JP2010220948A - Put-on device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein a put-on device does not fit to a put-on part because the shape and size of the put-on part of a user differ by individuals regarding the put-on device for measuring ecological information on the user, and a wrist watch with a watch body put on the wrist. <P>SOLUTION: The put-on device has a case body having a contact surface contacting the put-on part of a living body, and a band body provided facing the contact surface with the put-on part placed in between. The band body is a rigid member in which at least a facing surface facing the contact surface has rigidity. The case body and the band body are connected by an angle adjusting mechanism capable of adjusting an angle defined by the contact surface of the case body and the facing surface of the band body. The angle adjusting mechanism has a lock mechanism fixed at a predetermined angle. With this configuration, the put-on device fits the put-on part. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mounting device that is mounted on a mounting site such as a wrist, an ankle, or a neck. The present invention also relates to a mounting device equipped with a sensor for measuring biological information.

  2. Description of the Related Art Conventionally, in exercise training, as one of methods for realizing exercise training without excess or deficiency, a method of adjusting exercise amount using a heart rate calculated from exercise intensity as an exercise training index is known.

  In other words, the exercise intensity is an index indicating the intensity of exercise and the load on the body, and indicates the percentage of exercise with the maximum oxygen intake taken as 100%. When exercise training is performed using such exercise intensity, a target exercise intensity, which is the target exercise intensity, is set, and the target heart rate, which is the heart rate corresponding to the target exercise intensity, Is a way to manage.

  In such exercise intensity, the greater the value of exercise intensity, the greater the energy consumption, the greater the load on the body, the sugar accumulated in the liver and muscles as the energy source, and vice versa. Uses lipid as an energy source.

  In view of these, there is much debate about whether to use carbohydrates or lipids as energy sources, and proposals to apply this idea to improving physical strength, diet, prevention of lifestyle-related diseases, etc. Many.

  By the way, the value of exercise intensity is not specified by the exercise to be performed and its type, and even if the same exercise is performed, the value varies depending on the individual. Since energy consumption during exercise is roughly proportional to oxygen intake, it is necessary to measure oxygen intake during exercise. However, this requires a large-scale device and specialized knowledge, and it is generally difficult to know the numerical values.

  For this reason, in recent years, instead of measuring the amount of oxygen intake during exercise, it has been digitized based on the heart rate of the heart that is roughly proportional to the amount of oxygen intake, and it is possible to grasp the load on the body with the heart rate. It has been broken.

  You can measure your heart rate by placing your finger on the inside or neck of your wrist and feeling the skin vibrating with the heartbeat. When heart rate is set to be used as an exercise training index, there is a demand for measuring heart rate even during exercise or immediately after training. However, a heart rate monitor that can easily measure the heart rate has been demanded. In recent years, many electronic heart rate monitors have been proposed.

  As such an electronic heart rate monitor, generally an electrocardiogram detection method is widely known.For example, a belt-like pulse wave detection unit having an electrode for detecting a pulse wave is attached to a finger or a chest. Some display information is transmitted to a separate display unit by wire or wireless. The display unit obtains and displays the heart rate from the cycle of the pulse wave detected by the pulse wave detection unit attached to the arm or the like. Of course, there is also an integrated pulse wave detection unit and display unit.

In addition to the electrode type using such electrodes, the pulse wave detector uses an optical type that captures changes in blood flow with light, and a pressure that measures changes in blood pressure with pressure using an electrostatic pressure sensor. There are also formulas.
By the way, in such an electronic heart rate monitor, a wrist equipped with a pulse wave measurement sensor or the like for measuring a pulse wave so that the heart rate can be measured even during exercise or immediately after training. A wearable biometric device has been proposed (see, for example, Patent Document 1).

The prior art disclosed in Patent Document 1 will be described with reference to FIG.
In FIG. 13, 100 is a health care wristwatch, 102 is a wristwatch case, 108 is a wristwatch band, and 110 is a display device. Using the wristwatch band 108, the health management wristwatch 100 is attached to the wrist which is the measurement site. Although not shown in the drawings, a pulse wave measurement sensor and a body temperature measurement sensor are provided on the back surface of the watch case 102 (in the case of a normal wristwatch, on the back cover side), and the pulse wave, which is user's biological information, is provided. Measure heart rate and body temperature. Then, the information is displayed on the display device 110.

Moreover, the technique devised so that a sensor may closely_contact | adhere with respect to a mounting part is also proposed (for example, refer patent document 2).
The prior art disclosed in Patent Document 2 will be described with reference to FIG. In FIG. 14, 200 is a carotid artery wave detection device, 202 is a grasping device, 204 is a first arm, 206 is a hinge mechanism, 208 is a second arm, and 210 is a pulse wave detection probe.

  The prior art disclosed in Patent Document 2 is a device that detects a pulse wave of the carotid artery and is worn on the neck or the like. The carotid artery detection device 200 includes a gripping device 202 that is biased in the direction of diameter reduction by an elastic return force. The gripping device 202 includes a curved first arm 204 and a second arm 208 rotatably connected to the first arm 204 by a hinge mechanism 206. A plurality of pulse wave detection probes 210 are connected to one end portion of the first arm 204 so as to be slidable and swingable in the protruding direction.

  In addition, although it is not a wearing device that measures biological information by wearing it on the wrist or the like, a technique has been proposed in which the band structure or the connection structure with the band is devised so that the device main body is brought into close contact with the attachment site ( For example, refer to Patent Document 3, Patent Document 4, and Patent Document 5.)

The prior art disclosed in Patent Document 3 will be described with reference to FIG.
In FIG. 15, reference numeral 300 denotes a refraction type watch band, 301 denotes a band body, and 302a and 302b denote band end portions.
The prior art disclosed in Patent Document 3 is a watch in which a watch body and a band are connected with an angle. FIG. 15 is a plan view showing the band portion.
For example, the refraction-type watch band 300 is connected to a cane foot provided in the 12 o'clock direction of the watch main body (not shown) and a band end portion 302b is connected to a cane foot provided in the 6 o'clock direction. It becomes a ring shape. Then, a watch body (not shown) is attached to the wrist with the band 301. The band main body 301 has a refraction angle θ of 10 ° to 20 ° with the band end portions 302a and 302b. For this reason, the band main body 301 and the watch main body (not shown) are connected with an angle.

  With such a configuration, the band main body 301 can avoid the ulnar process. In a watch that is usually known, even if the watch body is mounted on the back side of the wrist or on the palm side, the band will come above the ulnar process, so the height of the bone A watch body (not shown) floats from the skin. However, in the prior art shown in Patent Document 3, the watch body does not float because the band body 301 avoids the ulnar process.

The prior art disclosed in Patent Document 4 will be described with reference to FIG.
In FIG. 16, 400 is a watch, 401 is a case, 402 is a band, 403 is a pin, 4
04 is a mounting bracket, and 404a is a hole provided in the mounting bracket 404.
The prior art disclosed in Patent Document 4 is a watch in which both are connected so that the angle between the watch body and the band can be changed. In the watch 400, pins 403 are provided at both ends of the case 401, and holes 404a are provided in the fittings 404 at both ends of the band 402, respectively. A hole 404a is fitted into the pin 403 to form a structure in which the case 401 and the band 402 are slidably connected in the plane of the case 401.
For this reason, the timepiece 400 has a structure in which the case 401 moves in accordance with the movement of the arm and is easily adhered to the wrist.

