JP4407208B2 - Body composition meter - Google Patents

Description

  The present invention relates to a body composition meter that measures a composition of a body fat mass / rate, a lean mass / rate, a visceral fat area, a muscle mass, a water content, and the like.

  The body composition meter has a pair of electrodes in contact with a suitable place on the living body (eg, right hand-left hand, right foot-left foot, hand-foot, etc.), and a current is passed between both electrodes to detect the voltage and detect the bioimpedance In addition to measuring the weight of the person to be measured with a scale, the body weight and rate are measured based on the measured weight and impedance along with the age and sex set in advance. .

  As such a body composition meter, for example, a human body placing part and a hand operating part are electrically connected with a cable, and a recessed part for storing a cable provided in the human body placing part is provided. There is a living body information measuring device in which the hand operating part is also used as a lid for a recess to shield a cable housed inside (see, for example, Patent Document 1).

  In this apparatus, as one embodiment, the cable connecting the human body placing portion and the hand operating portion is a curled cord that is formed in a spiral shape and has flexibility in expansion and contraction, and the curled cord is contracted to shorten the overall length. And stored in the recess.

  In addition, the human body mounting part and the grip part are electrically connected with a cable, and the cable is wound up and stored by the winding means, so that the appearance when not in use is improved because the cable is not visible. There is an apparatus (for example, refer to Patent Document 2).

In this apparatus, when winding the cable, the cable is lightly pulled so that the winding means performs a winding operation, and the cable is stored in the winding means. In addition, when the cable is not tensioned, the automatic winding means that automatically winds the cable loosens the gripping force or releases the gripping part so that the automatic winding means It is designed to wind up.
JP 2002-263077 A ([0072], FIG. 30) JP 2002-325741 A ([0021], [0027], [0030] to [0034], FIG. 1, FIG. 3, FIG. 4, FIG. 5)

  According to the device described in Patent Document 1, the human body placing portion and the hand operating portion are connected by the curl cord. However, the curl cord needs to be folded and stored in an orderly manner so as not to protrude into the concave portion of the human body placing portion. It is troublesome to store the curl cord in the recess.

  Further, in the device described in Patent Document 2, the cable connecting the human body placing part and the gripping part is wound by the winding means or the automatic winding means. Care must be taken that the cable is not twisted or entangled when taken (when entering the human body rest). Otherwise, it may not be able to wind up to the end, or winding may stop halfway. Furthermore, when a non-stretchable cable is used, a winding means will become large and a human body mounting part will enlarge. In this case, it is possible to reduce the winding means using a flat cable, but the flat cable is expensive and has a problem with durability.

  The present invention has been made paying attention to the problems found in such a conventional apparatus, and can be used to store cables neatly and neatly, and it does not take time to store cables. The purpose is to provide.

In order to achieve the above object, a body composition meter of the present invention includes a body weight measuring unit having a foot electrode for bioimpedance measurement, a composition meter body having a hand electrode for bioimpedance measurement, and a body weight measuring unit. A cable for electrically connecting the composition meter main body, and a weight measuring unit including at least a part of the composition meter main body and a storage unit for storing the cable. The cable is a curl cord, and the storage unit is for weight measurement. substantially central portion is provided on the front side of the interior parts, provided with a doorway for guiding and out the curl cord in and out of this housing part, housing the curl cord winding toggle for accommodating winding of the curl cord Te within the weight measuring unit parts provided on the rear side than in the state in which housing the composition monitor main body to the housing portion, a portion of the curl cord is taken up into a curl cord winding toggle, the remaining portion is housed in the housing portion Characterized in that located on the back side of the composition monitor main body with.

In this body composition meter, a cable is used as a curl cord, and a curl cord winder for winding and storing the curl cord is provided. When the composition meter body is taken out of the body weight measurement unit and lifted to use the body composition meter, the curl cord is pulled out from the winder and extends. Since the curl cord has a tensile force, as the position of the composition meter body is lowered, the curl cord is wound around the winder, and if the composition meter body is returned to the original position of the weight measuring unit, The curl cord also returns to its original winding state. At this time, a part of the curl cord is wound around the curl cord winder and the remaining part is stored in the storage unit .

  In this body composition meter, it is preferable that the curl cord winder is disposed at a substantially central portion inside the body weight measuring unit.

  More specifically, the curl cord winder includes a casing having an inlet / outlet through which the curl cord is led in and out, and a curl cord that is rotatably supported in the casing and to which one end of the curl cord is attached. And a biasing member that has one end locked to the casing and the other end locked to the reel, and biases the reel in the direction of winding the curl cord.

