the inner peripheral wall 62 of the cylindrical body 6. It is formed by extending in the counterclockwise direction of FIG. 3 (clockwise side of FIG. 1) in the same arc shape.

  Further, as shown in FIG. 5, the outer peripheral wall 73 and the inner peripheral wall 74 are formed with receiving holes 75 for receiving the locking projections 64 of the cylindrical body 6.

  The vertical height of the receiving hole 75 is higher than the vertical height of the locking projection 64 of the cylindrical body 6, and can move in the vertical direction in the receiving hole 75 with the locking projection 64 entering the receiving hole 75. It is said that.

  The sensor receiving member 7 configured as described above is fitted into the cylindrical body 6 so as to close the lower surface side of the cylindrical body 6 in a state where the locking projection 64 of the cylindrical body 6 is received in the receiving hole 75. The weight sensor 35 is received by the receiving portion 71 from below. Thereby, the sensor receiving member 7 is latched to the cylinder 6 so that a vertical movement is possible.

  The sensor receiving member 7 placed in the cylinder 6 is urged downward by a coil spring 8 as an urging member. Specifically, the upper side of the coil spring 8 is housed in a cylindrical spring housing portion 63a provided in the tubular body extending portion 63 of the tubular body 6, and the upper end of the coil spring 8 is the back of the spring housing portion 63a. It is in contact with the end face.

  The lower side of the coil spring 8 is accommodated in a cylindrical spring accommodating portion 76 a provided in the sensor receiving member extending portion 76 of the sensor receiving member 7 when the sensor receiving member 7 is put into the cylindrical body 6. At the same time, the lower end of the coil spring 8 comes into contact with the inner end surface of the spring accommodating portion 76a. As a result, the sensor receiving member 7 is constantly urged downward by the coil spring 8 in the direction of retreating from the balance body 2 and the cylindrical body 6. Further, the upper end of the locking projection 64 of the cylindrical body 6 is in contact with the upper inner wall surface 75 a of the receiving hole 75 by the biasing.

  Further, the inner diameter of the spring accommodating portion 63 a of the cylindrical body 6 and the spring accommodating portion 76 a of the sensor receiving member 7 in this embodiment is set to be substantially the same as the outer diameter of the coil spring 8. Thus, after the coil spring 8 is housed in the spring housing portion 63a of the tubular body 6 and the spring housing portion 76a of the sensor receiving member 7, the coil spring 8 causes the sensor receiving member 7 to move in the left-right direction (horizontal direction) relative to the tubular body 6. ) Can be prevented.

  Then, a detection body 35a having a spherical surface provided in the weight sensor 35 as shown in FIG. 5 is provided in the weight sensor 35 by preventing the displacement of the sensor receiving member 7 with respect to the cylindrical body 6 in the left-right direction. The detected body receiving portion 35b can be always in contact with a certain position of the detected body receiving portion 35b without causing a positional shift. Therefore, the load detection by the weight sensor 35 can be made accurate.

  Thus, the installation surface abutting portion 72 of the sensor receiving member 7 locked to the cylindrical body 6 is disposed at a position substantially below the left footpad mounting indication portion 22 a of the step 21 of the scale body 2.

  As shown in FIG. 3, the second leg portion 32 is disposed so as to be symmetric with the first leg portion 31 about the left and right center line P <b> 1 of the step 21, and the second leg portion 32. The distance L2 from the installation surface abutting portion 72 to the left and right center line P1 and the distance L3 from the installation surface abutting portion 72 of the first leg 31 to the left and right center line P1 are substantially the same. Is set to

  Further, although not shown, the installation surface abutting portion 72 of the second leg portion 32 is disposed substantially below the right footpad placement indicating portion 22b of the step 21 of the scale body 2. The rest of the second leg portion 32 has the same configuration as the first leg portion 31.

  The weight sensor 35 and the installation surface contact portion 72 of the third leg portion 33 are arranged below the left side (right side in FIG. 3) of the foot tip placement preventing portion 25 of the step platform 21. Further, as shown in FIG. 3, the distance L5 from the installation surface contact portion 72 of the third leg 33 to the left and right center line P1 of the step 21 is the installation surface contact portion of the first leg 31. 72 is configured to be longer than the distance L3.