The prior art disclosed in Patent Document 5 will be described with reference to FIG.
In FIG. 17, 500 is a watch, 501 is a case, 502 is a band, 503 is a ball head joint, 504 is a pivot, and 505 is a sleeve.
The prior art shown in Patent Document 5 is a watch in which both are connected by a free joint structure so that the angle between the watch body and the band can be further changed. The watch 500 is provided with pivots 504 each having a ball head at both ends of the case 501. Sleeves 505 are provided at both ends of the band 502.

The band 502 is rotatably supported with respect to the case 501 by inserting the ball head of the pivot 504 into the sleeve 505. A connecting portion between the band 502 and the case 501 constitutes a ball head joint 503, which is a so-called free joint structure.
For this reason, the timepiece 500 is rotatable in the direction of the arrow m or the arrow n, and has a structure with a degree of freedom that the case 501 can easily adhere to the wrist.

JP-A-53-32765 (2nd page, Fig. 2) Japanese Patent Laid-Open No. 10-146322 (page 3, FIG. 1) Japanese Utility Model Publication No. 63-25014 (first page, FIG. 1) Japanese Utility Model Publication No. 63-167291 (page 3, FIG. 1) Japanese Utility Model Publication No. 62-5012 (page 6, FIG. 7)

  The prior art shown in Patent Documents 1 and 2 is a device having means for measuring the user's ecological information (pulse wave and body temperature), and in particular, the prior art shown in Patent Document 2 is applied to a wearing site. On the other hand, the sensor is devised so as to be in close contact.

  As shown in FIG. 13, the prior art disclosed in Patent Document 1 uses a wristwatch band 108, which is a conventional type of wristwatch, in this health management wristwatch 100, and thus the difference in the thickness of the wrist of the wearer. It is not possible to cope with.

  That is, when the wearer's wrist is thinner than the wristwatch band 108, the pulse wave measurement sensor and the body temperature measurement sensor arranged on the back side of the wrist of the watch case 102 are in close contact with the palm of the wrist. Therefore, accurate measurement by the sensor cannot be performed without being pressed with an appropriate pressing force. In this case, the wristwatch case 102 may be displaced during exercise, training, or the like, and the pulse wave measurement by the pulse wave measurement sensor cannot be performed.

In the prior art disclosed in Patent Document 2, as shown in FIG. 14, a plurality of pulse wave detection probes 210 can slide in the protruding direction and swing at one end portion of the first arm 204. In this case, the structure is complicated, the structure becomes large, the cost is high, and it can be applied to a relatively large diameter portion such as a neck. It is not suitable for application to a relatively small diameter portion of a living body such as an ankle and a finger.

  Further, in this case, since the plurality of pulse wave detection probes 210 that are slidable in the protruding direction and swingable are provided, the feeling of wearing is not good, and the shapes and sizes vary depending on individual differences. Depending on the mounting site, it is difficult for the pulse wave detection probe 210, which is a sensor part, to stably contact and press the part to be measured.

  On the other hand, the conventional techniques shown in Patent Documents 3 to 5 are not related to a device having means for measuring user's ecological information, but a technique related to a commonly known watch. It has been done.

  As shown in FIG. 15, in the prior art shown in Patent Document 3, since the band edge 301a is longer than the edge 301b, the band edge 301a side is lifted even if it is wound around the wrist, and the watch is Does not stick to wrist. Therefore, in this refraction type watch band 300, the ulnar process can be avoided, but the watch body does not adhere to the wrist.

  Further, as shown in FIG. 16, the prior art disclosed in Patent Document 4 is connected so that the angle between the watch body and the band can be changed. Since there is no mechanism for maintaining the angle with 402, the case 401 does not adhere to the wrist when the arm is moved even a little.

Similarly, the prior art shown in Patent Document 5 can rotate in the directions of arrows m and n as shown in FIG. 17, but there is no mechanism for maintaining the angle between the case 501 and the band 502. When the arm moves, the case 501 does not adhere to the wrist.
In the prior arts shown in Patent Document 4 and Patent Document 5, when both of the exercises such as swinging the arm, the watch case moves due to the acceleration applied, and the watch case hardly comes into close contact.

  As described above, even the mounting device for measuring the user's ecological information as in the prior arts shown in Patent Literatures 1 and 2 is similar to the prior art shown in Patent Literatures 3 to 5. Even in the case of a wristwatch having a mechanism for bringing the timepiece main body into close contact with the arm, what is common is that the sensor and the device main body (watch main body) are brought into close contact with an attachment site of a living body.

  As described above, the conventional techniques shown in Patent Documents 1 and 2 cannot stably attach the sensor to the measurement site, and the conventional band structures shown in Patent Documents 3 to 5 and the band are not included in these techniques. Even if the connection structure between the sensor and the main body is combined, the sensor cannot be brought into close contact with the site to be measured as described in the individual problems of the prior arts shown in Patent Documents 3 to 5.

  Therefore, it is desirable that the wearing device for measuring the user's ecological information and the wristwatch for bringing the watch body in close contact with the wrist have a structure that is in close contact with the living body and that does not easily deteriorate even when the living body moves. It is rare.

The object of the present invention is to solve such a demand. A mounting device that has a case body and a band body, and the case body does not float, even when it is mounted on a mounting site that varies in shape and size depending on individual differences. It is an object of the present invention to provide a mounting device that is in close contact with a region and is pressed with an appropriate pressing force and that does not shift its position during exercise or training. Of course, even if a sensor is mounted on the case body, the case body is in close contact with each other, so that it is possible to provide a mounting apparatus equipped with a biometric device capable of performing accurate measurement using the sensor.

  In order to achieve the above object, the mounting device of the present invention employs the configuration described below.

A case body having a contact surface that comes into contact with an attachment site of a living body and a band body including an opposing surface opposite to the contact surface, and the attachment site is sandwiched between the contact surface of the case body and the opposite surface of the band body A mounting device for mounting the case body on the mounting site,
The case body and the band body are coupled, and an angle variable mechanism that variably couples the angle formed between the contact surface of the case body and the opposing surface of the band body is provided. The band body extends from the angle variable mechanism to the opposing surface. The portion is formed of a rigid member having rigidity.

  In the mounting device having the above-described configuration, the mounting device may include a biasing unit that biases the contact surface of the case body and the rigid member of the band body in the direction of approaching.

  In the mounting device having the above-described configuration, the angle variable mechanism includes a lock mechanism that fixes an angle formed between the contact surface of the case body and the opposing surface of the band body at a predetermined angle. May be.

  Further, in the mounting device having the above-described configuration, the case body includes a sensor that measures biological information in contact with the contact surface, and the biological information is one of pulse, blood pressure, and sweating, or a combination thereof. Also good.