  With this curl cord winder, when the composition meter body is taken out of the weight measuring unit and lifted to use the body composition meter, the curl cord is removed from the reel according to the lifted position against the tension from the biasing member. Pulled out and stretched. Since the curl cord is applied with a tensile force from the biasing member via the reel, as the position of the composition meter body is lowered, the curl cord is wound around the reel, and the composition meter body is attached to the weight measuring unit. If it returns to the original position, the curl cord also returns to the original winding state.

  The curl winder preferably includes a stopper that limits the rotation of the reel within one rotation. That is, it is preferable that the curl cord is wound around the reel within one time. More preferably, the rotation of the reel is up to about 270 °.

  Also, with this curl cord winder, when the curl cord is pulled out, the reel rotates before the curl cord is extended, and when the curl cord is stored, the curl cord contracts before the reel is rotated. Thus, it is preferable to set the elastic constant of the curl cord and the rotational biasing force of the biasing member. This depends on the thickness of the curl cord, curl diameter, etc. However, when the curl cord is pulled out, the reel rotates first so that the curl cord of the required length can be quickly pulled out from the reel. This is because when the curl cord is retracted, the curl cord contracts first, so that the curl cord is quickly wound around the reel in the contracted state.

  Furthermore, it is preferable that the entrance / exit of the casing of the curl cord winder also serves as the entrance / exit of the weight measuring unit.

  In the present invention, the curled cord means a cord (or cable) that is formed in a spiral shape and has a degree of freedom in expansion and contraction.

  According to the first, second, and third aspects of the invention, the curl cord can be stored neatly and neatly, and the curl cord can be stored without trouble.

  According to the fourth aspect of the present invention, the curl cord overlaps with the reel and cannot be wound, so that the quality of the curl cord is not impaired.

  According to the fifth aspect of the present invention, the curl cord can be pulled out and stored quickly.

  According to invention of Claim 6, cost can be reduced by reduction of a number of parts.

  Hereinafter, the present invention will be described in more detail with reference to embodiments.

  A plan view of a body composition meter according to the embodiment is shown in FIG. 1, and a diagram showing a use state of the body composition meter is shown in FIG.

  This body composition meter 1 measures a composition such as a body fat mass / rate, a lean mass / rate, a visceral fat area, a muscle mass, a water content, etc., and a body weight having a foot electrode for bioimpedance measurement. A measuring unit 2, a handle-shaped composition meter body 3 having a hand electrode for measuring bioimpedance, and a curl cord 10 as a cable for electrically connecting the weight measuring unit 2 and the composition meter body 3 are provided. Yes. The composition meter main body 3 can be detachably accommodated in the accommodating portion 8 (see FIGS. 14 and 15) of the weight measuring portion 2.

  The body weight measuring unit 2 includes a strain sensor for body weight measurement inside, and includes left foot electrodes 4L and 5L and right foot electrodes 4R and 5R for bioimpedance measurement on the surface. The left foot electrode 4L and the right foot electrode 4R are electrodes for high-frequency current conduction, and are electrically connected to each other inside the housing. The left foot electrode 5L and the right foot electrode 5R are measurement electrodes and are also electrically connected to each other inside the housing.

  The composition meter main body 3 includes a left grip 11 and a right grip 12. The left grip 11 is provided with left-hand electrodes 13L, 14L, and the right grip 12 is provided with right-hand electrodes 13R, 14R. These electrodes 13L, 14L, 13R, 14R are connected to the weight measuring unit 2 via the curl cord 10. It is connected to the circuit part inside.

  As shown in FIG. 2, the body composition meter 1 has a subject M placing his left foot on the left foot electrodes 4 </ b> L and 5 </ b> L of the weight measuring unit 2, placing his right foot on the right foot electrodes 4 </ b> R and 5 </ b> R, The electrodes 13L and 14L are grasped with the left hand, the right hand electrodes 13R and 14R are grasped with the right hand, and the composition meter main body 3 is lifted to almost the height of the shoulder, and the arm is straightened and used.

  The body composition meter 1 is characterized in that a cable connecting the weight measuring unit 2 and the composition meter body 3 is a curl cord 10 and a curl cord winder for winding the curl cord 10 is provided. Next, the curl winder will be described with reference to FIGS. The curl cord winder includes a curl cord 10, a casing (cases 20, 50), a reel (reel members 30, 40), and a biasing member (a spiral spring, not shown).