  Further, the cylinder extending portion 63 of the cylindrical body 6 of the third leg 33 and the sensor receiving member extending portion 76 of the sensor receiving member 7 are clockwise in FIG. (Counterclockwise in FIG. 1). The other configuration is the same as that of the first leg portion 31.

  The fourth leg portion 34 is disposed so as to be symmetrical with the third leg portion 33 about the left and right center line P1 of the step platform 21 as a symmetry axis, and the installation surface abutting portion of the fourth leg portion 34 is arranged. A distance L4 from 72 to the left and right center line P1 is set to be longer than the distance L2 of the installation surface contact portion 72 of the second leg portion 32. The rest of the fourth leg 34 has the same configuration as the third leg 33.

  Next, the inclination suppression units 41 to 44 will be described. The inclination suppressing portions 41 to 44 are for suppressing the inclination of the step 21 with respect to the installation surface 100 (shown in FIG. 5) when a measurer is placed on the outer peripheral side of the step 21 of the scale body 2.

  As shown in FIGS. 3 and 4, the tilt suppressing portion of this embodiment includes a cylindrical body extending portion 63 of the cylindrical body 6 of the first leg portion 31 and a sensor receiving member extending portion of the sensor receiving member 7. A first inclination suppressing portion 41 configured from 76, a cylinder extending portion 63 of the cylindrical body 6 of the second leg portion 32, and a sensor receiving member extending portion 76 of the sensor receiving member 7. 2, a third inclination suppressing portion 43 including a cylinder extending portion 63 of the cylindrical body 6 of the third leg portion 33 and a sensor receiving member extending portion 76 of the sensor receiving member 7. And a fourth inclination suppressing portion 44 composed of a cylindrical body extending portion 63 of the cylindrical body 6 of the fourth leg portion 34 and a sensor receiving member extending portion 76 of the sensor receiving member 7. Has been.

  As shown in FIG. 5, the inclination suppressing portions 41 to 44 configured as described above are installed in such a manner that the body composition weight scale 1 makes the installation surface abutment portions 72 abut on the installation surface 100. Thus, it is arranged at a position higher than the installation surface abutting portion 72 and is in a non-contact state with the installation surface 100.

  As shown in FIG. 3, the first inclination suppressing part 41 and the third inclination suppressing part 43 are respectively provided for the first leg part 31 and the third leg part 33 adjacent thereto in the step 21. It protrudes from the line Q1 connecting the surface abutting portions 72 to the outer peripheral side, and is disposed at a position below the protruding portion 21a that protrudes to such a size that a foot can be placed thereon. In addition, the second inclination suppressing part 42 and the fourth inclination suppressing part 44 are formed by connecting the respective installation surface abutting parts 72 of the second leg part 32 and the fourth leg part 34 adjacent to the second leg part 32 in the step platform 21. It protrudes to the outer peripheral side of the step 21 from the line Q2 to be connected, and is arranged at a position below the protruding portion 21a protruding so as to be able to put a foot.

  In addition, the rear end portions of the third inclination suppressing portion 43 and the fourth inclination suppressing portion 44 are disposed at lower positions in the front and rear centers of the step platform 21.

  Returning to FIG. 1, the operation unit 5 will be described. The operation unit 5 of this embodiment includes a display unit 51 on the front side, and displays, for example, measured weight and body composition numerically on the display unit 51. 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 measuring the body composition, etc. 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 scale 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 scale body 2. The operation unit 5 is removed from the main body 2 and the body composition on the upper side of the body can be measured. 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. 4) 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 side, 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 device that executes the program and the like recorded in the memory.

  For example, when the body weight is measured by the body composition weight scale 1 configured as described above, each installation surface contact portion 72 of the body composition weight scale 1 is set in contact with the floor surface 100 as an installation surface. At the same time, the power is turned on and the operation button 52 of the operation unit 5 is operated so that the weight measurement value can be displayed on the display unit 51.

