JP2017153767A - Band and body wearing-type electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biological information detection device that can maintain a state that a sensor part is compressed onto a subject by a given pressure even when the subject moves.SOLUTION: A biological information detection device 100 includes: a band body 11 (12) including a top face 11f (12f) as a first face; first stretchable parts 21, 22 connected to the band body, of which shapes vary along the top face; and second stretchable parts 310, 320 connected to the band body, of which shapes vary along a flat face crossing with the top face.SELECTED DRAWING: Figure 1B

Description

  The present invention relates to a band and a body-mounted electronic device including the band.

  In recent years, wristwatch-type activity meters (biological information detection devices) have been commercialized by various companies due to improvements in sensing technology. In addition, a band used for fixing such an activity meter, a watch (clock), etc., for example, to the arm of a subject has been invented. As such a conventional technique, for example, a technique described in Patent Document 1 is disclosed.

  In the invention described in Patent Document 1, as shown in FIG. 1 of the same document, the band is stretchable and has a shape that can easily cope with a change in arm diameter. Specifically, since the shape is easy to extend in the longitudinal direction of the band, the sensor unit provided on the back surface of the activity meter can be brought into close contact with the skin surface with a predetermined pressure.

JP 2012-90975 A

  However, in recent years, there is an increasing need for sensing biological information not only in a conventional activity meter (for example, a pulse meter) but also in sports equipment used for intense movement such as a GPS-equipped running watch. In addition, even with the use of an activity meter, there are models that wear and measure all day long, and the same situation as sports equipment can occur. When the band disclosed in Patent Document 1 is used in a device used for such intense movement, a large gravitational acceleration is applied to the device main body due to a strong arm swing or the like, and the expansion / contraction part provided in the band is extended in the extension direction. Forces in different directions may be applied. As a result, the device body shakes, twists, or tilts according to the movement of the arm. In this case, the sensor unit disposed on the back cover of the device main body cannot be kept in close contact with the skin surface, and there is a risk of erroneous detection of the sensor signal.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A band according to this application example includes a band main body including a first surface, a first stretchable portion connected to the band main body and changing in shape along the first surface, and the band main body. And a second stretchable portion whose shape changes along a plane intersecting the first surface.

  According to the band described in this application example, the first stretchable portion can be stretched in various directions by the first stretchable portion and the second stretchable portion whose shapes change along different planes. And the intensity | strength of the expansion-contraction part containing a 2nd expansion-contraction part can be strengthened. Thereby, it is possible to suppress the occurrence of a band defect due to the breakage of the expansion / contraction part.

  Application Example 2 In the band according to the application example described above, the second stretchable part has one end on the band main body side and intersects the first surface at the one end. Preferably, the band main body has a recessed portion at a position corresponding to the protruding portion, and the protruding portion is inserted into the recessed portion.

  According to this application example, the second stretchable part is easily connected to the band main body by inserting the protrusion protruding from the end in the direction intersecting the first surface into the concave part of the band main body. In addition, it is possible to connect securely.

  Application Example 3 In the band according to the application example described above, the first wall portion, the second wall portion facing the first wall portion, and the band main body are covered at the one end portion. A third connecting the first wall and the second wall on the side of the first wall and the second wall facing the mounted body when mounted on a mounting body; It is preferable that the protruding portion protrudes from the third wall portion.

  According to this application example, since the protruding portion protruding from the third wall portion located on the mounted body side is inserted into the concave portion of the band main body, the bottom surface side (side facing the mounted body) is set to the inside. Even if the main body is deformed so as to be curved, it is possible to prevent the protrusion from coming out of the recess.

  Application Example 4 In the band described in the application example described above, it is preferable that the protrusion has an inclined surface with a height from the third wall portion decreasing toward the band main body side at the tip portion. .

  According to this application example, when the second stretchable part is fitted and attached toward the band main body, it can be fitted while following the inclined surface with respect to the obstacle part, and the fitting work can be easily performed. It becomes possible to do.

  Application Example 5 In the band described in the application example described above, it is preferable that the material of the second stretchable part and the material of the first stretchable part are different from each other.

  According to this application example, it is possible to change the strength and deformation of the first stretchable part and the second stretchable part, and it is possible to improve durability against forces applied from various directions.

  Application Example 6 In the band described in the application example described above, it is preferable that the second stretchable part is detachable from the band main body part.

  According to this application example, it is possible to easily change the strength of the stretchable part by replacing the second stretchable part. In other words, it is possible to increase the degree of freedom in the specifications of the stretchable part including the first stretchable part and the second stretchable part.

  Application Example 7 The body-mounted electronic device according to this application example is connected to the case, the band main body including the first surface, and the band main body, and the shape changes along the first surface. And a band connected to the case. The band includes a first elastic part and a second elastic part whose shape changes along a plane intersecting the first surface.

  According to this application example, the case where the case is connected to the mounted body or the force applied after the connection by the first stretchable portion and the second stretchable portion whose shapes change along different planes can be various. It is possible to expand and contract in the direction, and to increase the strength of the expansion / contraction part. Thereby, generation | occurrence | production of malfunctions, such as a failure | damage of an expansion-contraction part, can be suppressed. Moreover, when the elastic part including the first elastic part and the second elastic part is stably deformed, it is possible to suppress excessive movement of the case and to enhance the feeling of fitting (fit feeling). Become.

  Application Example 8 In the body-mounted electronic device according to the application example described above, the case includes a first hole portion, and the first extendable portion includes a second hole portion. The second stretchable part includes a second end part having a third hole part, and the first stretchable part and the second stretchable part include the first hole part. It is preferable that the case is connected to the case by a bar member inserted through the second hole and the third hole.