  In the mounting device having the above-described configuration, the case body includes display means for displaying the biological information, and the display means displays the biological information as one of pictures, characters, figures, or a combination thereof. You may make it do.

  According to the mounting device of the present invention, the case body and the band body are coupled by the angle variable mechanism that can change the angle formed by the contact surface of the case body and the opposing surface of the band body. It becomes possible to adhere to the part to be mounted. The variable angle mechanism includes a lock mechanism that fixes the angle formed by the contact surface of the case body and the opposing surface of the band body to a predetermined angle, and the case body is displaced even during exercise or training. Without any problem, it is possible to provide a mounting device with an excellent fit.

It is a perspective view which shows the external appearance of the mounting apparatus of this invention. It is a perspective view which shows the external appearance of the diagonal back side of the mounting apparatus of this invention of FIG. It is a fragmentary sectional view explaining an angle variable mechanism with a side view of a mounting device. It is a front view of the mounting apparatus of this invention, Comprising: It is a figure explaining the angle | corner which a case body and a band body make. It is a perspective view of the state where the mounting device of the present invention was mounted on the left wrist of a living body. It is a perspective view explaining a mode seen from arrow A of Drawing 5 concerning the present invention. It is a disassembled perspective view of the mounting apparatus of this invention. It is a partial section expansion perspective view of the angle variable mechanism of the mounting apparatus of the present invention. It is a perspective view of the state where the mounting device of the present invention was mounted on the left wrist of a living body. It is a chart explaining the quality determination of the detection level of the pulse of four subjects wearing the wearing device of the present invention, where the angle between the case body and the band body is 0 degree. It is a chart explaining the quality determination of the pulse detection level of four subjects wearing the wearing device of the present invention, and is the case where the angle formed by the case body and the band body is 13 degrees. It is a top view explaining the display of the display part of the mounting apparatus of this invention. It is a perspective view explaining the prior art shown in patent document 1, Comprising: It is a figure explaining the state with which the wrist mounting | wearing type biometric apparatus was mounted | worn with the left wrist. It is a side view explaining the prior art shown in patent document 2, Comprising: It is a figure explaining the structure of a carotid artery wave detection apparatus. It is a front view explaining the prior art shown in patent document 3, Comprising: It is a figure explaining the shape of the timepiece band. It is a front view explaining the prior art shown in patent document 4, Comprising: It is a figure explaining the attachment structure of the band and case of a wristwatch. It is sectional drawing explaining the prior art shown in patent document 5, Comprising: It is a figure explaining the attachment structure of the band and case of a wristwatch.

  An embodiment of a mounting device of the present invention will be described with reference to the drawings. In addition, about embodiment described below, the mounting | wearing part of a biological body is made into the wrist of a human body, and the mounting apparatus of this invention demonstrates by the example mounted | worn to this wrist. The mounting apparatus will be described using an example in which a sensor that measures biological information is provided on a contact surface of a case body with a living body.

  1 to 4 are drawings for explaining the configuration of the mounting apparatus of the present invention. FIG. 1 is a perspective view showing an external appearance of the mounting apparatus, FIG. 2 is a perspective view showing an external appearance of the mounting apparatus obliquely behind FIG. 1, and FIG. 3 is a partial cross-sectional view illustrating the angle variable mechanism in a side view of the mounting apparatus. . FIG. 4 is a diagram illustrating a state of the front surface portion of the mounting device, and is a diagram illustrating the operation of the angle variable mechanism.

[Description of Overall Configuration: FIGS. 1 to 6]
The overall configuration of the mounting apparatus of the present invention will be described with reference to FIGS. In addition, in each figure, the same number is attached | subjected to the same structural member, and the overlapping description is abbreviate | omitted.

As shown in FIG. 1 and FIG. 2, the mounting device 10 is formed of a case body 1 and a band body 20 that is connected to the case body 1 and sandwiches a part to be attached to a living body.
The case body 1 is provided with a display unit 8 on the front surface side, and a sensor 5 is disposed on the rear surface side thereof. The sensor 5 has a sensor contact surface 51 that comes into contact with the mounted part.
The band body 20 includes a first band 2 and a second band 6. The first band 2 includes a hinge portion 3 that urges the case body 1 and the band body 20 toward the attachment portion of the living body, a case body 1, and a connection portion between the front surface portion 11 and the second band 2 of the case body 1. An angle variable mechanism that varies the angle between the band body 20 (specifically, the angle between the sensor contact surface 51 and the facing surface 23 as shown in FIG. 4) is formed. On the side surface of the front surface portion 11 of the case body 1, there is provided a hinge relief portion 11c when the angle is variable.

The structure of the hinge portion 3 and the angle variable mechanism will be described in detail later with reference to FIGS. Here, the function will be briefly described.
The hinge portion 3 includes an urging means capable of rotating about its axis (XX axis). By this urging means, the sensor contact surface 51 serving as a contact surface with the living body of the case body 1 and the opposing surface 23 of the first band 2 constituting the band 20 are urged in a direction approaching.
Between the case body 1 and the hinge part 3, an angle variable mechanism capable of rotating around the axis (Y-Y axis) of the fixing knob 4 is provided. The angle of the case body 1 and the band body 20 can be changed by the angle variable mechanism, and the angle can be fixed by the fixing knob 4.

The display unit 8 displays biological information (for example, a pulse wave) based on a result measured by the sensor 5 (for example, a pulse wave).
Heart rate). The display unit 8 can display the biological information as any one of a picture, a character, and a graphic, or a combination thereof. Details of this display will be described later with reference to FIG.
The case body 1 is also equipped with a control means for controlling the measurement of the sensor 5 and a signal processing means for calculating the measurement result. In addition, the case body 1 has functions such as a time measuring function and a communication function (for example, a mobile phone function). You may have it.

  In the band body 20, the first band 2 and the second band 6 are fixed by the band connection portion 7. The first band 2 of the band body 20 is configured by a rigid member having rigidity. The facing surface 23 with the case body 1 which is a part of the first band 2 is also formed of a rigid member.

The second band 6 is made of a flexible member. The second band 6 is provided with a hook-and-loop fastener 63 at the end on the case 1 side, folded back so as to wind the locking shaft 15 provided in the case body 1, and fixed with the hook-and-loop fastener 63 at the folded-back portion 64. It is like that.
Thus, since the case body 1 and the band body 20 are ring-shaped, the wrist which is a mounting | wearing site | part is passed through the inner side, and the mounting apparatus 10 is fixed.

[Outline of hinge part and variable angle mechanism: FIGS. 2 and 3]
2 and 3 show the appearance of the angle with the hinge portion 3. The front surface portion 11 of the case body 1 is provided with two cut portions 11d from the back surface 11b toward the front surface 11a. As shown in FIG. 2, the two cut portions 11d do not reach the surface 11a and are shaped like a U-shape when viewed in plan, and the hinge clamp portion 14 is configured. Yes.
When the hinge clamp portion 14 is connected to the hinge connecting portion 34, the case body 1 and the band body 20 are connected at the hinge portion 3.