  The casing is composed of cases 20 and 50. One case 20 has a form as shown in FIG. 3 (outside plan view) and FIG. 4 (inside plan view). The case 20 has an entrance / exit 21 having a shape as shown in the figure through which the curl cord 10 is led out and inserted, and three screw insertion holes 22 are attached to the outer periphery at equal angle (120 °) intervals. The screw insertion hole 22 is for attaching the case 50 and the case 50 together with screws. A boss 23 projects from the inner center of the case 20, and a tip end portion of a shaft 54 of the case 50 described later is fitted into the boss 23. A semicircular opening 24 is formed outside the boss 23, and a straight portion (non-curled portion) of one end of the curl cord 10 is led out from the opening 24 and connected to a circuit portion inside the weight measuring unit 2. Is done.

  Further, an annular wide concave portion 25 is formed in the inner portion of the case 20 near the outer periphery, and a projection 26 constituting a stopper that restricts the rotation of the reel described later within one rotation is provided in the concave portion 25. . Further, an annular narrow concave portion 27 is formed outside the concave portion 25, and the concave portion 27 is also provided with a projection 28 constituting the stopper corresponding to the projection 26.

  The reel is composed of reel members 30 and 40. One reel member 30 has a form as shown in FIG. 5 (a perspective view seen from the inside), FIG. 6 (a plan view on the outside), and FIG. 7 (a plan view on the inside). A circular hole 31 is formed at the center of the reel member 30, and the circular hole 31 receives a sleeve 41 of the reel member 40 described later. A semicircular opening 32 is similarly formed outside the circular hole 31 corresponding to the opening 24 of the case 20. Further, on the inner side of the reel member 30, three claw pieces 33 are projected on the same circle at equiangular (120 °) intervals, and a projection 34 is projected on the same circle.

  An annular wide concave portion 35 is formed on the outer peripheral portion of the reel member 30, and a projection 36 constituting the stopper is provided in the concave portion 35 corresponding to the projection 26 of the case 20. Further, an annular narrow concave portion 37 is formed outside the concave portion 35, and the concave portion 37 is also provided with a projection 38 that constitutes the stopper corresponding to the projection 36. Here, the protrusions 36 and 38 of the reel member 30 and the protrusions 26 and 28 of the case 20 constitute a stopper that limits the rotation of the reel to within one rotation.

  The other reel member 40 is configured as shown in FIG. 8 (perspective view seen from the inside), FIG. 9 (inside plan view) and FIG. 10 (side view (a), outside plan view (b)). is there. A sleeve 41 projects inwardly at the center of the reel member 40, and a shaft 54 of a case 50 described later is inserted into the sleeve 41. Inside the reel member 40, an annular partition wall 42 is provided outside the sleeve 41, and an arcuate partition piece 43 is provided outside the partition wall 42. In the vicinity of the partition piece 43, a boss 44 that receives the protrusion 34 of the reel member 30 protrudes from one end of the partition wall 42. A pin 45 projects from the inside of the partition wall 42.

  The partition wall 42 is for winding the curled portion of the curl cord 10, and the partition piece 43, the boss 44 and the pin 45 are for fixing the straight portion (non-curled portion) of the curled cord 10. It is. For example, the straight portion of the curl cord 10 passes between the partition wall 42 and the partition piece 43, turns around the boss 44 and enters the inside of the partition wall 42, and passes between the pin 45 and the partition wall 42, One end of the curl cord 10 is attached to the reel member 40 (ie, reel).

  An annular partition wall 46 is formed on the outer side of the reel member 40, and a spiral spring (not shown) is disposed on the inner side of the partition wall 46. In the vicinity of the inner peripheral surface of the partition wall 46, an engagement piece 47 is attached to which a hook provided at the outer end of the spiral spring is hooked. Further, on the outer side of the partition wall 46 (inside the partition wall 42), holes 48 into which the claw pieces 33 of the reel member 30 are fitted and engaged are formed at equiangular (120 °) intervals.

  The other case 50 is shown in FIG. 11 [outside plan view (a), sectional view (b) along line AA in FIG. 11A], FIG. 12 (inside plan view) and FIG. It is a form as shown to the side view seen from the arrow B of]. The case 50 has an entrance / exit 51 having a shape as shown in the figure through which the curl cord 10 is led in / out, and corresponds to the entrance / exit 21 of the case 20. That is, the entrances 21 and 51 are aligned by integrating the cases 20 and 50. Three screw mounting portions 52 each having a screw hole 52a are attached to the outer periphery of the case 50 at equal angular intervals (120 °), corresponding to the screw insertion holes 22 of the case 20. By passing a screw through the screw insertion hole 22 of the case 20 and screwing it into the screw hole 52a of the screw mounting portion 52, the cases 20 and 50 are fixed together and a casing is formed. Further, on the outer periphery of the case 50, three screw insertion holes 53 for attaching the winder to the inside of the body weight measuring unit 2 are provided at equiangular (120 °) intervals.