  According to this application example, this makes it possible to easily prevent relative displacement between the case and the expansion / contraction part including the first expansion / contraction part and the second expansion / contraction part.

  Application Example 9 In the body-mounted electronic device according to the application example described above, the second stretchable part includes a protrusion protruding in the direction intersecting the first surface at the one end, The band main body preferably includes a recess at a position corresponding to the protrusion, and the protrusion is inserted into the recess.

  According to this application example, the second stretchable portion is easily and reliably connected to the band main body by inserting the protrusion protruding in the direction intersecting the first surface into the concave portion of the band main body. It becomes possible to connect to the band body. Further, it is possible to easily change the strength of the stretchable part by replacing the second stretchable part, in other words, the configuration of the stretchable part including the first stretchable part and the second stretchable part. The degree of freedom can be increased.

1 is a top (front) perspective view illustrating a configuration example of a biological information detection apparatus according to a first embodiment of a body-mounted electronic device. The lower surface (back surface) perspective view of the biological information detection apparatus which concerns on 1st Embodiment. The top perspective view which shows the structural example of the conventional biological information detection apparatus. The bottom perspective view which shows the structural example of the conventional biometric information detection apparatus. Explanatory drawing of the problem of the conventional biological information detection apparatus. Explanatory drawing of the problem of the conventional biological information detection apparatus. Explanatory drawing of the problem of the conventional biological information detection apparatus. The front perspective view which shows the detailed structural example of a 2nd expansion-contraction part. The back perspective view which shows the detailed structural example of a 2nd expansion-contraction part. The top view which shows the 1st expansion-contraction part and 2nd expansion-contraction part when it is natural length. The top view which shows the 1st expansion-contraction part and 2nd expansion-contraction part when it expand | extends. BB sectional drawing of FIG. 5A explaining the deformation | transformation (expansion / contraction) of a 2nd expansion-contraction part. The upper surface (surface) perspective view which shows the structural example of the biometric information detection apparatus which concerns on 2nd Embodiment of a body-mounted electronic device. The lower surface (back surface) perspective view of the biological information detection apparatus which concerns on 2nd Embodiment. The upper surface perspective view explaining the attachment to the case of a band (1st expansion-contraction part) and a 2nd expansion-contraction part. The top view explaining the attachment to the case of a band (1st expansion-contraction part) and a 2nd expansion-contraction part (top view). Sectional drawing equivalent to the AA cross section of FIG. 5A which shows the structure of the modification 1 of a 2nd expansion-contraction part. The front perspective view which shows the structure of the modification 2 of a 2nd expansion-contraction part. The back perspective view which shows the structure of the modification 2 of a 2nd expansion-contraction part.

  Hereinafter, this embodiment will be described. In addition, this embodiment demonstrated below does not unduly limit the content of this invention described in the claim. In addition, all the configurations described in the present embodiment are not necessarily essential configuration requirements of the present invention.

(First embodiment)
A configuration example of the biological information detection apparatus 100 according to the first embodiment of the body-mounted electronic device of the present invention will be described with reference to FIGS. 1A and 1B. FIG. 1A shows a perspective view from the upper surface (front surface) side of the biological information detecting apparatus 100 as a body-mounted electronic device of the present invention, and FIG. 1B shows a body-mounted electronic device of the present invention. The perspective view from the lower surface (back surface) side of the biometric information detection apparatus 100 is shown. Note that in this specification, the display surface side of the electronic device will be described as the upper or front side, and the side opposite to the display surface (the side in contact with the subject when worn) will be described as the lower or back side.

  A biological information detection apparatus 100 as a body-mounted electronic device is mounted on a subject (a body to be mounted), and a case unit as a case provided with a sensor unit 90 that detects biological information of the subject (a body to be mounted). 30 and a band part (first band part 31 and second band part 32) as a band attached to the case part 30. Hereinafter, the first band part 31 and the second band part 32 may be collectively referred to as a band part 31 (32). Note that the case unit 30 may have a top case and a bottom case. In the following, the longitudinal direction of the band part 31 (32) is the first direction (shown as DR1 in FIG. 5B), and the width direction of the band part 31 (32) intersecting the first direction is the second direction ( A plane direction intersecting with the upper surface 11f of the band main body 11 will be described as a third direction (shown as DR3 in FIG. 5C).

  Furthermore, the biological information detection device 100 includes a fixing part (leather, fixed leather) 40, a connecting part (beautiful tablet) 50, a display part 70, an operation part 80, and a sensor part 90. However, the biological information detection apparatus 100 is not limited to the configuration shown in FIGS. 1A and 1B, and various modifications such as omission of some of these components and addition of other components are possible. It is.

  The band unit 31 (32) includes a band main body (the first band main body 11 and the second band main body 12), the first expansion and contraction units 21 and 22, and the second expansion and contraction units 310 and 320. Have. Hereinafter, the first band main body 11 and the second band main body 12 may be collectively referred to as a band main body 11 (12). The band main body 11 (12) is connected to the case portion 30 via the first stretchable portions 21 and 22 and the second stretchable portions 310 and 320.

  Specifically, the first band part 31 is attached to one end of the case part 30. The first band portion 31 has an upper surface 11 f as a first surface and a lower surface 11 r on the opposite surface, and extends along a first direction that is a longitudinal direction of the first band portion 31. The main body 11, the first elastic part 21 connected to the first band main body 11 on the case part 30 side and capable of extending along the upper surface 11 f (first direction) as the first surface, and the case part 30 side And a second stretchable part 310 that is connected to the first band body 11 and can change its shape along a plane (third direction) intersecting the upper surface 11f.