[Overview of biasing means]
The mounting device 10 needs to be fitted to the mounting site. Further, when the sensor 5 is mounted on the case body 1, it is necessary to bring the sensor 5 into close contact with the part to be measured. For this reason, the hinge part 3 is provided with the urging means which urges | biases the 1st band 2 so that the direction of the case body 1 may be approached.

  When the first band body 2 is a soft member, the urging force by the hinge portion 3 cannot be sufficiently exhibited, and a fit cannot be obtained when the mounting device 10 is mounted. Further, when the sensor 5 of the case body 1 is mounted, the sensor 5 cannot be in close contact with the measurement site (that is, the skin).

[Outline of variable angle mechanism]
The angle variable mechanism is configured by sandwiching the hinge connecting portion 34 and the hinge clamp portion 14 connected to the hinge portion 3 using the fixing knob 4 and the nut 41.
That is, the hinge connecting portion 34 is fitted into the cut portion 11 d, and the fixing knob 4 passes through the front surface portion 11, the hinge connecting portion 34, and the hinge clamp portion 14 of the case body 1, and enters the hinge clamp portion 14. The nut 41 accommodated in the provided hexagonal recess is screwed.

  Since it is such a structure, the case body 1 and the band body 20 can be rotated by using the fixing knob 4 as an axis (Y-Y axis). This will be described later with reference to FIG. This rotation range can be inclined until the hinge escape portion 11c provided on the front surface portion 11 and the hinge portion 3 come into contact with each other. In that case, the fixing knob 4 may be loosened and the case body 1 and the band body 20 may be inclined at a predetermined angle, and then the fixing knob 4 may be tightened and fixed again. That is, the locking knob 4 and the nut 41 constitute a lock mechanism.

  As shown in FIGS. 2 and 3, the case body 1 is provided with a sensor 5. The sensor contact surface 51 is in contact with the contact surface of the human body (in this case, the skin of the wrist) to measure biological information. be able to. The sensor 5 is not particularly limited, but a contact pressure sensor can be used. The heart rate can be known by detecting, as a pulse wave, a vibration synchronized with the heartbeat transmitted to the human skin. The heart rate is generally represented by the number of pulses per minute. For example, if the peak of the pulse wave is detected as the number of pulses for 10 seconds and the result is multiplied by 6, the heart rate can be easily obtained. I can.

[Operation of the variable angle mechanism: FIG. 4]
The angle formed between the sensor contact surface 51 that is the contact surface of the case body 1 and the facing surface 23 that is the facing surface of the band body 20 to the case body 1 by the angle varying mechanism between the case body 1 and the band body 20 is Can be variable. This will be described with reference to FIG.
FIG. 4 is a view of the mounting device 10 in a direction in which the fixing knob 4 is viewed from the front. FIG. 4A shows an example in which the case body 1 is inclined in the M direction by an angle α1. FIG. 4B is an example in which the case body 1 is inclined by an angle α2 in the N direction. In FIG. 4, the sensor 5 and the sensor contact surface 51 are not visible, and are shown by dotted lines.

The case body 1 has an arrow centered on the axis of the fixing knob 4 with respect to the opposing surface 23 of the band body 20 parallel to the XX axis of the rotation axis of the hinge portion 3 as shown in FIGS. By rotating in the M direction and the N direction, it can be inclined by any angle (α1, α2).
The angles (α1, α2) are angles formed between the contact surface of the case body 1 with the human body (the sensor contact surface 51 of the sensor 5) and the facing surface 23 of the band body 20.
As already described, since the case body 1 and the band body 20 can be tilted until the hinge relief portion 11c provided on the front surface portion 11 and the hinge portion 3 come into contact with each other, the angles (α1, α2) are You may determine by the distance until the hinge escape part 11c and the hinge part 3 contact | abut. The angle α1 and the angle α2 may be the same angle, and are not particularly limited, but are about 13 to 15 degrees.

  This is the characteristic part of the present invention. Since the case body 1 and the band body 20 can be set to arbitrary angles (α1, α2), when the mounting device 10 is mounted on the mounting site, the case body 1 is not inclined even if the mounting site is inclined. It can be in close contact with the part to be mounted.

  Further, when the mounting device 10 is equipped with the sensor 5 as shown in the drawing, it is not preferable that the sensor 5 and the measurement site of the living body (that is, the skin surface) are in contact with each other at an angle. This is because when the sensor 5 detects a contact pressure, information cannot be accurately measured if the sensor 5 floats. Even in such a case, since the case body 1 and the band body 20 are inclined by the angles (α1, α2), the sensor contact surface 51 of the sensor 5 does not float with respect to the measurement site of the living body. There is always no right contact.

  Of course, the case body 1 and the band body 20 may be inclined in only one direction of the M direction or the N direction. However, when the attachment site is a wrist of a human body, Since the tilting direction differs depending on whether it is the left wrist or the right wrist, it is preferable to tilt freely in both the M direction and the N direction.

[Explanation about angle regulation of variable angle mechanism]
When the mounting device 10 of the present invention is applied to a device without a sensor such as a wristwatch, for example, it is not necessary to provide the fixing knob 4 for tightening. In this case, after wearing the wearing device 10 on the wrist and performing daily life and exercise, the surface of the human body is subject to skin expansion and contraction, muscles and bones, depending on the swing of the arm and the bending angle of the wrist. Raising occurs. In such a case, the case body 1 and the band body 20 are inclined by the angle α1 or the angle α2 according to the movement of the human body, so that the mounting device 10 can always fit the human body regardless of the movement of the human body. it can.

  However, when the sensor 5 is mounted on the mounting device 10, the angle variable mechanism that changes the angle (α1, α2) between the case body 1 and the band body 20 can be freely adjusted according to the movement of the human body. It is necessary to regulate that it is variable.

That is, if the case body 1 moves freely with respect to the band body 20, even if the first band 2 is urged in the direction of the case body 1 by the hinge portion 3, the force escapes and the sensor 5 This is because the current is not correctly urged to the measurement site.
For this reason, after the angle (α1, α2) between the case body 1 and the band body 20 is determined in accordance with the surface state of the measurement site, the fixing knob 4 constituting the angle variable mechanism is tightened, and the angle is Fix it so that it doesn't change.

  Since the surface state of the measurement site varies depending on the person who wears the mounting apparatus 10, the angles (α1, α2) are naturally different. Therefore, it is only necessary to mount the mounting device 10 and select suitable angles (α1, α2) while changing the angle between the case body 1 and the band body 20.

[Explanation of wearing device: FIGS. 5 and 6]
Next, how the mounting apparatus 10 is mounted will be described with reference to FIGS.
FIG. 5 is a perspective view showing a state from the palm side where the attachment device 10 is attached to the wrist which is the attachment site, and FIG. 6 is a view seen from the direction of the arrow A shown in FIG. It is the perspective view which looked at the side of the thumb side. The sensor 5 is indicated by a dotted line.

