JP4042756B2 - Body fat scale - Google Patents

Description

  The present invention relates to a body fat scale suitable for a plurality of persons to measure the body fat percentage of each person in a general household.

  With the recent increase in health consciousness, not only daily body weight measurement using a weight scale but also body fat percentage is often measured in general households. A body fat scale widely used in the home is a handy type in which a person to be measured holds a grip part with his / her left and right hands (for example, refer to Patent Document 1), and is placed on the floor and used. The stand type ones (see, for example, Patent Documents 2 and 3) are the mainstream. These body fat scales are convenient because they are equipped with a form and mechanism suitable for each use condition, but they are kept out of use when not in use, of course. Often gets in the way.

  Therefore, in order to solve such problems, a wall-mounted body fat scale that is used by being attached to a wall surface in a room has been proposed (for example, see Patent Document 4). This body fat scale calculates body fat percentage by pressing left and right hands against two electrodes provided on a body fat scale body attached to a wall surface and measuring the impedance between both hands.

JP 2001-149328 A JP 2003-88507 A JP 2003-265429 A JP 2000-116613 A

  In the case of a body fat scale that calculates the body fat percentage based on the impedance between the human hands, in order to measure accurately, both arms are straightened without bending the elbows, and the left and right palms are used as electrodes. Must be in close contact. However, in the body fat scale described in Patent Document 4, since the electrodes are provided in parallel with the wall surface, the left and right palms are folded in a direction parallel to the wall surface with respect to the arm extended forward, The palm of the hand must be in contact with the electrode.

  For this reason, if you are tall enough that the height of the arm that extends forward is lower than the height of the electrode of the body fat scale, you can measure in a relatively easy posture, but the height is too high or low. If the height of the arm and the height of the electrode differ greatly, the measurement subject may be forced to take a tight measurement posture or be unable to measure. Further, when body fat percentage measurement is performed in a cramped posture, there is a possibility that the measurement accuracy may deteriorate without maintaining the correct measurement posture.

  The problem to be solved by the present invention is a body that can relatively easily cope with the height difference of a plurality of measurement subjects and can perform accurate measurement without forcing the measurement subject to an unreasonable posture. To provide a fat scale.

The body fat scale of the present invention includes a main body substrate attached to a wall surface, two arm portions held so as to be rotatable with respect to the main body substrate, and two arm portions in a lying state. Rotate the two arm parts upward to measure the impedance of the human body by placing the support shaft horizontally arranged so as to be turned upright and the left and right palms of the person being measured. Electrodes provided on the upper surface of the arm portion when the arm portion is in a standing state, and the impedance of the human body can be measured regardless of whether the arm portion is in a lying state, an inclined state, or a standing state. , characterized in that a locking mechanism for holding the arm part in the upright state. With such a configuration, the arm portion is set at an angle suitable for the user between the standing posture and the lying posture, and the user touches the arm portion to the extent that a part of the palm touches the electrode. Since the body fat percentage can be measured in the posture, the measurement accuracy can be improved. In particular, since the arm portion can be rotated with respect to the main body substrate, it is possible to select the posture of the arm portion according to the height of the person being measured, so the body fat percentage can be measured with the correct posture. It is possible to improve the measurement accuracy.

  Here, it is desirable to attach the arm part to the main body substrate via a lock stay having a lock mechanism capable of holding the arm part in an upright state. With such a configuration, it becomes possible to hold the arm part in two postures, a lying posture and a standing posture, and a tall person measures while holding the arm part upright, and a short person The arm portion can be measured while being held in a lying state. For this reason, it can measure with an easy posture with little physical burden corresponding to each person's height difference.

  In addition, the lock stay may be provided with a buffering means for preventing the arm portion from rotating to a lying posture by its own weight when the locked state of the lock mechanism is released. With such a configuration, the arm part in the standing state rotates by its own weight after unlocking and returns to the lying down state, and the arm part and the peripheral member collide when returning to the lying down state. It can be avoided. For this reason, generation | occurrence | production of a noise and damage to a member can be prevented and safety | security improves.

  On the other hand, if a protrusion is provided in the vicinity of the electrode provided on the arm part to define the contact position of the hand of the person to be measured, the hand of the person to be measured is always placed at a fixed position. Therefore, the measurement accuracy can be further improved.

  Further, the main body board includes an input unit for inputting physical information of the measurement subject, a storage unit for storing the input physical information, impedance measured by the electrodes, and a measurement target stored in the storage unit. It is desirable to include a calculation unit that calculates the body fat percentage based on the body information and a display unit that displays the body fat percentage calculated by the calculation unit. With such a configuration, it is possible to input data necessary for calculating the body fat percentage of the measurement subject on the spot, so that usage is easy and convenience is improved.