  Further, the second band portion 32 is attached to the other end of the case portion 30. The second band portion 32 has an upper surface 12 f as a first surface and a lower surface 12 r on the opposite surface, and extends along a first direction that is the longitudinal direction of the second band portion 32. The main body 12 is connected to the second band main body 12 on the case portion 30 side, and extends along the upper surface 11f (first direction) as the first surface, and the case portion 30 side A second stretchable portion 320 connected to the second band body 12 and capable of changing its shape along a plane intersecting the upper surface 12f.

  In the example of FIGS. 1A and 1B, the second stretchable parts 310 and 320 shield a part of the first stretchable parts 21 and 22 so that they cannot be directly viewed from the outside. 21 and 22 are illustrated by dotted lines. As shown in the figure, the first stretchable parts 21 and 22 are provided with a stretchable part that is bent (shaped with folding) from the band part 31 (32), and the stretchable part extends along the upper surface 11f (first direction). And stretch.

  Then, the connecting part (beautiful tablet) 50 connects the first band part 31 and the second band part 32. The fixing part (free leather, constant leather) 40 fixes the first band body 11 along the second band body 12 in a state where the first band part 31 and the second band part 32 are connected. .

  The display unit 70 disposed in the case unit 30 displays various information. The operation unit 80 receives user operations. The sensor unit 90 is provided on the back cover (back surface) of the case unit 30 and detects biological information of the subject while being pressed against the subject.

(Configuration example of conventional biological information detection apparatus)
On the other hand, Patent Document 1 described above exemplifies a biological information detection apparatus 100a as shown in FIGS. 2A and 2B. 2A is a top perspective view illustrating a configuration example of a conventional biological information detection apparatus, and FIG. 2B is a bottom perspective view illustrating a configuration example of a conventional biological information detection apparatus. The biological information detection apparatus 100a shown in FIGS. 2A and 2B does not have the second extendable parts 310 and 320, unlike the biological information detection apparatus 100 shown in FIGS. 1A and 1B.

  As described above, in the biological information detecting apparatus 100a having a band as shown in FIGS. 2A and 2B, a large gravitational acceleration is applied to the device body due to a strong arm swing or the like, and the first provided in the band portion 11a (12a). A force in a direction different from the extension direction may act on the expansion / contraction part 21a (22a). As a result, the device main body (case 30a) is shaken, twisted, or tilted according to the movement of the arm.

  Such a problem will be described with reference to FIGS. 3A, 3B, and 3C. For example, FIGS. 3A to 3C show an example of a problem of a conventional biological information detection apparatus. FIG. 3A illustrates the band BD and the subject surface SF when not stretched. From this state, when the band BD extends in the extending direction of the first expandable portions 21a and 22a (first direction DR1 described later), the state shown in FIG. 3B is obtained. In the state of FIG. 3B, as in FIG. 3A, since the sensor unit SE is in close contact with the subject surface SF, the sensor signal can be normally acquired and no problem occurs.

  On the other hand, as shown in FIG. 3C, when a force is applied in a direction (second direction DR2) different from the extension direction (first direction DR1) of the first expandable parts 21a and 22a, the sensor part SE Rises from the object surface SF as indicated by P1. Therefore, the sensor unit SE cannot normally acquire the sensor signal, which causes a problem. Further, by repeating such an operation, there is a possibility that the first expansion / contraction portions 21a and 22a are fatigued and damaged.

  Therefore, in the present embodiment, as shown in FIGS. 1A and 1B, in addition to the first elastic parts 21 and 22 extending in the direction along the upper surfaces 11f and 12f as the first surface, There are provided second extendable portions 310 and 320 whose shapes can be changed in a direction along a plane intersecting the upper surfaces 11f and 12f, which is a direction different from the extending direction of the portions 21 and 22.

  The first telescopic parts 21 and 22 are formed integrally with the band main body 11 (12), are located on the case part 30 side of the band main body 11 (12), and extend from the band main body 11 (12). . Further, the end portions (first end portions) 27 and 28 (see FIG. 7A) positioned on the case portion 30 side are not shown in FIGS. Notches 25 and 26 (see FIG. 7A) for arranging the other end portions 312 and 322 (see FIG. 7A) of the telescopic portions 310 and 320 are provided, and the case portion 30 is provided on both sides of the notches 25 and 26. Are provided with holes (holes HL2 and HL3 shown in FIG. 7A). The first telescopic parts 21 and 22 have a portion folded in a U shape in a plan view between the band main body 11 (12) side and the end parts (first end parts) 27 and 28, By expanding and contracting the folded portion, it is possible to expand and contract along the upper surfaces 11f and 12f (first direction) as the first surface.

  In addition, the 1st expansion-contraction parts 21 and 22 are not restricted to the structure formed integrally with the band main body 11 (12), The 1st expansion-contraction parts 21 and 22 and the band main body 11 (12) are separate bodies. The structure which is comprised and the 1st expansion-contraction parts 21 and 22 are connected to the band main body 11 (12) in the position of the edge on the opposite side to the edge parts (1st edge part) 27 and 28 may be sufficient.

  As shown in FIGS. 4A and 4B, the second stretchable portions 310 and 320 include one end portions 330 and 340 disposed on the side of the band main body 11 (12) (see FIGS. 1A and 1B), The other end (second end) 312, 322 disposed on the side opposite to the end 330, 340 (the case 30 side), the one end 330, 340, and the other end 312, 322 Connecting portions 311 and 321 are provided. In addition, the 2nd expansion-contraction part 310,320 is arrange | positioned corresponding to each of the 1st expansion-contraction part 21,22.