  As shown in FIG. 5, the mounting device 10 is mounted so that the back side (the surface in the case where the sensor 5 is provided) is in contact with the palm side of the wrist. The wearer can see the display unit 8 from the front by looking at the palm side of the wrist. If the mounting device 10 is a wristwatch, information such as time can be read, and when the sensor 5 is mounted on the mounting device 10, information based on the measurement result of the sensor 5 can be read.

As shown in FIG. 6, the case body 1 and the band body 20 constituting the mounting device 10 are inclined at an angle α2. The facing surface 23 of the first band 2 of the band body 20 is in close contact with the skin on the back side of the wrist. The sensor contact surface 51 of the sensor 5 is in close contact with the skin on the palm side of the wrist.
The angle α2 is the same as the angle shown in FIG. As shown in FIG. 6, it corresponds to an angle when the thickness of the arm changes from the wrist to the elbow. In other words, if the part to be worn is a part like a wrist of a human body, the surface has almost no flat part due to muscles, bones, muscles, etc., and the skin surface is inclined. The mounting apparatus 10 can adhere and fix the case body 1 even if there is such an inclination of the skin surface.

In the above description, an example of mounting on the left wrist of a human body has been shown, but the mounting apparatus of the present invention may be mounted on the right wrist. In that case, the angle between the case body 1 and the band body 20 is an angle α1. Refer to FIG. 4A for the state.
Even in such a case, the mounting device of the present invention can change the angle α1 or the angle α2 as appropriate, and can fix the angle so as to maintain the angle thereafter. ) Can be in close contact with the wearing site.

[Explanation of sensor: FIGS. 2 and 3]
Next, the sensor 5 will be described.
As shown in FIGS. 2 and 3, the inner side, which is the back surface of the case body 1, has a curved shape along the outer shape of the wrist, which is a wearing part of the living body, and faces the radial artery of the wrist. The sensor 5 is provided on the portion so as to protrude slightly, and has a sensor contact surface 51.

  Since the case body 1 is inclined at an angle α1 or an angle α2 with respect to the facing surface 23 of the band body 20 in accordance with the shape of the wrist that is the attachment site, the sensor contact surface 51 of the sensor 5 becomes a living radial artery. Attached along. As described above, for example, a contact pressure sensor can be used as the sensor 5. Therefore, it is important that the sensor contact surface 51 is in close contact with the skin of the wrist serving as a measurement site. Then, biological information such as a pulse wave can be obtained from the sensor 5.

  As the sensor 5, for example, a capacitance detection type contact pressure sensor can be used. Such sensors are known in which the distance between electrodes facing each other changes due to vibrations (pulse waves) of a measurement site of a living body, thereby detecting a change in capacitance.

  Information on the living body from the wrist measured by the sensor 5 is subjected to various arithmetic processes by an arithmetic processing device (not shown) provided in the case body 1 and displayed on the display unit 8.

The sensor 5 is not limited to the contact pressure sensor that measures the pulse wave exemplified above.
The sensor 5 may be a temperature sensor for measuring body temperature, a sweat sensor for measuring the degree of sweat, or a sensor group of a combination thereof. This configuration is extremely convenient because it can cope with pulse wave measurement, body temperature measurement, and sweating degree measurement.

  In order to measure the degree of sweating, a humidity sensor is used, although not particularly limited. As the humidity sensor, a polymer type, metal oxide type or the like is known. For example, a polymer-based sensor measures the relative humidity around the sensor from the change in dielectric constant associated with the absorption and release of moisture in the polymer film. These humidity sensors are well known as so-called capacitor types, in which a polymer film is sandwiched between parallel plate electrodes of a capacitor, and the capacitance changes according to the amount of moisture absorbed. is there.

  Further, a skin resistance sensor may be used for the degree of sweating. Although the skin resistance sensor is not particularly limited, the resistance of the skin is measured by applying two independent electrodes to the skin and passing a weak current between the electrodes. When the skin resistance sensor is used, not only the degree of sweating of the wearer but also the movement of the skin can be detected.

  In order to measure temperature, although it does not specifically limit, a temperature sensor is used. As the temperature sensor, a contact type or a non-contact type is known. The former is a thermistor or thermocouple, and the latter is a thermopile (infrared sensor). The thermistor is a resistance temperature sensor using the temperature characteristics of a semiconductor, and the thermopile receives infrared rays emitted from an object and generates a thermoelectromotive force according to the amount of energy.

[Detailed Description of Angle Variable Mechanism and Hinge Biasing Means: FIGS. 3, 7, and 8]
Next, the configuration of the variable angle mechanism and the three biasing means of the hinge portion will be described in detail with reference to FIGS. 3, 7, and 8.
FIG. 7 is an exploded perspective view of the mounting device, and FIG. 8 is an enlarged partial sectional perspective view of the angle variable mechanism of the mounting device.

In FIG. 7, 12 is a rear end of the case body 1, 13 is a through hole, 21 is a hinge side end of the first band 2, 22 is a second band side end, and 24 is an opening provided in the first band 2. It is. Similarly, 31 is a hole in the hinge connecting portion, 32a and 32b are cover portions, and 33 is a rack provided in the hinge connecting portion. 61 is a branching portion of the second band 6, 62 is a coupling portion of the second band 6, 65 is a folded end portion, and 7 is a band connecting portion 7, which includes a first connecting member 71 and a second connecting member 72. . Reference numeral 321 denotes a fixed cam housed and fixed in the hinge side end portion 21, 322 a movable cam, and 323 a biasing spring.

  In FIG. 8, a guide pin hole 16 and a guide rectangular hole 16 are formed on the back surface 11 b of the front surface portion 11. Reference numeral 421 denotes a tip of the claw, 422 denotes a guide pin of the claw, and 423 denotes a rotation stopper of the claw, which are accommodated in the guide pin hole 16 and the rectangular hole 17.

[Explanation of variable angle mechanism]
First, the angle variable mechanism of the case body 1 and the hinge part 3 will be described in detail.
The variable angle mechanism is composed of a plurality of members. The fixing knob 4 passes through the through hole 13 of the case body 1 and the hole 31 of the hinge connecting portion 34 of the hinge part 3, and the case body 1 is connected to the hinge part 3 around the axis of the fixing knob 4 (Y-Y axis). It is formed to be rotatable.
The rack 33 formed on the circumference around the hole 31 of the hinge connecting portion 34, the claw 42, the leaf spring 43, and the claw 42 inside the front surface portion 11 of the case body 1 and the guide of the leaf spring 43. It also has a mechanism. The guide mechanism includes a guide pin hole 16, a guide rectangular hole 17, a claw tip 421, a claw guide pin 422, and a claw detent 423.

  As shown in FIG. 8, the rack 33 formed on the circumference of the hinge connecting portion 34 is formed in the shape of an isosceles triangular tooth whose tip is approximately 90 degrees. Similarly, the claw 42 has a claw tip 421 having a shape of an isosceles triangle whose tip is substantially 90 degrees, a claw guide pin 422 fitted in the guide pin hole 16 of the case body 1, and a guide for the case body 1. A claw detent 423 that abuts the rectangular hole 17 is formed. The leaf spring 43 is located between the claw 42 and the guide rectangular hole 17 and works so as to urge the claw 42 to the rack 33 and engage with it.