  According to the present invention, a plurality of persons having different heights can accurately measure the body fat percentage with an easy posture.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a front view showing a body fat scale according to an embodiment of the present invention, FIG. 2 is a right side view of the body fat scale shown in FIG. 1, FIG. 3 is a bottom view of the body fat scale shown in FIG. Is a rear view of the body fat scale shown in FIG. 1, FIG. 5 (a) is a right side view showing the undulation state of the arm in the body fat scale shown in FIG. 1, and FIG. 5 (b) is a view of the body fat scale shown in FIG. It is a partially omitted right side view showing the undulation state of the display unit. FIG. 6 is a block diagram showing a schematic configuration of the body fat scale shown in FIG. 1, and FIG. 7 is an explanatory diagram showing an initial setting procedure of the body fat scale shown in FIG.

  As shown in FIGS. 1 to 5, the body fat scale 1 of the present embodiment is used by attaching a mounting plate 2 on the back side of the body fat scale 1 to a wall surface 3 such as a toilet (not shown) in a vertical state. It is. The body fat scale 1 includes a main body substrate 4 attached to the wall surface 3 and two left and right arm portions 5a held so as to be rotatable in a direction to stand up and fall on the main body substrate 4 (see FIG. 5A). 5b and electrodes 6a and 6b provided on the arm portions 5a and 5b, respectively, for measuring the impedance of the human body of the measurement subject. The left and right arm portions 5a and 5b are attached so as to be rotatable around a support shaft 10 (see FIG. 4) arranged in the horizontal direction.

  An input unit 7 for inputting the body information of the person to be measured is provided above the front surface of the main body substrate 4, and a display unit 8 for displaying measurement results such as body fat percentage is disposed below the input unit 7. . The display unit 8 can be rotated in a direction to stand and fall on the main body substrate 4 via a hinge unit 9 having a horizontal support shaft (not shown) parallel to the wall surface 3 (see FIG. 5B). ). Further, nose-shaped protrusions 11 for defining the contact position of the hand of the person to be measured are provided above the electrodes 6a and 6b (portions near the support shaft 10) provided on the left and right arm portions 5a and 5b. Is provided.

  As shown in FIG. 1, the input unit 7 includes a power switch 7a for turning on / off the power, a plurality of selection buttons 7b for selecting a registrant, and a plurality of modes for selecting a measurement mode. A switch button 7c, a record button 7d for recording the measurement result, a personal button 7e for switching to the data setting mode of the person to be measured, a time button 7f for switching to the time setting mode, and a set numerical value are increased or decreased. Numerical value switching buttons 7h and 7i for updating, and an update button 7g for updating the setting data to numerical values increased or decreased are arranged.

  As shown in FIG. 1, the display unit 8 is provided with an output display unit 8X that displays measurement results and an input display unit 8Y that displays setting data. The output display unit 8X is provided with a liquid crystal panel 8a that displays a urine sugar value, a blood pressure value, and a pulse, and a liquid crystal panel 8b that displays a body weight value, a body fat percentage, and an obesity level. The input display unit 8Y is provided with a liquid crystal panel 8c that displays height, age, and sex.

  On the other hand, as shown in FIG. 4, a cover 12 protruding to the back side is attached to the central portion of the back surface of the body substrate 4 of the body fat scale 1 by a plurality of screws 14, and signals are transmitted to other devices. A plurality of cabtire cables 18 for transmitting and receiving are extended downward from the lower center of the cover 12. These cabtyre cables 18 are locked to the cover 12 by pressing plates 19 and screws 20. On the left and right sides of the cover 12, flag-shaped connecting plates 13 a and 13 b fixed to fixed hinge members 16 a and 16 b constituting the lock stays 15 a and 15 b of the arm portions 5 a and 5 b are attached by a plurality of screws 17. Yes. These connecting plates 13a and 13b are formed of a highly rigid metal plate.

  As shown in FIG. 1, an input unit 7 for inputting body information of a person to be measured and a display unit 8 for displaying measurement results are provided on the front side of the main body substrate 4. As shown in FIG. 6, a storage unit 21 that stores body information of the measurement subject input from the input unit 7, an impedance measured by the electrodes 6 a and 6 b, and a scale (not shown) A calculation unit 22 is provided that calculates a body fat percentage based on the measured body weight value and the body information of the measurement subject stored in the storage unit 21. A numerical value indicating the body fat percentage calculated by the calculation unit 22 is displayed on the liquid crystal panel 8 b of the display unit 8.

  Here, the initial setting procedure of the body fat scale 1 will be described with reference to FIG. First, as shown in FIG. 7 (a), after pressing the power switch 7a in the input unit 7 to start the body fat scale 1, the personal button 7e of the input unit 7 is pressed to start data input of the subject. To do. After pressing the personal button 7e, when any of the selection buttons 7b (A to D, guest) is pressed, the height display portion 8d in the liquid crystal panel 8c of the input display portion 8Y displays the numerical value “160” and blinks. Since it starts, it pushes either numerical value switch button 7h, 7i, and unites with the height value of a to-be-measured person. After the same numerical value as the height value of the person to be measured is displayed, when the individual button 7e of the display unit 8 is pressed, the height is determined.