  A shaft 54 projects from the inner center of the case 50. The shaft 54 is formed with a notch 54a (FIG. 11B) that divides the shaft 54 into two, and this notch 54a is for hooking a hook provided at an inner end of the spiral spring. The outer region of the shaft 54 is a circular recess 55 over a certain range. The recess 55 is somewhat larger than the partition wall 46 of the reel member 40, and the partition wall 46 is positioned in the recess 55 when the winder is assembled. The concave portion 55 of the case 50 and the partition wall 46 of the reel member 40 form a spiral spring accommodating portion. One end of the spiral spring is locked to the engaging piece 47 of the reel member 40 and the other end is locked to the notch 54 a of the shaft 54 of the case 50 in a state where the spiral spring is disposed in the spring accommodating portion.

  Needless to say, the direction of attachment of the spiral spring is set so that the reel is rotationally biased in the direction of winding the curl cord 10. In addition, the spring constant of the spiral spring and the spring constant of the expansion and contraction of the curl cord 10 are such that when the curl cord 10 is pulled out, the reel rotates before the curl cord 10 extends, and when the curl cord 10 is stored, the reel The curl cord 10 is set to contract before the rotation. Thereby, as described above, the curl cord 10 can be quickly pulled out and stored.

  Next, the curl winder configured as described above is assembled as follows, for example. After the straight portion (non-curled portion) of the curl cord 10 is passed through the opening 32 of the reel member 30 (and the opening 24 of the case 20), the linear portion of the curl cord 10 is attached to the reel member 40 as described above, and then the reel The protrusion 34 of the member 30 is inserted into the boss 44 of the reel member 40, and the claw piece 33 of the reel member 30 is inserted into and engaged with the hole 48 of the reel member 40. Of course, at this time, the sleeve 41 of the reel member 40 is inserted into the circular hole 31 of the reel member 30. Thereby, the reel members 30 and 40 are integrated and a reel is formed.

  On the reel member 30 side, the boss 23 of the case 20 is inserted into the sleeve 41 of the reel member 40 positioned in the circular hole 31 of the reel member 30. On the other hand, on the reel member 40 side, the spiral spring is disposed in the spring accommodating portion as described above, and the shaft 54 of the case 50 is inserted into the sleeve 41 of the reel member 40. Thereby, the tip portion of the shaft 54 is fitted into the boss 23. Further, the screw insertion hole 22 of the case 20 and the screw mounting portion 52 of the case 50 are aligned and screwed together, whereby the cases 20 and 50 are integrated to form a casing. As a result, a curl winder having a reel rotatably supported inside the casing is obtained. The assembled curl winder passes a screw through the screw insertion hole 53 of the case 50, and a predetermined portion (center portion) inside the weight measuring unit 2, that is, the left foot electrodes 4L and 5L and the right foot electrodes 4R and 5R. Installed at a position between.

  In the body composition meter 1 incorporating the curl winder, the curl cord 10 is housed as shown in the schematic rear view of the state in which the back cover of the body weight measuring unit 2 is removed. 3 (not shown) in the storage portion 8], a part of the curl cord 10 is wound around the reel in a stretched state by a spiral spring in the winder 60, and the remaining portion is stored in the storage portion 8. It is stored.

  When the composition meter main body 3 is removed from the storage unit 8 of the weight measuring unit 2 and lifted, the curl cord 10 is pulled out from the reel and the curl cord 10 extends as shown in FIG. When the curl cord 10 is pulled out to a certain extent (when the reel rotates to about 270 °), the protrusions 36 and 38 of the reel member 30 hit the protrusions 26 and 28 of the case 20 and the rotation of the reel is restricted. On the contrary, when the curl cord 10 is stored, the protrusions 36 and 38 hit the protrusions 26 and 28, and the rotation of the reel is stopped. Of course, since the straight portion (non-curled portion) at one end of the curl cord 10 is led out from the opening 24 of the case 20 and the opening 32 of the reel member 30, the curl cord 10 is pulled out when the curl cord 10 is pulled out or stored. There is no fear of tangling.