That is, the angle variable mechanism can temporarily fix the ratchet by engaging the claw 42 and the rack 33 when the fixing knob 4 is loosened and the case body 1 is tilted, and a ratchet function having a click feeling is also formed.
With this configuration, the angle variable mechanism can maintain the inclination of the case body 1 by the ratchet function even when the fixing knob 4 is loosened.

  When changing the tilt, the case body 1 can be rotated with a click feeling, and the case body 1 can be fixed at an arbitrary angle by tightening the fixing knob 4. It is easy to adjust the angle.

[Explanation of biasing means of hinge part]
Next, the urging means for urging the first band 2 in a direction to approach the case body 1 will be described in detail.

As shown in FIG. 7, the hinge connecting portion 34 and the two cover portions 32a and 32b are integrally formed, and the hinge side end portion 21 of the first band 2 is fitted between the cover portion 32a and the cover portion 32b. It is supposed to be.
Inside the cover portions 32a and 32b, a movable cam 322 and an urging spring 323 connected to the movable cam 322 are incorporated. The first band 2 has a through-hole in the hinge-side end 21, and a pair of fixed cams 321 are incorporated therein.
The movable cam 322 has a movable cam contact surface 322a, and the fixed cam 321 also has a fixed cam contact surface 321a. The urging spring 323 and the fixed cam 321 connected to the movable cam 322 are configured such that the movable cam contact surface 322a and the fixed cam contact surface 321a mesh with each other. The urging means is configured in this way.
Therefore, a rotational force is generated around the XX axis by the meshing of the inclined surfaces of the movable cam 322 and the fixed cam 321 and the pressing force by the biasing spring 323, and the first band 2 is biased in the direction of the case body 1. be able to.

  By providing such an urging means, the first band 2 can be pressed against the case body 1 even at a mounted part having a different shape and size depending on individual differences, and a high fit can be obtained. . Further, since the first band 2 is always urged in the direction of the case body 1 even during exercise, the case body 1 will not be in a state of being lifted from the wearing site, and the mounting device can be used from the wearing site. The uncomfortable feeling that 10 shifts is also eliminated.

When the sensor 5 for measuring pulse waves or the like is mounted on the mounting apparatus 10, the contact surface 51 can be brought into close contact with the measurement site (that is, the skin) by the urging force of the urging means. Although the magnitude of the pressing force for pressing the sensor 5 against the measurement site varies depending on the structure of the sensor constituting the sensor 5, the sensor contact surface 51 does not float when pressed with a constant pressing force as a whole. Therefore, it is preferable.
Since a constant pressing force can be generated by the urging means, the mounting apparatus 10 performs accurate measurement by the sensor 5 even in a state other than the state where the wearer is stationary (for example, during training). Can do.

  The configuration of the urging means described above is an example, and is not limited to this. As the hinge structure provided with the urging means, for example, a hinge structure as disclosed in JP-A-10-153214 and JP-A-10-252739 can be employed. The structure described in the publication is available from, for example, Strawberry Corporation.

[Description of Configuration of First Band 2: FIGS. 3 and 7]
Next, the first band 2 will be described in detail with reference to FIGS.
As shown in FIG. 7, the first band 2 has a thick hinge-side end portion 21, and two (two) parallel band portions extend from both sides of the hinge-side end portion 21. In this shape, the thickness is reduced toward the second band side end 22. The first band 2 is composed of a rigid member. A facing surface 23 that faces the sensor 5 of the case body 1 is formed at the second band side end 22.

The first band 2 in which two (two) parallel band portions are extended is formed with a substantially rectangular opening 24, thereby preventing stuffiness when worn on the wrist. At the same time, the weight can be reduced. And it is comprised so that the 1st band 2 may not be in the state which floated by the ulna process by avoiding an ulna process in the opening part 24. FIG.
By having the opening 24, positioning can be performed so that the ulnar procession is located in the opening 24 when being worn on the wrist. That is, the opening 24 can also function as a positioning means.

  For example, when measuring a pulse wave with a wrist of a human body, the wrist has a position suitable for pulse wave measurement. For example, the position on the palm side of the wrist is slightly closer to the elbow side from the base of the thumb. Although this position varies somewhat depending on the individual, it must be an abstract expression, but if it is measured using a considerable number of subjects, the approximate position can be known. The shape of the case body 1 and the curved shape of the first band 2 are determined so that the sensor 5 comes into contact with a position suitable for pulse wave measurement that is known by doing so.

For example, polyurethane resin, polyvinyl chloride resin, polyolefin resin such as polyethylene resin or polypropylene resin, silicon resin, polyamide resin, polycarbonate are used for the first band 2 to fit the shape of the wrist and improve the feeling of wearing. Adopting flexible members with elasticity such as resin, various synthetic resins such as polytetrafluoroethylene resin (fluorine resin), various elastomers such as nitrile elastomer, urethane rubber, fluorine rubber, NBR, acrylic rubber Is desirable.

  In this way, instead of configuring the first band 2 from a flexible member having an elastic force, an elastic member such as a leaf spring may be interposed inside the first band 2. The same effect can also be obtained by adopting a shape memory alloy such as Ti—Ni.

  Thus, even when the first band 2 is formed of a flexible member having elasticity, when the mounting device 10 is mounted on the wrist, the second band side end portion 22 of the first band 2 and What is necessary is just to spread out against the urging | biasing force of the inner direction to the direction where the open ends between the rear-end parts 12 between the case bodies 1 approach, and it can mount | wear to a wrist easily.

  And in the state which mounted | wore the mounting apparatus 10 on the wrist, the open end part between the opposing surface 23 of the 2nd band side edge part 22 of the 1st band 2 and the rear-end part 12 of the case body 1 approaches. To be urged inward again, so that the mounting state of the mounting device 10 on the wrist can be stably maintained, and the mounting device 10 can be effectively prevented from rotating and falling off around the wrist. Can do.

  Moreover, since the hinge part 3 can rotate the 1st band 2 to the periphery of XX with respect to the case body 1, in the state which has not penetrated the 2nd band 6 to the latching shaft 15, If it exists, since it becomes the structure which open | released the ulna side or the radius side of a wrist, the mounting | wearing apparatus 10 can be attached or detached to a wrist by what is called one touch.

[Description of Configuration of Second Band 6: FIGS. 3 and 7]
Next, the second band 6 will be described in detail with reference to FIGS.
In the mounting device 10, the second band 6 is connected between the two (two) parallel second band side end portions 22 of the first band 2 and the rear end portion 12 of the case body 1. The living body is configured to tighten the measurement site.

  The second band 6 and the first band 2 are respectively connected to the second joining member 72 provided in the bifurcated branching portion 61 and the two branched second band side end portions 22 of the first band 2. The band body 20 (see FIGS. 1 and 2) is formed by coupling with the provided first joining member 71.