  One end portions 330 and 340 include first wall portions 332 and 342, second wall portions 333 and 343, third wall portions 331 and 341, fourth wall portions 334 and 344, Two protrusions 217 and 227. The first wall portions 332 and 342 and the second wall portions 333 and 343 are provided when the band body 11 (12) is attached to a subject (not shown in FIGS. 4A and 4B) as an attachment body. It is arranged opposite to the direction crossing the specimen. The third wall portions 331 and 341 connect the first wall portions 332 and 342 and the second wall portions 333 and 343 on the side facing the subject (not shown). And the 4th wall part 334,344 is arrange | positioned facing the 3rd wall part 331,341, and has connected the 1st wall part 332,342 and the 2nd wall part 333,343. .

  The second stretchable portions 310 and 320 include first wall portions 332 and 342, second wall portions 333 and 343, third wall portions 331 and 341, and fourth wall portions 334 and 344. Are arranged so as to surround the outer periphery of the first telescopic parts 21 and 22 and the band body 11 (12), and the band part 31 is formed by the projecting parts 217 and 227. Connected to (32).

  In the present embodiment, as described above, the third wall portions 331 and 341 are provided on the side facing the subject (not shown). In other words, when the band part 31 (32) is attached to the living body surface (not shown) of the subject, the second stretchable portions 310 and 320 are subject to the living body surface of the subject by the third wall portions 331 and 341. It is provided at a position in contact with (not shown). As described above, when the sensor unit 90 is pressed against the living body surface (not shown) of the subject and the band unit 31 (32) is wound, the third wall portions 331 and 341 of the second expansion and contraction units 310 and 320 are provided. Is also pressed against the living body surface of the subject, and a frictional force can act between the third wall portions 331 and 341 and the living body surface of the subject.

  The projecting portions 217 and 227 are disposed on the third wall portions 331 and 341 facing the band main body 11 (12) in the region adjacent to the first stretchable portions 21 and 22, and the third wall portions 331 and 341 Projecting toward the fourth wall portions 334 and 344. The protrusions 217 and 227 are arranged two by two in each of the third walls 331 and 341 in the second direction DR2 (see FIG. 5B), and have a substantially rectangular cross section. It has a tip on the side opposite to the walls 331 and 341. Then, the protrusions 217 and 227 are inserted into the through holes 117 (see FIG. 5A) as recesses provided in the band main body 11 (12), so that the second stretchable parts 310 and 320 are connected to the band part 31. Connected to (32). In addition, the cross-sectional shape of the protrusions 217 and 227 is not limited to a rectangular shape, and may be another shape such as a circular shape or an elliptical shape.

  As described above, the projecting portions 217 and 227 are inserted into the through holes 117 (see FIG. 5A) provided in the band main body 11 (12), and the second stretchable portions 310 and 320, the band portion 31 (32), Is connected, the connection can be more reliably performed. Specifically, even if the band portion 31 (32) is curved in an attempt to press the case portion 30 against a subject (not shown), the third portions of the band main body 11 (12) and the second expansion and contraction portions 310 and 320 are used. Since the wall portions 331 and 341 are respectively curved in the same direction, it is possible to prevent the protruding portions 217 and 227 from coming out from the through hole 117 or from being easily removed.

  Further, the tip of the projecting portion 217 (227) extends from the third wall portions 331 and 341 from the case portion 30 side to the band body 11 (12) side, in other words, from the case portion 30 side to the subject side. It is preferable to have an inclined surface FT whose height decreases. In this embodiment, the configuration in which the two protrusions 217 (227) are provided side by side in the second direction DR2 (see FIG. 5B) is illustrated, but the number or arrangement of the protrusions 217 (227) is exemplified. The position is not limited to this.

  As described above, the inclined surfaces FT are provided at the tip portions of the projecting portions 217 and 227, so that the second stretchable portions 310 and 320 can be easily fitted into the band portion 31 (32). Specifically, when the second elastic parts 310 and 320 are fitted through the outside of the first elastic parts 21 and 22 toward the band main body 11 (12), the first elastic parts 21 and 22 are fitted. It is possible to fit the inclined surface FT while following the inclined surface FT with respect to a part that obstructs the fitting, such as each part. In addition, when the protrusion 217 (227) is inserted into the through hole 117 (see FIG. 5A) as a recess for fixing the second stretchable parts 310, 320 provided in the band body 11 (12). In addition, the inclined surface FT can be used as a guide surface, which can facilitate the insertion.

  The other end portions 312 and 322 of the second stretchable portions 310 and 320 have a hole portion HL3 penetrating in the second direction DR2 (see FIG. 5B). The hole portion HL3 is disposed at an attachment position when second expansion portions 310 and 320, which will be described later with reference to FIGS. 7A and 7B, are attached to the case portion 30, and is penetrated through the bar member (spring bar) BB. It is a hole.

  The connection portions 311 and 321 are located between the one end portions 330 and 340 and the other end portions 312 and 322, and along the first direction, the one end portions 330 and 340 and the other end portion 312. , 322 are connected. The connecting portions 311 and 321 have a plate shape extending along the upper surfaces 11f and 12f of the band portion 31 (32) and are curved in a direction intersecting with the upper surfaces 11f and 12f. The connecting portions 311 and 321 expand and contract in the first direction by changing the shape in a direction (third direction) along the plane intersecting the upper surfaces 11f and 12f as the first surfaces at the curved portions. be able to.

  Such second stretchable portions 310 and 320 are made of a flexible resin such as urethane resin or silicone resin, or a plate spring such as phosphor bronze, beryllium copper, spring steel, or spring stainless steel. Can be composed of materials. In addition, one end part 330,340, the other end part 312,322, and the connection part 311,321 may be comprised integrally with the same material, and may be comprised with a different material.