  When the height is confirmed, the age display unit 8e of the input display unit 8Y displays the numerical value “40” and starts to blink, so that either of the numerical value switching buttons 7h and 7i is pressed to match the age value of the subject. When the same numerical value as the age value of the person to be measured is displayed, the individual button 7e of the display unit 8 is pressed to confirm the age. Further, when the age is confirmed, the display of “male” or “female” in the gender display section immediately below the age display section 8e of the input display section 8Y is switched by pressing the numerical value switch buttons 7h, 7i to set the gender. Finally, the update button 7g is pushed to complete the setting. Thus, the initial setting is completed. However, when there are a plurality of persons to be measured, the initial setting operation is performed for each person to be measured according to the procedure described above.

  Next, the structure and function of the arm portions 5a and 5b will be described with reference to FIGS. 8 is an exploded perspective view of the arm portion constituting the body fat scale shown in FIG. 1, FIG. 9 is a vertical sectional view of the arm portion in the lying posture, and FIG. 10 is a vertical sectional view of the arm portion in the maximum angle standing posture. is there. Although FIGS. 8 to 10 show the arm portion 5a, the arm portion 5b has a mirror-symmetrical structure with the arm portion 5a and has the same function, so the description of the arm portion 5b is omitted. To do.

  As shown in FIG. 8, the arm portion 5a includes a fixed hinge member 16a fixed to the connecting plate 13a, protective covers 23a and 23b, a plate-like locking spring 28, and a movable hinge member 24 having a U-shaped cross section. The link member 25 having the upper support shaft 25a and the lower support shaft 25b, the support shaft 10, the E-ring 29 locked to both ends of the support shaft 10, and the movable hinge member 24 so as to cover it. A fixed U-shaped reinforcing member 26, electrodes 6a and 6b, signal cables 30a and 30b and connectors 31a and 31b extending from the electrodes 6a and 6b, a front case 32a, and a back case 33b; A hemispherical cushion 34 attached to the back side of the back case 33b.

  The protective covers 23 a and 23 b are attached to the left and right sides of the fixed hinge member 16 a, the locking spring 28 is fixed to the inside of the fixed hinge member 16 a with screws (not shown), and the movable hinge member 24 is interposed via the support shaft 10. The fixed hinge member 16a is rotatably attached. At this time, the support shaft 10 is attached so as to pass through the support hole 16c in the upper end portion of the fixed hinge member 16a and the support hole 24a in the upper end portion of the movable hinge member 24, and E-rings 29 are attached to both ends thereof. Is locked. The movable hinge member 24, the link member 25, and the reinforcing member 26 are formed of a highly rigid metal plate, the locking spring 28 is formed of an elastic metal plate, and the support shaft 10 is formed of a metal round bar.

  The link member 25 is disposed between the fixed hinge member 16a and the movable hinge member 24, and both end portions of the upper support shaft 25a are pivotally supported by the left and right support holes 24b of the movable hinge member 24, respectively. The both ends of the lower support shaft 25b are attached so as to be movable along the left and right guide slits 16g of the fixed hinge member 16a. As a result, the movable hinge member 24 pivotally supported by the fixed hinge member 16 a via the support shaft 10 and the link member 25 disposed between the fixed hinge member 16 a and the movable hinge member 24 are locked. A stay 15a is formed. A flat plate-like fixing portion 24 d having a plurality of screw holes 24 c is provided below the movable hinge member 24.

  Thereafter, as shown in FIG. 9, the front case 32 a in which the electrodes 6 a and 6 b are fitted from the back side is mounted so as to cover the entire lock stay 15 a from the front side of the reinforcing member 26, and from the back side of the reinforcing member 26. The front case 32a is fixed to the lock stay 15a by screwing the plurality of penetrated screws 36 into the screw holes 32d of the front case 32a. Then, after attaching the back case 33b to the fixed portion 24d of the movable hinge member 24 from the back side of the lock stay 15a, screws 35 (see FIG. 4) are respectively inserted into the plurality of screw holes 33c from the back side of the back case 33b. Thus, the arm portion 5a is formed by screwing into the screw hole 24c of the fixing portion 24d. As shown in FIGS. 4 and 8, a cylindrical shaft body 32c communicating with the inside is formed on the side surfaces of the front cases 32a and 32b. The shaft body 32c is a bearing portion 4b of the main body substrate 4. It is loosely inserted into the inside (see FIG. 5B). Further, the inside of the cylindrical shaft body 32c is a wiring path for wiring the signal cables 30a and 30b shown in FIG.