  The coupling portion 62 of the second band 6 has a band shape and is folded at the folded end 65. In the second band 6, a locking shaft 15 provided at the rear end portion 12 of the case body 1 is inserted into the folded end portion 65, and is locked by a hook-and-loop fastener 63. The end of the second band 6 is a folded portion 64.

  As already described, the mounting device 10 is mounted by pushing and spreading it against the urging force of the first band 2, but the second band 6 forms a loop shape between the band body 20 and the case body 1. It can be attached to the attachment site. At this time, the second band 6 serves as an auxiliary band, and the fastening to the attachment site can be changed by removing the hook-and-loop fastener 63 and changing the position.

  With this configuration, the second band 6 can tighten the second band side end portion 22 of the first band 2 and the rear end portion 12 of the case body 1, so that the mounting device 10 is attached to the wrist. When attached, the attachment state of the attachment device 10 to the wrist can be stably maintained, and the attachment device 10 can be effectively prevented from rotating and falling off around the wrist.

  In addition, the second band 6 can tighten the second band side end portion 22 of the first band 2 and the rear end portion 12 of the case body 1, so that the detection surface of the sensor 5 can be appropriately pushed toward the wrist side. It can be pressed with pressure, whereby accurate biological information can be measured by the sensor 5.

  The second band 6 is not particularly limited, but may be constituted by an elastic member such as rubber or a spring, for example. Thus, if the 2nd band 6 is comprised with an elastic member, the 2nd band side edge part 22 of the 1st band 2 and the rear-end part 12 of the case body 1 can be fastened with the elastic force of this elastic member. .

  Further, the second band 6 can be formed integrally with the two second band side end portions 22 of the first band 2, but the second band 6 is formed by two second bands of the first band 2. It can also be configured to be detachable with respect to the band side end portion 22.

  In this case, the design variation can be expanded by combining the colors of the second band 6 and the like, and even when the second band 6 is damaged or damaged, the band member of the part can be replaced, which is convenient. It is.

  In addition to the structure using the hook-and-loop fastener 63, the second band 6 can also be, for example, a middle clip member used for a known watch band, and is particularly limited. is not.

Since the case body 1 and the band body 20 have angles (α1, α2) by the angle variable mechanism, it is desirable that the second band 6 is configured not to restrict it when these angles are formed.
For example, the second band 6 is made of a stretchable member. Further, the locking shaft 15 and its mounting hole may be devised. That is, the locking shaft 15 may be curved according to the angles (α1, α2), and the locking shaft 15 is provided with an elliptical mounting hole in the rear end portion 12 of the case body 1 so that the locking shaft 15 may be inclined.
Of course, these configurations are examples, but in this way, even if there is an angle (α1, α2) between the case body 1 and the band body 20, the inclination of the second band 6 is restricted. There is no end to it.

[Description of Detection Level Characteristics: FIGS. 9 to 11]
Next, the characteristics of the detection level by the sensor 5 when the case body 1 is tilted by the angle variable mechanism provided in the mounting apparatus 10 will be described mainly with reference to FIGS.
FIGS. 9 to 11 are diagrams for explaining the output level situation detected by the sensor 5 when the mounting device 10 of the present invention is mounted on the left wrist of a living body, the case body 1 is tilted to a predetermined angle by the angle variable mechanism. . FIG. 9 is a perspective view of a state in which the mounting device 10 is mounted on the left wrist of a living body, and FIGS. 10 and 11 are diagrams for explaining whether the output level is good or bad when the pulses of four subjects are detected by the sensor 5. is there.

In FIG. 9, the sensor 5 mounted on the mounting device 10 mounted on the left wrist of the living body is indicated by a dotted line. This is because the sensor 5 protrudes from the inside of the case body 1.
In FIG. 9, reference numeral 50 denotes a sensor element group constituting the sensor 5, which is a matrix type sensor array.
The sensor array 50 is, for example, a 6 × 7 matrix type, and is composed of a total of 42 sensor elements in which six sensor elements are arranged in the wrist length direction and seven sensor elements are arranged in the wrist width direction. . As shown in FIG. 9, numbers 1 to 42 are assigned to the sensor elements for convenience.

As such a matrix type sensor array, a contact pressure sensor for detecting a contact pressure is known, and as the sensor element, a piezoelectric detection element, a resistance detection element, an electrostatic detection element, and the like are known. It has been.
A pulse wave of a human body is measured using such a sensor element. The heart rate is measured from the measured pulse wave by means (not shown) built in the case body 1, and the result is displayed on the display unit 8.

As shown in FIG. 9, the sensor array 50 is composed of 42 sensor elements in total, and although not shown, a pulse wave can be measured for each sensor element.
The pulse wave appears on the skin of the human body as vibration of blood vessels stretched and contracted by the heartbeat. The pulse wave measurement detects it. Since the vibration that appears on the skin is spread over a certain area, using a matrix type sensor array can measure the vibration of the entire predetermined skin area, thus failing to detect the pulse wave. Less is. It is also convenient to check which sensor element is measuring the pulse wave.

The sensor 5 of the mounting device 10 is on the measurement site side of the case body 1 and is in contact with a position along the radial artery of the wrist. Since the display part 8 exists in the surface side of the case body 1, it can be visually observed by the user.
In the example shown in FIG. 9, the mounting device 10 is mounted on the left wrist of a living body. See FIG. 6 for a view from the side of the wrist. As shown in FIG. 6, the angle formed by the case body 1 and the band body 20 is α2.

  The charts shown in FIG. 10 and FIG. 11 are for explaining the state when the resting pulse of four subjects 1 to 4 by the sensor 5 is detected by the sensor 5, and the 42 sensors of the sensor array 50 shown in FIG. It shows whether the output level of each sensor element is good or bad. A state when the mounting apparatus 10 is mounted five times for each subject and pulse waves are detected is schematically shown.

  The chart of FIG. 10 shows pass / fail judgment when the angles (α1, α2) formed by the case body 1 and the band body 20 are 0 degrees, that is, when the case body 1 is not tilted. The chart of FIG. 11 shows the pass / fail judgment when the angle formed by the case body 1 and the band body 20 is α2 and is 13 degrees. Since the mounting device 10 is mounted on the left wrist of the human body as shown in FIG. 9, the angle formed between the case body 1 and the band body 20 in FIG. Become.

  Pulse wave detection signals from the 42 sensor elements constituting the sensor array 50 can be obtained as electrical signals. If the sensor 5 is a contact pressure sensor, the sensor element is, for example, an electrostatic detection element having parallel plate electrodes such as capacitors. The electrostatic detection element can detect the amount of change in capacitance as a pulse wave by changing the distance between the electrodes due to skin vibration caused by the pulse wave and changing the capacitance.

That is, the electrostatic detection element detects a physical quantity called skin vibration by converting it into an electrical signal called capacitance change. For this reason, the electrical signal obtained from each sensor element is an analog signal. When the electric signal from the sensor array 50 having such a configuration is processed as a sensor output, the output level of each sensor obtained from each sensor element is compared with a predetermined threshold value to select whether it is a pulse wave or not. To do.
Note that the operation of a signal processing circuit (not shown) built in the case body 1 that performs these processes and the explanation of the electrical signals from the sensor elements are already known techniques, and are therefore omitted.