  As shown in FIG. 5A, the band portion 31 (32) has two through holes 117 as concave portions provided in the band main body 11 (12) in a region adjacent to the first extendable portions 21 and 22. Yes. The two through-holes 117 are provided corresponding to the protrusions 217 and 227 of the second expansion / contraction portions 310 and 320 described above. The through-hole 117 is not limited to the through-hole penetrating the front and back surfaces of the first band main body 11 and the second band main body 12, and the protrusions 217 and 227 of the second stretchable parts 310 and 320 can be inserted. It can be a bottomed recess. Further, the number or arrangement position of the through holes 117 is not limited to this example.

  FIG. 5 is a diagram illustrating the relationship between the first expansion and contraction units 21 and 22 and the second expansion and contraction units 310 and 320 in the band unit 31 (32) of the biological information detection apparatus 100 according to the first embodiment of the body-mounted electronic device. This will be described with reference to FIGS. 5A, 5B, and 5C. FIG. 5A is a plan view showing a first stretchable part and a second stretchable part when the length is natural. FIG. 5B is a plan view showing the first elastic part and the second elastic part when extended. FIG. 5C is a cross-sectional view taken along the line BB in FIG. 5A for explaining the deformation (extension / contraction) of the second extension / contraction part.

  As shown in FIGS. 5A and 5B, the second stretchable parts 310 and 320 are connected to the band main body 11 (12) by inserting the protrusions 217 and 227 into the through holes 117 of the band main body 11 (12). Has been. As shown in FIG. 5A, one end portion 330, 340 of the second stretchable portion 310, 320 is opposed to the through hole 117 of the band main body 11 (12) and has a natural length when no force is applied. It arrange | positions so that a part of certain 1st expansion-contraction parts 21 and 22 may be covered. The other end portions 312 and 322 located on the case portion 30 side of the second stretchable portions 310 and 320 are inserted into a hole HL3 (see FIG. 7A) penetrating in the second direction DR2 (see FIG. 5B). It is attached to the case portion 30 by a bar member (spring bar) BB (see FIG. 7A).

  The lengths L1 of the connecting portions 311 and 321 in the plan view (top view) in the extension direction (first direction DR1) of the first expansion and contraction portions 21 and 22 are natural lengths. Is set based on the length L0. In detail, the length L4 of the part which overlaps with the band main body 11 (12) of one edge part 330,340 is set to length L0 of the 1st expansion-contraction part 21 and 22 of natural length when the force is not added. In addition, the total length L3 of the second stretchable parts 310, 320 is set. Then, by subtracting the length of one end 330, 340 and the length of the other end 312 322 from the total length L3, the length L1 of the connecting portions 311 321 in plan view (top view) is obtained. Can be set. Then, the curved shape is obtained based on the amount of extension in the first direction DR1, and the configuration of the second extendable portions 310 and 320 can be determined.

  Further, as shown in FIG. 5B, when the first stretchable parts 21 and 22 are stretched in the stretch direction (first direction DR1), the second stretchable parts 310 and 320 are curved shapes of the connection parts 311 and 321. Is extended in the extension direction (first direction DR1). This will be described in detail with reference to FIG. 5C.

  When the first elastic parts 21 and 22 have a natural length, the connection parts 311 and 321 of the second elastic parts 310 and 320 are curved as shown by the two-dot chain line in FIG. 5C. I am doing. And when the 1st expansion-contraction parts 21 and 22 are extended | stretched in the expansion | extension direction (1st direction DR1), the connection parts 311 and 321 are pulled by the expansion | extension direction (1st direction DR1). As described above, the connecting portions 311 and 321 of the second stretchable portions 310 and 320 can be deformed in a direction along the plane intersecting the upper surfaces 11f and 12f of the band portion 31 (32) (third direction DR3). Therefore, by this pulling force, the curved portion can be deformed (moving amount D1) in the third direction DR3, and can be expanded in the extending direction (first direction DR1). 5C shows an example in which the third direction DR3 is orthogonal (perpendicular) to the first direction DR1, but the third direction DR3 is not necessarily orthogonal to the first direction DR1. You don't have to.

  In addition, since the connection parts 311 and 321 are extended in the shape of a thin plate along the upper surfaces 11f and 12f of the band part 31 (32), they are easily deformed in the third direction DR3, but the second part shown in FIG. 5B. It is relatively difficult to deform in the direction DR2. Thereby, the movement to the direction other than the expansion | extension direction (1st direction DR1) of the 1st expansion-contraction parts 21 and 22, for example, the movement to 2nd direction DR2, can be suppressed.

  According to the band 31 (32) configured as described above, and the body-mounted biological information detecting device 100 using the band 31 (32), the first expansion and contraction whose shape changes along different planes. Since the two elastic parts, ie, the parts 21, 22 and the second elastic parts 310, 320, can be extended and contracted in various directions, the first elastic parts 21, 22 and the second elastic parts 310, 320 are It is possible to increase the strength of the expansion / contraction part. As a result, it is possible to suppress the occurrence of the malfunction of the band portion 31 (32) due to the breakage of the stretchable portion or the like.

  Further, the band part 31 (32) is extended by the first extension parts 21 and 22 and the second extension parts 310 and 320, for example, according to the circumference of the arm of the subject (object to be mounted), For example, the sensor unit 90 can be pressed against the subject with a given pressure. Further, even when the circumference of the portion around which the band portion 31 (32) is wound changes while the subject is wearing the biological information detection apparatus 100, the first telescopic portions 21, 22 and the second It is also possible to automatically extend the expansion / contraction portions 310 and 320 to maintain the state in which the sensor portion 90 is pressed against the subject with a given pressure.