  With such a configuration, the movable hinge member 24 constituting the lock stay 15a can be rotated around the support shaft 10 with respect to the fixed hinge member 16a. Therefore, the range of the arm portion 5a attached to the reinforcing member 26 fixed to the movable hinge member 24 from the suspended state as shown in FIG. 9 to the state where it stands up to the maximum angle as shown in FIG. Inside, it becomes possible to rotate around the support shaft 10.

  Next, the structure and function of the lock stay will be described in detail with reference to FIGS. FIG. 11 is a left side view of the lock stay constituting the arm portion in the lying down state, FIG. 12 is a left side view when the lock stay shown in FIG. 11 is shifted to the spring-up state, and FIG. 13 is a view of the lock stay shown in FIG. FIG. 14 is a left side view when the lock stay shown in FIG. 13 is shifted to the locked state, and FIG. 15 is a view when the lock stay shown in FIG. 14 is shifted to the unlocked state. FIG. 16 is a left side view when the lock stay shown in FIG. 15 is shifted to a locked state during rotation. Although FIGS. 11 to 15 show the lock stay 15b, the lock stay 15a has a mirror-symmetrical structure with the lock stay 15b and has the same function, and therefore the description of the lock stay 15a is omitted. To do.

  FIG. 11 shows a state in which the movable hinge member 24 constituting the lock stay 15b is in a lying state, and this state is a first measurement posture described later. FIG. 11 shows the locking spring 28 and the guide member 37 that do not appear on the lock stay 15a shown in FIG. As shown in FIG. 8, the locking spring 28 is a substantially rectangular plate spring and is fixed to the inside of the fixed hinge member 16b. The guide member 37 is a substantially boomerang-shaped member formed of a metal plate, and one end portion of the guide member 37 is pivotally supported on the left side surface of the fixed hinge member 16b via a support shaft 38. Further, in order to define the rotation range of the guide member 37 within the range of the arrow 40, the locking hole 41 provided in the center portion thereof, and the side surface of the fixed hinge member 16b in a state of protruding into the locking hole 41 And a locking pin 39 fixed to the head. In the state shown in FIG. 11, the lower support shaft 25 b of the link member 25 presses the lower side of the locking spring 28 toward the back surface (direction of the connecting plate 13 b), and the lower support shaft is caused by the reaction of the locking spring 28. 25b is urged in the front direction.

  The guide member 37 is provided with two convex portions 37a and 37b and two bay portions 37c and 37d on the inner corner side, and the convex portion 37b and the bay portions 37c and 37d are guide slits of the fixed hinge member 16b. It arrange | positions so that it may face the substantially triangular wide part 16h in the upper end part of 16g. The guide member 37 is biased counterclockwise (a direction in which the convex portion 37a approaches the connecting plate 13b) about the support shaft 38 by a spring (not shown). 11 is maintained.

  Here, as shown in FIG. 12, when the movable hinge member 24 is pivoted upward about the support shaft 10 to stand up to 99 degrees from the original position, the link member 25 is centered on the upper support shaft 25a. The lower support shaft 25b separates from the locking spring 28, rises along the guide slit 16g of the fixed hinge member 16b, and enters the widened portion 16h. The lower support shaft 25b that has entered the widened portion 16h enters the bay portion 37d of the guide member 37, and then pushes up the convex portion 37b. Therefore, the guide member 37 rotates about the support shaft 38 in the direction of the arrow 42. To go. When the lower support shaft 25b is lifted and separated from the locking spring 28, the locking spring 28 is restored to its original shape, and the lower part thereof moves in the front direction.

  Thereafter, when the movable hinge member 24 is further rotated upward, the lower support shaft 25b of the link member 25 pushes up the convex portion 37b, so that the guide member 37 is further rotated around the support shaft 38 in the direction of the arrow 42. However, when the lower support shaft 25b gets over the top of the convex portion 37b, the guide member 37 is immediately rotated in the direction opposite to the arrow 42 by the urging force to return to the original state. That is, as shown in FIG. 13, when the movable hinge member 24 is rotated upward as much as possible, the lower support shaft 25b reaches the upper end corner portion 16i of the widened portion 16h of the guide slit 16g, and the guide member 37 is moved to the arrow 43. Rotating in the direction, the bay portion 37c comes into contact with the lower support shaft 25b. In the present embodiment, the maximum rotation angle of the movable hinge member 24 is set to 110 degrees from the original position, but the present invention is not limited to this.