  In this state, for example, the left foot heel is placed on the left footpad placing clarification portion 22a of the platform 21 of the scale body 2, and the right foot heel is placed on the right footpad placing clarification portion 22b.

  Further, at that time, the measurer places the left toe portion so that it is on the left side of the left footpad placing indication portion 22a so as not to be placed on the toe placement preventing portion 25, and the right toe portion is In order not to be placed on the toe placement preventing portion 25, the right footpad placement indicating portion 22b is placed on the right side.

  As a result, each of the buttocks can be disposed in alignment with the weight sensor 35 and the installation surface contact portion 72 of each of the first leg portion 31 and the second leg portion 32. Further, the center of the left foot portion is positioned substantially above the weight sensor 35 and the installation surface contact portion 72 of the third leg portion 33, and the weight sensor 35 and the installation surface contact portion 72 of the fourth leg portion 34. The center portion of the right foot tip portion can be arranged so as to be aligned with each other at a substantially upper position.

  And the load concerning the step 21 is detected by each weight sensor 35 of the leg parts 31-34, and the operation part 5 calculates based on the data detected by each weight sensor 35, and displays it as a weight measurement value on the display part 51. indicate.

  At that time, the weight sensor 35 and the installation surface abutting portion 72 of each of the first leg portion 31 to the fourth leg portion 34 are disposed substantially below the portion where the weight of the measurer is applied. The weight can be detected directly as much as possible, and it can be made accurate.

  Further, when the measurer places the left foot on the protruding portion 21a on the left outer peripheral side of the step 21, for example, the first inclination suppressing unit 41 and the third inclination suppressing unit 43 are placed on the floor. Since it abuts on the surface 100, the step 21 hardly tilts with respect to the floor surface 100, and can be made safe.

  Similarly, when the measurer places the right foot on the protruding portion 21a on the right outer periphery side of the step platform 21, the second inclination suppressing portion 42 and the fourth inclination suppressing portion 44 abut on the floor surface 100. The step 21 hardly tilts with respect to the floor surface 100 and can be made safe.

  Further, in this embodiment, when the sensor receiving member 7 is deformed and tilted, the sensor receiving member 7 is a rib serving as a tilt receiving member for the sensor receiving member provided in the tube extending portion 63 of the tube 6. It is configured so that the sensor receiving member 7 does not tilt further in contact with 63a (shown in FIGS. 5 and 6), and can be made safer.

  Further, when measuring the body composition of the leg of the measurer, for example, by operating the operation button 52 of the operation unit 5, the body composition measurement value is set in a displayable state on the display unit 51 and the current is changed to the stepping plate. 21 is set to a state where it can be applied from the application electrode 27 provided on 21. In this state, the measurer only has to rest on the platform 21 as in the case of the weight measurement described above.

  Thereby, the resistance potential generated by the applied current is detected by the measurement electrode 24. Then, the operation unit 5 determines the body fat percentage and body of the leg of the measurer based on the detected impedance, the weight measurement value, the information such as the height, age, and sex of the measurer previously input to the operation unit 5. The body composition such as fat mass is calculated and displayed on the display unit 51.

  When measuring the body composition of the upper part of the body of the measurer, 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 scale body 2, and the left and right grips 53 are held with the left hand and the right hand to bring the hand into contact with the measurement electrode 54 and the application electrode 55, and the arm is extended.

  Accordingly, similarly, the impedance is detected by the measurement electrode 54, and the operation unit 5 determines the body of the measurer based on the impedance, the weight measurement value, and the information such as the height of the measurer previously input to the operation unit 5. 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 above embodiment, the leg portion is composed of four and the tilt suppression portion is constructed by extending from each of the leg portions, but the leg portion is composed of three or five or more. And you may make it extend the inclination suppression part from each of those leg parts.

  Moreover, in the said embodiment, although the inclination suppression part is extended from each leg part, it can change suitably not only in the thing of this form. For example, by extending from one or more of the leg portions, the inclination suppressing portion may be arranged below the protruding portion on the outer peripheral side of the scale main body (stepping platform).