  According to the curl cord winder, the curl cord 10 can be stored neatly and neatly, and the curl cord 10 can be stored without trouble. Moreover, since the curl cord 10 overlaps with the reel and is not wound, not only the quality of the curl cord 10 is not impaired, but also the curl cord 10 can be pulled out and stored quickly.

  Further, when the curl cord 10 is stored, the projections 36 and 38 come into contact with the projections 26 and 28 and a collision sound is produced. Therefore, it can be easily recognized that the curl cord 10 can be stored. Furthermore, since the entrances 21 and 51 of the casing (cases 20 and 50) also serve as the entrance and exit in the storage unit 8 of the weight measuring unit 2, the cost can be reduced by reducing the number of parts. In addition, since the entrances 21 and 51 are large and have a large curved surface, the curl cord 10 can be smoothly pulled out and stored.

It is a top view of the body composition meter concerning an embodiment. It is a figure which shows the use condition of a body composition meter. It is a top view of the outer side of one case which comprises the casing of the curl cord winding tool built in the body composition meter. It is a top view inside one case which comprises the casing of the curl cord winding tool. It is the perspective view which looked at one reel member which comprises the reel of the curl cord winding tool built in the body composition meter from the inner side. It is a top view of the outer side of one reel member which comprises the reel of the curl cord winding tool. It is a top view of the inner side of one reel member which comprises the reel of the curl cord winding tool. It is the perspective view which looked at the other reel member which comprises the reel of the curl cord winding tool incorporated in the same body composition meter from the inner side. It is a top view inside the other reel member which comprises the reel of the curl cord winding tool. It is the side view (a) of the other reel member which comprises the reel of the curl winding tool, and the top view (b) of the outside. It is the top view (a) of the outer side of the other case which comprises the casing of the curl cord winding tool built in the same-body composition meter, and sectional drawing in the AA line of (a). It is a top view inside the other case which comprises the casing of the curl cord winding tool. It is the side view seen from the arrow B of Fig.11 (a) of the other case which comprises the casing of the curl winding tool. It is a schematic back view of the body composition meter in a state in which the back cover of the weight measuring unit is removed (when the curl cord is stored). It is a schematic back view of the body composition meter in a state in which the back cover of the weight measuring unit is removed (when the curl cord is pulled out).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body composition meter 2 Weight measuring part 3 Composition meter main body 10 Curl cord 20 Case (casing)
21 Doorway 26, 28 Projection (stopper)
30 Reel member (reel)
36,38 Protrusion (stopper)
40 Reel member (reel)
50 Case (casing)
51 Entrance / Exit 60 Curled Cord Winding Tool

Claims (6)

A body weight measuring unit having a foot electrode for measuring bioimpedance, a composition meter body having a hand electrode for measuring bioimpedance, and a cable for electrically connecting the body weight measuring unit and the composition meter body In the body composition meter, the body weight measurement unit includes at least a part of the composition meter main body and a storage unit that stores the cable.
The cable is a curl cord, and the storage portion is provided at a substantially central front side inside the weight measurement unit. The storage unit is provided with an entrance through which the curl cord is led in and out. inside provided curl cord winding sharpen the hand accommodating winding of the curl cord rearward than the housing portion, in the state where the housing the composition monitor main body to the housing portion, a portion of the curl cord is the curl It is taken up on the cord winding toggle, body composition meter which being located on the back side of the composition monitor main body with the remaining portion being received in the receiving portion.   The body composition meter according to claim 1, wherein the curl cord winder is disposed at a substantially central portion inside the weight measuring unit. The curl winder is
A casing having an inlet / outlet through which the curl cord enters and exits;
A reel for winding the curled cord, which is rotatably supported in the casing and to which one end of the curled cord is attached;
An urging member that has one end locked to the casing and the other end locked to the reel, and urges the reel to rotate in a direction to wind the curl cord;
The body composition meter according to claim 1 or 2, further comprising:   The body composition meter according to claim 3, wherein the curl cord winder includes a stopper that limits the rotation of the reel within one rotation.   When the curl cord winder is pulled out, the reel rotates before the curl cord is extended, and when the curl cord is stored, the curl cord winder is prior to the reel rotation. The body composition meter according to claim 3 or 4, wherein a spring constant for expansion and contraction of the curl cord and a rotational biasing force of the biasing member are set so that the cord contracts.   The body composition meter according to claim 3, 4 or 5, wherein the curl cord winder has an entrance / exit of the casing also serving as an entrance / exit of the weight measuring section.