  Thereafter, when the upward force applied to the movable hinge member 24 is released, the movable hinge member 24 rotates in the inclining direction about the support shaft 10, and at this time, the lower support shaft in the state shown in FIG. 25b descends along the upper edge of the convex portion 37b from the bay portion 37c of the guide member 37, and enters the rear end corner portion 16j of the widened portion 16h of the guide slit 16g, as shown in FIG. Locked. As a result, the link member 25 is constrained so as not to move between the fixed hinge member 16b and the movable hinge member 24. Therefore, the movable hinge member 24 is locked by the link member 25 in a state in which the link member 25 stands 90 degrees from the original position. Is done.

  Thereafter, as shown in FIG. 15, when the movable hinge member 24 is rotated upward, the link member 25 is also raised at the same time, so that the lower support shaft 25b is detached from the rear end corner portion 16j of the widened portion 16h. Immediately abut against the lower edge of the convex portion 37b of the guide member 37, and enters the bay portion 37d while being guided along it, and is positioned in the upper portion of the guide slit 16g. In the present embodiment, the standing angle of the movable hinge member 24 at this time is set to 100 degrees from the original position, but the present invention is not limited to this.

  In the state shown in FIG. 15, the lower support shaft 25b of the link member 25 can be lowered as it is along the guide slit 16g. Therefore, if the force supporting the movable hinge member 24 is loosened, the movable hinge member 24 will fall by its own weight. Rotate in the direction. Along with this, the lower support shaft 25b of the link member 25 descends along the guide slit 16g, but below that, the lower portion of the locking spring 28 that has returned to its original shape is located. For this reason, as shown in FIG. 16, when the lower support shaft 25b comes into contact with the lower portion of the locking spring 28, the lowering is prevented and the link member 25 is restrained at that position. Thereby, since the rotation of the movable hinge member 24 is stopped and held in that state, it is possible to prevent the movable hinge member 24 from rotating at once to its fallen state due to its own weight. In the present embodiment, the standing angle from the original position of the movable hinge member 24 at this time is set to 45 degrees, but the present invention is not limited to this.

  Thereafter, if a downward force is applied to the movable hinge member 24 to rotate in the lying down direction, the lower support shaft 25b of the link member 25 overcomes the urging force of the locking spring 28, and the locking spring 28 is moved back. Since it descends along the guide slit 16g while being elastically deformed so as to push it in the direction (direction of the connecting plate 13b), the movable hinge member 24 can be returned to the original lying state shown in FIG. Thereafter, if the movable hinge member 24 is rotated again in the standing direction, the above-described states shown in FIGS. 12 to 16 can be repeated. In the state shown in FIG. 11, the lower support shaft 25b is kept lightly constrained by the locking spring 28 urging the lower support shaft 25b toward the front side. For this reason, it is possible to prevent the movable hinge member 24 from freely swinging due to vibration or contact.

  Next, a method for attaching the body fat scale 1 shown in FIG. 1 to the wall surface will be described with reference to FIGS. 1 to 5 and FIGS. 17 and 18. FIG. 17 is a perspective view showing a procedure for attaching the body fat scale shown in FIG. As shown in FIG. 17, the body fat scale 1 is used by being fixed to a wall surface of a toilet (not shown) or the like with an attachment plate 2 interposed on the back side thereof. The mounting plate 2 is formed by bending the outer peripheral portion of a rectangular metal plate material into a curved shape on the back side (wall surface side) and providing a rectangular opening 2a in the upper portion thereof. A plate material is recessed on the back side (wall surface side) at a portion near the four corners of the mounting plate 2 and a central portion, and a through hole 2b for screw insertion is provided there. A plurality of through-holes 2d are provided on the left and right sides of the opening 2a to allow screws 44 described later to pass therethrough.

  As shown in FIG. 17 (a), the mounting plate 2 is arranged on the wall surface (not shown) that is the place where the body fat scale 1 is installed, and screws 47 are respectively inserted into the plurality of through holes 2b from the front side thereof. When screwed to the wall surface 3, the mounting plate 2 is fixed to the wall surface 3. Thereafter, the back surface of the body fat scale 1 is directed to the mounting plate 2, and the cabtyre cable 18 is wired downward through the opening 2a of the mounting plate 2. As shown in FIGS. The portion 4a is fitted into the opening 2a and hooked on the hook 2c. At this time, the cabtyre cable 18 is wired in a wiring region 2z (see FIG. 20) formed between the back surface of the mounting plate 2 and the wall surface 3.