  Further, the second stretchable parts 310 and 320 suppress the movement of the first stretchable parts 21 and 22 in directions other than the extending direction (first direction DR1), for example, the movement in the second direction DR2. It becomes possible. Thereby, it can prevent that the 1st expansion-contraction parts 21 and 22 excessively twist or tilt, and it becomes possible to suppress damage to the 1st expansion-contraction parts 21 and 22 by excessive twist or inclination. . In addition, even when the subject moves, it is possible to maintain the state in which the sensor unit 90 is pressed against the subject with a given pressure, and as a result, erroneous detection of the sensor signal can be prevented.

  Note that the material of the second stretchable parts 310 and 320 and the material of the first stretchable parts 21 and 22 may be different from each other. For example, the first stretchable parts 21 and 22 are made of a flexible material, and the second stretchable parts 310 and 320 are made harder than the first stretchable parts 21 and 22. Further, the first stretchable parts 21 and 22 are formed of a flexible resin such as urethane resin or silicone resin, and the second stretchable parts 310 and 320 are made of a leaf spring material such as phosphor bronze or beryllium copper. It is good also as forming.

  Thus, by making the materials and materials of the first elastic parts 21 and 22 and the second elastic parts 310 and 320 different, the first elastic parts 21 and 22 and the second elastic parts 310 and 320 The strength and the degree of deformation can be changed, and durability against forces applied from various directions can be enhanced. Moreover, it becomes possible to suppress a deformation | transformation to directions other than a predetermined direction.

  Moreover, the 2nd expansion-contraction part 310,320 can be set as the structure which can be easily attached or detached with respect to the band main body 11 (12). For example, by adopting a configuration in which the fourth wall portions 334 and 344 facing the third wall portions 331 and 341 provided with the protruding portions 217 and 227 are not provided, the protruding portions 217 and 227 are connected to the band main body 11 (12. ) Can be easily detached and attached.

  Thus, if the 2nd expansion-contraction part 310,320 can be replaced | exchanged easily, the intensity | strength and deformation | transformation form of the expansion-contraction part containing the 1st expansion-contraction part 21,22 and the 2nd expansion-contraction part 310,320 will be changed easily. It becomes possible to do. In other words, it is possible to increase the degree of freedom in the specifications of the extendable part.

(Second Embodiment)
Next, a configuration example of the biological information detection apparatus 101 according to the second embodiment of the body-mounted electronic device of the present invention will be described with reference to FIGS. 6A and 6B. 6A shows a perspective view from the upper surface (front surface) side of the biological information detecting apparatus 101 as the body-mounted electronic device of the present invention, and FIG. 6B shows the body-mounted electronic device of the present invention. The perspective view from the lower surface (back surface) side of the biometric information detection apparatus 101 is shown.

  In the biological information detecting apparatus 100 according to the first embodiment described above, two sets of the first elastic parts 21 and 22 connected to the band part 31 (32) and the corresponding second elastic parts 310 and 320 are provided. In other words, the first band part 31 includes the first elastic part 21 and the second elastic part 310, and the second band part 32 includes the first elastic part 22 and the second elastic part 22. The example of a structure provided with the expansion-contraction part 320 was demonstrated.

  In contrast, the biological information detecting apparatus 101 according to the second embodiment of the body-mounted electronic device has a first band body 11 constituting the first band unit 31 as shown in FIGS. 6A and 6B. 1 set of the 1st expansion-contraction part 21 connected to, and the 2nd expansion-contraction part 310 corresponding to it. That is, as shown in FIG. 6A and FIG. 6B, the second band portion 132 is not provided with a stretchable portion, and the second band main body 112 is directly connected to the case portion 30. Here, since the structure of the 1st expansion-contraction part 21 provided in the 1st band part 31 and the 2nd expansion-contraction part 310 is the same as that of the structure of the above-mentioned 1st Embodiment, description is abbreviate | omitted. The other configurations are also the same as those of the first embodiment described with reference to FIGS. 1A and 1B, and thus the description thereof is omitted.

  As described above, according to the biological information detection apparatus 101 according to the second embodiment including the first extension part 21 and the second extension part 310 of one set, the shape changes along different planes. Since the two stretchable portions of the first stretchable portion 21 and the second stretchable portion 310 can be stretched in various directions, the strength of the stretchable portion including the first stretchable portion 21 and the second stretchable portion 310 is possible. Can be strengthened. As a result, it is possible to suppress the occurrence of defects in the first band portion 31 due to the breakage of the stretchable portion or the like.

  Also in the configuration in which one set of the first elastic part 21 and the second elastic part 310 is provided, for example, the first band part 31 is extended according to the circumference of the arm of the subject (object to be attached). Thus, the sensor unit 90 can be pressed against the subject with a given pressure. In addition, even when the circumference of the portion around which the first band unit 31 and the second band unit 132 are wound changes while the subject is wearing the biological information detection apparatus 101, the first extendable unit 21 and the second expansion / contraction part 310 can be automatically extended to maintain the state in which the sensor part 90 is pressed against the subject with a given pressure.

  As described above, the biological information detection apparatus 101 according to the second embodiment also includes the biological information detection apparatus 101 according to the second embodiment provided with a set of expansion / contraction parts including the first expansion / contraction part 21 and the second expansion / contraction part 310. The same effect as the device 100 is obtained.