  For example, one of the first leg portion 31 and the third leg portion 33 and one of the second leg portion 32 and the fourth leg portion 34 are provided with an inclination suppressing portion on one side thereof. You may make it extend from the side to the near position of the other side.

  Moreover, in the said embodiment, although the step 21 is comprised from the substantially circular shape, the shape of the step 21 is not restricted to this form, For example, a substantially elliptical thing, polygonal shapes, such as a rectangle, are used. A thing may be sufficient and can be changed suitably.

  Moreover, in the said embodiment, although the inclination suppression part is extended from the leg part to the position of the front-back center line P2 in the step stool 21, it is not restricted to this form, For example, it is a little forward position from the front-back center line P2. And may be arranged near the front / rear center in the step 21 or may extend beyond the front / rear center line P2 and can be changed as appropriate.

  In the above embodiment, the weight scale of the present invention is composed of a body composition weight scale. However, the weight scale of the present invention is not limited to this, and may be composed of, for example, a weight scale that measures only body weight. Can do.

It is a front view of the body composition weight scale of one embodiment of the present invention. It is a side view of FIG. It is a bottom view of FIG. It is the perspective view which looked at the body composition weight scale from the diagonally lower side. It is an expanded sectional view of a leg part. It is the perspective view which expanded the state which removed the sensor receiving member of the leg part. It is the VII-VII sectional view taken on the line of FIG. It is a front view of the step board of a prior art example.

Explanation of symbols

1 Body composition weight scale (weight scale)
2 Scale main body 5 Operation part 6 Tube 7 Sensor receiving member 31 1st leg part 32 2nd leg part 33 3rd leg part 34 4th leg part 41 1st inclination suppression part 42 2nd inclination suppression Part 43 Third inclination suppressing part 44 Fourth inclination suppressing part 72 Installation surface contact part

Claims (3)

When a measurer is placed on a platform provided on the scale body in a state where it is installed on a floor or other installation surface, a weight sensor provided on a leg protruding downward from the scale body is applied to the platform. A scale that detects a load and measures the weight of a measurer,
Each of the leg portions is composed of at least three portions disposed at lower positions on both the front and rear sides of the step platform, and each of the leg portions protrudes downward from the scale body. A cylindrical body that is mounted so as to be immovable and accommodates the weight sensor, and a sensor receiving member that receives the weight sensor from the lower side,
The sensor receiving member includes a receiving portion main body and an installation surface abutting portion that is formed so as to protrude downward from the lower surface of the receiving portion main body, and is engaged with the cylinder body so as to be vertically movable. And is always urged downward by the urging member,
On the lower side of the step, there is provided an inclination suppressing unit that suppresses the inclination of the step with respect to the installation surface when a measurer is placed on the outer peripheral side of the step.
The inclination suppressing section, to be less than the amount of projection of the downward side from stool of the installation surface abutting portion, the sensor received provided in the sensor receiving member in the so that protrudes downward from the platform A member extending portion,
The sensor receiving member extending portion extends from the receiving portion main body toward the outer peripheral side so as to protrude from the line connecting adjacent installation surface abutting portions to at least the outer peripheral sides on both the left and right sides, and the step platform. A weight scale, which is arranged at least in the vicinity of the front and rear center. The step has a curved outer periphery at least on both the left and right sides,
The leg portion includes a first leg portion disposed on the lower side of the left rear portion of the platform, a second leg portion disposed on the lower side of the right rear portion, and a first leg portion disposed on the lower side of the left front portion. 3 leg portions and a fourth leg portion disposed on the lower side of the right front portion, and the sensor receiving member extending portion in the tilt suppressing portion includes the first leg portion and the third leg portion. Extending from at least one of the second leg and any one of the second leg and the fourth leg to at least the vicinity of the front and rear center of the step platform. The weight scale according to claim 1. The inclination suppressing part further includes a cylinder extending part extended from the cylinder to substantially the same shape as the sensor receiving member extending part,
The cylindrical body extending portion includes an inclination preventing member for a sensor receiving member configured to contact the sensor receiving member and prevent the sensor receiving member from further tilting when the sensor receiving member is inclined. The weight scale according to claim 1, wherein the weight scale is provided.

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