  Thereafter, as shown in FIG. 17 (b), the left and right arm portions 5a and 5b are rotated upward to stand 90 degrees. At this time, the lock stays 15a and 15b in the arm portions 5a and 5b are operated as shown in FIGS. 11 to 14, so that the arm portions 5a and 5b are kept in a standing state by 90 degrees. When the arm portions 5a and 5b are raised by 90 degrees, the front portions of the connecting plates 13a and 13b appear, so that the plurality of through-holes 13c (see FIG. 4) opened there are screws 44 from the front side. Is inserted into the wall surface 3 through the through hole 2d of the mounting plate 2 as it is. That is, since the through hole 2d of the mounting plate 2 and the through hole 13c of the connecting plates 13a and 13b are opened so as to overlap on the same axis when the body fat scale 1 is mounted on the mounting plate 2, the screw 44 Is inserted into the through hole 13c, the through hole 2d can be directly communicated and screwed to the wall surface 3. When the screw 44 is completely screwed into all the through holes 13c, the attachment of the body fat scale 1 is completed. A hand washing machine 45 having a water tap 45a is attached to a lower region of the attachment plate 2 to which the body fat scale 1 is attached.

  As described above, the arm portions 5a and 5b including the electrodes 6a and 6b are directly attached to the wall surface 3 with the screws 44, so that the mounting strength is maintained even when the subject applies a load to the arm portions 5a and 5b for impedance measurement. Can be kept as much as possible.

  Next, how to use the body fat scale 1 will be described with reference to FIGS. 1 and 18 to 22. 18 is a perspective view showing a state in which the body fat scale shown in FIG. 1 is attached to a wall surface, FIG. 19 is a partially cutaway left side view of the body fat scale shown in FIG. 18, and FIG. 20 is a body fat scale shown in FIG. FIG. 21 is a partially cutaway left side view of the body fat scale shown in FIG. 19, and FIG. 22 shows the arm part of the body fat scale shown in FIG. It is a partially cutaway left side view when locked.

  The body fat scale 1 in the standby state is in the state shown in FIG. 1, FIG. 18 and FIG. The subject to be measured presses the power switch 7a to start up, and then presses the selection button 7b corresponding to the user among the plurality of selection buttons 7b. Then, as shown in FIGS. 20 and 21, the left and right arm portions 5 a and 5 b are placed in a horizontal posture. In this case, the arm portions 5a and 5b in the lying state shown in FIG. 18 are gripped by hand, and after rotating from that state to a position of 110 degrees, the arm portions 5a and 5b are automatically It becomes a horizontal posture. In this process, the lock stays 15a and 15b built in the arm portions 5a and 5b operate as shown in FIGS. 11 to 14, and the fixed hinge members 16a and 16b and a movable hinge member (not shown) are operated. By engaging the link member 25 in between, the arm portions 5a and 5b are locked and kept in a horizontal posture. This locked state is the first measurement posture.

  Then, as shown in FIG. 20, the display unit 8 is rotated upward, and the measurement subject is set at an inclination angle at which the liquid crystal panels 8a, 8b, and 8c are easy to see. As shown in FIG. 5 (b), the display unit 8 can be set at an arbitrary inclination angle within the range from the lying state to the horizontal standing state. State.

  When the setting of the arm portions 5a and 5b and the display portion 8 is completed, the person to be measured places the left and right palms on the upper surface of the arm portions 5a and 5b in a horizontal state. At this time, the projections 11 on the upper surfaces of the arm portions 5a and 5b are sandwiched between the index and middle fingers of the left and right hands, and the palms of both hands are brought into close contact with the electrodes 6a and 6b. Thereafter, the impedance of the human body of the person to be measured is automatically measured, and the body fat rate and the degree of obesity calculated by the calculation unit 22 (see FIG. 6) based on the impedance are displayed on the liquid crystal panel 8b of the display unit 8. Is done.

  When the measurement of the body fat percentage is finished, when the arm portions 5a and 5b are rotated upward from the horizontal posture, the lower support of the link member 25 is reached at the position reaching 100 degrees from the lying posture as shown in FIG. The shaft 25b moves away from the rear end corner portion 16j of the widened portion 16h of the guide slit 16g and moves above the guide slit 16g. Accordingly, in this state, if the force supporting the arm portions 5a and 5b is loosened or the hands are released, the arm portions 5a and 5b rotate in the falling direction due to their own weights. However, as shown in FIG. Since the lower support shaft 25b of the 25 comes into contact with the locking spring 28, the rotation of the arm portions 5a and 5b stops at that position and is held in that state. Therefore, after that, if a force is applied to the arm portions 5a and 5b to rotate in the lying direction, the lower support shaft 25b descends along the guide slit 16g while pushing the locking spring 28 toward the back side, The arm portions 5a and 5b return to the lying down state shown in FIGS. Thereafter, when the power switch 7a is pressed, the power is turned off, and the body fat scale 1 enters a standby state.

  On the other hand, as shown in FIGS. 18 and 19, the body fat scale 1 can measure the body fat percentage even when the arm portions 5a and 5b are in a lying state. That is, after the power switch 7a is pressed and the power is turned on, the left and right sides of the subject are measured in the same manner as when the protruding portions 11 of the arm portions 5a and 5b and the electrodes 6a and 6b in the lying state are horizontally raised. When the palm of the hand is brought into close contact, the impedance of the human body is automatically measured, and the body fat percentage calculated by the calculation unit 22 (see FIG. 6) is displayed on the liquid crystal panel 8b. Thus, since the body fat percentage can be measured even when the arms 5a and 5b are lying down, even a measurement subject with a short height can perform an accurate measurement with a comfortable posture.