(Band and case mounting structure)
Here, with reference to FIG. 7A and FIG. 7B, the example of attachment (connection) of the band part 31 (32) which has an expansion-contraction part and the case part 30 in the above-mentioned 1st Embodiment and 2nd Embodiment is demonstrated. . 7A and 7B are explanatory diagrams for explaining the attachment of the band (expandable portion) to the case, FIG. 7A is a top perspective view seen from the top surface side, and FIG. 7B is a plan view seen from the top surface. It is a figure (top view). Note that the top perspective view of FIG. 7A shows a state in which the connection portion of the second stretchable portion and the upper wall (fourth wall portion) at one end portion are omitted for convenience of illustration, and the first stretchable portion is visible. Show. The top perspective view of FIG. 7A shows a state before the spring bar BB is inserted. Moreover, the top view shown to FIG. 7B has shown the attachment state after inserting spring bar BB.

  As a specific example of attachment, as shown in FIGS. 7A and 7B, a hole HL1 and a hole HL5 as first holes are provided in the attachment portion of the case 30. In addition, holes HL2 and HL4 as second holes are provided on the ends (first ends) 27, 28 on the attachment side of the first elastic parts 21, 22 of the band part 31 (32), A hole portion HL3 as a third hole portion is provided on the other end portion (second end portion) 312 and 322 located on the attachment side of the second stretchable portions 310 and 320. Then, by inserting a common bar member (spring bar) BB through these holes HL1, HL2, HL3, HL4 and HL5, the first telescopic part 21 of the band part 31 (32) at the mounting position. , 22 and the second telescopic parts 310, 320 can be attached to the case part 30.

  In addition, the configuration of the attachment (connection) between the band part 31 (32) and the case part 30 is such that the attachment parts of the first extension parts 21 and 22 and the second extension parts 310 and 320 in the above example are located in the center part. However, the present invention is not limited to the configuration in which the attachment portions of the case portion 30 are disposed on both sides of the portion.

  As another configuration example, for example, the attachment part (the other end part 312, 322) of the second stretchable part 310, 320 is arranged in the center part, the attachment part of the case part 30 is arranged on both sides thereof, It can be configured by various combinations such as arranging the attachment parts of the first telescopic parts 21 and 22 on both sides of the attachment part of the case part 30. Even in such a configuration, a common bar member (spring bar) BB similar to that described above is inserted into each of the holes HL1, HL2, HL3, HL4, and HL5, so that the band portion 31 (32) at the mounting position. And the case portion 30 can be attached (connected).

(Modification 1 of 2nd expansion-contraction part)
Next, Modification Example 1 of the second extendable parts 310 and 320 will be described with reference to FIG. FIG. 8 is a cross-sectional view corresponding to the AA cross section of FIG. 5A, showing the configuration of Modification Example 1 of the second stretchable part (one end part).

  One end portions 330 and 340 of the second stretchable portions 310 and 320 according to the above-described embodiment are opposed to the first wall portions 332 and 342, the second wall portions 333 and 343, and the biological surface of the specimen. Third wall portions 331 and 341 connecting the first wall portions 332 and 342 and the second wall portions 333 and 343 and a fourth wall positioned on the opposite side of the third wall portions 331 and 341. As described above, the wall portions 334 and 344 are integrally formed.

  On the other hand, one end portions 330a and 340a of the second stretchable portions 310 and 320 according to the first modification shown in FIG. 8 are the third wall portions 333 and 343 and the third surface facing the living body surface LF. Connection portions with the wall portions 331 and 341 are divided by slit-shaped divided portions 332D and 342D. That is, the one end portions 330a and 340a of the second stretchable portions 310 and 320 according to the modification 1 are separated without being connected to the second wall portions 333 and 343 and the third wall portions 331 and 341. The structure which has been illustrated is illustrated.

  According to the one end portion 330a, 340a of the second stretchable portion 310, 320 having such a configuration, the second stretchable portion 310, 320 is connected to the band portion 31 (32) at the one end portion 330a, 340a. Mounting can be easily performed. Specifically, with respect to the third wall portions 331 and 341, the second wall portions 333 and 343 and the fourth wall portions 334 and 344 are opened with the dividing portions 332D and 342D as a boundary, and the band portion 31 Set to (32). Thereafter, the second wall portions 333 and 343 and the fourth wall portions 334 and 344 that have been opened are returned to their original positions, so that one end portions 330a and 340a (second expansion and contraction) are formed on the band portion 31 (32). Parts 310, 320) can be attached. In this manner, the one end portion 330a, 340a (second stretchable portion 310, 320) can be easily attached without fitting (pushing) like the ring-shaped one end portion 330a, 340a. .

(Modification 2 of 2nd expansion-contraction part)
Next, Modification 2 of the second extendable part will be described with reference to FIGS. 9A and 9B. FIG. 9A is a front perspective view showing a configuration of Modification Example 2 of the second extension / contraction part, and FIG. 9B is a rear perspective view showing a configuration of Modification Example 2 of the second extension / contraction part.

  In the embodiment described above, the width in the second direction DR2 (see FIG. 5B) of the connecting portions 311 and 321 of the second stretchable portions 310 and 320 is set to be substantially the same as that of the other end portions 312 and 322. Was illustrated.

  On the other hand, the second stretchable parts 310a and 320a according to the modification 2 shown in FIGS. 9A and 9B have the width in the second direction DR2 (see FIG. 5B) of the connection parts 311a and 321a on the other side. It is set to be larger than the width of the end portions 312 and 322. In the following description, the connection portions 311a and 321a will be mainly described, and the same configurations as those of the above-described embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  Specifically, the second stretchable portions 310a and 320a have one end portion 330 and 340, the other end portion 312 and 322, one end portion 330 and 340, and the other end, as in the above-described embodiment. And connection portions 311a and 321a for connecting the end portions 312 and 322. The connection portions 311a and 321a are located between the one end portions 330 and 340 and the other end portions 312 and 322 in the same manner as in the above-described embodiment, and are connected to the one end portion 330 along the first direction. 340 and the other end portions 312 and 322 are connected to each other.

  The connection portions 311a and 321a have a width larger than the width of the connection portions 311 and 321 in the embodiment, and the upper surfaces 11f and 12f of the band portion 31 (32) from the fourth wall portions 334 and 344 (see FIG. 1A). Is curved in a direction intersecting the upper surfaces 11f and 12f. In other words, the connection portions 311a and 321a of the second modification have a larger planar area than the connection portions 311 and 321 in the embodiment. Thereby, although the connection parts 311a and 321a have high rigidity in the plane direction, the rigidity in the direction intersecting the plane does not change significantly. Therefore, the shapes of the connecting portions 311a and 321a can be changed in a direction (third direction) along a plane intersecting the upper surfaces 11f and 12f as the first surfaces at the curved portions.

  According to the second expansion / contraction portions 310a and 320a according to the second modification, the widths of the connection portions 311a and 321a that are extended in a thin plate shape are set wide. In other words, since the lengths of the connecting portions 311a and 321a along the second direction DR2 (see FIG. 5B) become longer, the second direction DR2 is less likely to be deformed. Thereby, the movement to the direction different from the expansion | extension direction of the 1st expansion-contraction parts 21 and 22, for example, the movement to 2nd direction DR2, can be suppressed more. Therefore, it is possible to more significantly suppress the first stretchable parts 21 and 22 from being excessively twisted or tilted, and to prevent the first stretchable parts 21 and 22 from being damaged due to excessive twisting or tilting. It becomes possible. In addition, even when the subject moves, it is possible to maintain the state in which the sensor unit 90 is pressed against the subject with a given pressure, and as a result, erroneous detection of the sensor signal can be prevented.

  Note that the width dimensions of the connecting portions 311a and 321a are not limited to the settings in the above-described embodiment and modification example 2, and can be set as appropriate. For example, the width dimensions of the connection portions 311a and 321a can be set to the same width as the widths of the one end portions 330 and 340, for example.

  Although the present embodiment has been described in detail as described above, it will be easily understood by those skilled in the art that many modifications can be made without departing from the novel matters and effects of the present invention. Accordingly, all such modifications are intended to be included in the scope of the present invention. For example, a term described at least once together with a different term having a broader meaning or the same meaning in the specification or the drawings can be replaced with the different term anywhere in the specification or the drawings. In addition, the configuration and operation of the biological information detection apparatus are not limited to those described in the present embodiment, and various modifications can be made.

  DESCRIPTION OF SYMBOLS 11 ... 1st band main body, 11f ... Upper surface as 1st surface, 11r ... Lower surface, 12 ... 2nd band main body, 12f ... Upper surface as 1st surface, 12r ... Lower surface, 21,22 ... 1st expansion-contraction Part, 25, 26 ... notch, 27, 28 ... end part (first end part), 30 ... case part as a case, 31 ... first band part as a band, 32 ... second as a band Band unit 40... Fixing unit 50. Linking unit 70. Display unit 80. Operation unit 90. Sensor unit 100, 101 ... Biological information detection device as a body-mounted electronic device 117. Through hole, 217, 227 ... projection, 310, 320 ... second telescopic part, 311, 321 ... connection part, 312, 322 ... other end (second end), 330, 340 ... one end Part, 331, 341 ... third wall part, 332, 342 1st wall part, 333, 343 ... 2nd wall part, 334, 344 ... 4th wall part, HL1, HL5 ... hole part as 1st hole part, HL2, HL4 ... as 2nd hole part , HL3..., Hole as a third hole, FT... Inclined surface, DR1... First direction, DR2.

Claims (9)

A band body including a first surface;
A first stretchable part connected to the band body and changing in shape along the first surface;
A second stretchable part connected to the band body and changing in shape along a plane intersecting the first surface;
A band characterized by containing. The second elastic part has one end on the band body side,
A protrusion that protrudes in a direction intersecting the first surface at the one end;
The band body has a recess at a position corresponding to the protrusion,
The band according to claim 1, wherein the protrusion is inserted into the recess. At the one end,
A first wall;
A second wall facing the first wall;
When the band main body is mounted on the mounted body, the first wall section and the second wall section on the side of the first wall section and the second wall section facing the mounted body, And a third wall portion for connecting
The band according to claim 2, wherein the protruding portion protrudes from the third wall portion. The protrusion is
The band according to claim 3, wherein the band has an inclined surface with a height from the third wall portion decreasing toward the band main body side at the distal end portion.   The band according to any one of claims 1 to 4, wherein a material of the second stretchable part and a material of the first stretchable part are different from each other.   The band according to any one of claims 1 to 5, wherein the second stretchable part is detachable from the band main body part. Case and
A band body including a first surface;
A first stretchable part connected to the band body and changing in shape along the first surface;
A second stretchable portion whose shape changes along a plane intersecting the first surface, and a band connected to the case;
A body-mounted electronic device characterized by comprising: The case has a first hole,
The first stretchable portion includes a first end portion having a second hole portion,
The second stretchable portion includes a second end portion having a third hole portion,
The first elastic part and the second elastic part are connected to the case by a rod member inserted through the first hole part, the second hole part, and the third hole part. The body-mounted electronic device according to claim 7, wherein The second stretchable part is
A protrusion projecting in a direction intersecting the first surface at the one end;
The band body includes a recess at a position corresponding to the protrusion,
The body-mounted electronic device according to claim 7, wherein the protrusion is inserted into the recess.

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