  As described above, the body fat scale 1 of the present embodiment includes the main body substrate 4 attached to the wall surface 3 and the two arm portions 5a that are rotatably held in a direction to stand up and fall on the main body substrate 4. , 5b, and electrodes 6a, 6b provided on the arm portions 5a, 5b, respectively, for measuring the impedance of the human body. Therefore, the person to be measured simply sets the arm portions 5a, 5b to either the standing posture or the lying posture, and presses the left and right palms against the electrodes 6a, 6b so as to be in close contact with the electrodes 5a, 5b. Fat percentage can be measured. For this reason, the body fat percentage can be measured in the correct posture, and the measurement accuracy can be improved.

  Moreover, in order to hold | maintain arm part 5a, 5b in an upright state, the locking mechanism which consists of fixed hinge members 16a, 16b, the movable hinge member 24, and the link member 25 is provided in the lock stays 15a, 15b, respectively. Therefore, the arm portions 5a and 5b can be stably held in the two postures of the lying posture and the standing posture, and a person with a high height is measured by holding the arm portions 5a and 5b in a standing state, and a person with a short height. Can be measured by holding the arm portions 5a, 5b in a lying state. For this reason, it can measure with an easy posture with little physical burden corresponding to each person's height difference.

  The impedance can be measured even when the arm portions 5a and 5b are inclined obliquely. In that case, the arms 5a and 5b that are not set in either the standing posture or the lying posture may be grasped by the hand of the person to be measured and the palms of both hands may be brought into contact with the electrodes 6a and 6b.

  Furthermore, as shown in FIGS. 16 and 22, the lock stays 15 a and 15 b serve as buffer means for preventing the arm portions 5 a and 5 b from rotating to the lying posture due to their own weight when the lock mechanism is released from the locked state. A locking spring 28 is provided in the ascending / descending region of the lower support shaft 25b of the link member 25 constituting the. Therefore, the arm portions 5a and 5b in the standing state return to the fallen state at a stretch by their own weight after unlocking, and the constituent members of the arm portions 5a and 5b collide with the peripheral members when returning to the fallen state. It can be avoided. For this reason, generation | occurrence | production of a noise and damage to a member can be prevented and safety | security improves. Also, as shown in FIGS. 4, 9, and 10, since the rear case 33b of the arm portions 5a and 5b is provided with a hemispherical cushion 34, when the arm portions 5a and 5b return to the lying state, First, the cushion 34 can come into contact with the mounting plate 2 to reduce the impact.

  On the other hand, since a projection 11 is provided in the vicinity of the electrodes 6a and 6b provided on the arms 5a and 5b to define the contact position of the hand of the person being measured, The measurer's hand is always placed at a fixed position, and the measurement accuracy can be further improved.

  Further, as shown in FIGS. 1 and 6, the main body substrate 4 includes an input unit 7 for inputting body information of the person to be measured, a storage unit 21 for storing the input body information, and electrodes 6 a and 6 b. The calculation unit 22 calculates the body fat percentage based on the measured impedance and the weight value measured by a weight scale (not shown) and the physical information of the measurement subject stored in the storage unit 21, and is calculated by the calculation unit 22. And a display unit 8 for displaying the body fat percentage. For this reason, it is possible to input the data necessary for calculating the body fat percentage of the measurement subject on the spot, the usage is easy, and the convenience is excellent.

  When the impedance is measured before the body weight, the body fat percentage is calculated and displayed based on the previously measured weight data recorded in the storage unit 21. After that, when the weight is remeasured, the body fat percentage is calculated and displayed based on the new weight data. Of course, if you are taking care of your body fat meter measurement data and other health measuring instrument data into a personal computer via a home LAN line, you will only receive body fat percentage data based on new weight data. Can be imported to your computer.

  Furthermore, to accurately calculate the body fat percentage, accuracy is also required for the weight of the basis, but in a toilet or a washroom in which the body fat scale of the present invention is installed, the weight is measured while wearing clothes. I can't gain weight. Therefore, by pressing the numerical value switching buttons 7h and 7i while the weight is displayed on the liquid crystal panel 8b of the display unit 8, the weight can be increased or decreased by 0.2 kg, and the clothing can be decreased to obtain the weight.

  The body fat scale of the present invention can be widely used by being installed on a wall surface of a toilet, a washroom, a dressing room, etc. of a general house.

It is a front view which shows the body fat scale which is embodiment of this invention. It is a right view of the body fat scale shown in FIG. It is a bottom view of the body fat scale shown in FIG. It is a rear view of the body fat scale shown in FIG. (A) is a right side view showing the undulation state of the arm in the body fat scale shown in FIG. 1, and (b) is a partially omitted right side view showing the undulation state of the display part in the body fat scale shown in FIG. is there. It is a figure which shows schematic structure of the main body board | substrate which comprises the body fat scale shown in FIG. It is explanatory drawing which shows the initial setting procedure of the body fat scale shown in FIG. It is a disassembled perspective view of the arm part which comprises the body fat scale shown in FIG. It is a vertical sectional view of an arm part in a lying posture. It is a vertical sectional view of the arm portion in the maximum angle standing posture. It is a left view when the lock stay which comprises an arm part exists in a lying state. FIG. 12 is a left side view when the lock stay shown in FIG. 11 is shifted to a spring-up state. It is a left view when the lock stay shown in FIG. 12 transfers to the maximum rotation state. FIG. 14 is a left side view when the lock stay shown in FIG. 13 is shifted to a locked state. It is a left view when the lock stay shown in FIG. 14 transfers to the lock release state. FIG. 16 is a left side view when the lock stay shown in FIG. It is a perspective view which shows the attachment procedure of the body fat scale shown in FIG. It is a perspective view which shows the state in which the body fat scale shown in FIG. 1 was attached to the wall surface. It is a partially cutaway left view of the body fat scale shown in FIG. It is a partially-omission perspective view when the arm part of the body fat scale shown in FIG. 18 is raised. FIG. 20 is a partially cutaway left side view of the body fat scale shown in FIG. 19. It is a partially cutaway left side view when the arm part of the body fat scale shown in FIG. 21 is locked in the middle of lying down.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body fat scale 2 Mounting plate 2a Opening part 2b Through-hole 2c Hook 2d Through-hole 2z Area for wiring 3 Wall surface 4 Main body board 4a Back surface part 4b Bearing part 5a, 5b Arm part 6a, 6b Electrode 7 Input part 7a Power switch 7b selection Button 7c Mode switch button 7d Record button 7e Personal button 7f Time button 7g Update button 7h, 7i Numerical value switch button 8 Display unit 8a, 8b, 8c Liquid crystal panel 8d Height display unit 8e Age display unit 8X Output display unit 8Y Input display unit 9 Hinge part 10 Support shaft 11 Protrusion part 12 Cover 13a, 13b Connecting plate 13c Through hole 13g Guide slit 14, 17, 20, 35, 36, 44, 47 Screw 15a, 15b Lock stay 16a, 16b Fixed hinge member 16c, 24a, 24b Support hole 16g Guide slit 1 h Widening part 16i Upper end corner part 16j Rear end corner part 18 Cab tire cable 19 Holding plate 21 Storage part 22 Calculation part 23a, 23b Protective cover 24 Movable hinge member 24c, 32d, 33c Screw hole 24d Fixed part 25 Link member 25a Upper support Shaft 25b Lower support shaft 26 Reinforcing member 28 Locking spring 29 E-ring 30a, 30b Signal cable 31a, 31b Connector 32a, 32b Front case 32c Shaft body 33b Rear case 34 Cushion 37 Guide member 37a, 37b Protruding portion 37c, 37d Bay portion 38 Support shaft 39 Locking pin 41 Locking hole 45 Washing machine 45a Water faucet

Claims (5)

The main body substrate attached to the wall surface, the two arm portions held so as to be rotatable in the direction of standing and falling with respect to the main body substrate, and the two arm portions in the lying state are rotated upward to stand up. When the two arm parts are turned upright and placed in an upright position in order to measure the impedance of the human body by placing a horizontal support shaft and left and right palms of the person to be measured. An electrode provided on each of the upper surface portions of
Whether the arm portion is in a lying state, an inclined state or a standing state, the impedance of the human body can be measured,
A body fat scale comprising a lock mechanism for holding the arm portion in an upright state.   The body fat scale according to claim 1, wherein the arm part is attached to the substrate body via a lock stay having a lock mechanism capable of holding the arm part in an upright state.   3. The body fat scale according to claim 2, wherein the lock stay is provided with a buffer means for preventing the arm portion from rotating to a lying posture under its own weight when the lock mechanism is unlocked.   The body fat scale according to any one of claims 1 to 3, wherein a protrusion for defining the contact position of the hand of the person to be measured is provided in the vicinity of the electrode provided on the arm part. .   The substrate body includes an input unit for inputting physical information of the measurement subject, a storage unit for storing the input physical information, an impedance measured by the electrodes, and the measured subject's body stored in the storage unit 5. The calculation unit according to claim 1, further comprising: a calculation unit that calculates a body fat percentage based on information; and a display unit that displays the body fat percentage calculated by the calculation unit. Body fat scale.

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