10 and 11, the electrical signal selected as the pulse wave from each sensor element of the sensor array 50 is marked with ◯ when an electrical signal with a detectable output level is detected, and an undetectable output level. These electric signals are indicated by a cross on the sensor array 50.
By comparing the charts of FIG. 10 and FIG. 11, it is possible to know the change in sensor output due to the difference in angle between the case body 1 and the band body 20.

  According to the chart of FIG. 10 showing when the angle formed by the case body 1 and the band body 20 is 0 degree, in the subject 1, the sensor elements 11, 12, 17, 18 are used in the first measurement. No. 23, No. 24, No. 29, and No. 30 indicate that a pulse wave is detected. The second measurement is the same result as the first measurement. The third time shows that sensor elements No. 12, No. 17, No. 18, No. 23, No. 24, and No. 30 detect pulse waves. The fourth time indicates that sensor elements No. 5, No. 11, No. 12, No. 17, No. 18, No. 23, No. 24, No. 30 detect pulse waves. The fifth time indicates that the sensor elements 11, 17, 18, 23, 24, 29, and 30 detect the pulse wave.

  In the subject 1 shown in the chart of FIG. 10, many pulse waves are detected from the right sensor element toward the sensor array 50. That is, the pulse wave is detected by the sensor element on the side of the wrist close to the palm. The same applies to the other subjects 2 to 4.

  As already explained, pulse waves are transmitted to the skin surface by vibrations of blood vessels. In the example shown in FIG. 9, a blood vessel for detecting a pulse wave is a radial artery, and the sensor 5 is located above the radial artery. The radial artery extends in the length direction of the arm, and a pulse wave appears along the blood vessel. In addition, since the vibration of blood vessels is thought to spread radially on the skin surface, it appears with a slight width in the width direction of the arm. In the sensor array 50, the radial artery is located below the sensor elements 13 to 18, 19 to 24, and 25 to 30. Ideally, all of the sensor elements in these rows should detect pulse waves.

  However, as shown in the chart of FIG. 10, the detection location of the pulse wave is not along the radial artery in the lower part of the predetermined row of the sensor array 50. This shows a state in which the sensor 5 is in contact with the wrist. That is, the left side of the sensor array 50 is floating from the skin or the contact is weak.

  As described above, theoretically, if the pulse wave is detected by any one of the 42 sensor elements constituting the sensor array 50, the heart rate can be calculated. However, it is difficult to know whether the pulse wave is correct or not only by information from one sensor element. Therefore, in practice, a correct heart rate is calculated by comparing pulse waves obtained from a plurality of sensor elements. That is, it is preferable that as many sensor elements as possible among the sensor elements constituting the sensor array 50 detect the pulse wave.

  Further, if the number of sensor elements that correctly detect the pulse wave is small or is biased in the sensor array 50 as shown in the chart of FIG. 10, the subject may be at rest, If the arm or wrist is moved even a little during the measurement, the sensor 5 and the measurement site are displaced, and the heart rate measurement becomes unstable or the measurement itself cannot be performed.

  In such a situation, it is better that there are more sensor elements that can correctly detect the pulse wave. However, when the angle formed by the case body 1 and the band body 20 is 0 degree, the sensor is measured with respect to the measurement site. 5 hits one side, and the number of sensor elements that can be detected decreases. For this reason, the arm and wrist cannot be moved during the time related to the measurement of the pulse wave. Of course, even if the subject tries to measure the heart rate during exercise or sports, this cannot be done.

On the other hand, according to the chart of FIG. 11 showing the case where the angle α2 formed by the case body 1 and the band body 20 is 13 degrees, in the subject 1, the sensor elements 11, 12, Numbers 15 to 18, 20 to 24, 26 to 30, 34, and 35 indicate that pulse waves are detected. The second measurement shows that sensor elements No. 17, No. 21 to No. 24, No. 27 to No. 30, and No. 34 to No. 36 detect pulse waves. The third time indicates that the sensor elements 13 to 18, 21 to 24, and 26 to 30 are detecting the pulse wave. In the fourth time, sensor elements 9 to 12, 13 to 18, 19 to 24, and 26 to 30 indicate that pulse waves are detected. In the fifth measurement, it is shown that the sensor elements 16 to 18, 21 to 24, 26 to 30, and 34 to 36 detect the pulse wave.

  In the subject 1 shown in the chart of FIG. 11, the pulse wave is detected in a band shape. That is, the pulse wave is detected along the radial artery. Compared to the case where the angle formed by the case body 1 and the band body 20 as shown in the chart of FIG. 10 is 0 degree, the sensor element that is planarly overlapped with the blood vessel detects the pulse wave, and the pulse wave is detected. The number of sensor elements that can be increased. The same applies to the other subjects 2 to 4. This indicates that the sensor 5 is uniformly in pressure contact with the measurement site.

As apparent from comparison between the chart of FIG. 10 and the chart of FIG. 11, the mounting device 10 uses a variable angle mechanism to change the angle formed by the case body 1 and the band body 20 to a predetermined angle (see FIGS. 10 and 11). In the case shown, by tilting the angle α2 by 13 degrees, the sensor contact surface 51 of the sensor 5 (see FIGS. 2 and 3) was able to uniformly press against the skin of the human body that is the measurement site. .
The first band 2 is urged in the direction of the case body 1 by the urging means of the mounting device 10, but the angle variable mechanism fixes the angle formed by the case body 1 and the band body 20 by the lock mechanism. Therefore, the urging force by the urging means does not escape and the state in which the sensor 5 is pressed against the part to be measured can be maintained.
As a result, even if the arm is shaken during exercise or training and acceleration is applied, the number of sensor elements that can detect pulse waves in the sensor array 50 is large as shown in the chart of FIG. Because the range is wide, there are few sensor elements that fail to detect the pulse wave.
That is, it is possible to obtain data that is resistant to disturbances and reliable in heart rate measurement.

[Description of Display Unit: FIG. 12]
Next, contents displayed on the display unit 8 will be described. In addition, a method for adjusting the case body 1 and the band body 2 to an optimum inclination angle by linking the display unit 8 and the angle variable mechanism will be described.

FIG. 12 is a plan view showing the display unit 8 on the upper surface of the case body 1 of the mounting apparatus 10.
As shown in FIG. 12, the display unit 8 displays a clock display unit 81, a biological information display unit 82 that displays exercise intensity and heart rate, and angles (α1, α2) formed by the case body 1 and the band body 20. It is formed from the inclination angle display part 83 which performs.

  The clock display unit 81 calculates and displays time information from the time measuring means mounted on the mounting device 10. In the example shown in FIG. 12, 12:38:50 is shown.

  The biological information display unit 82 calculates and displays the heart rate from the pulse wave obtained from the sensor 5, and calculates and displays the exercise intensity from the heart rate. The heart rate is usually indicated by the number of heart beats per minute. For example, the pulse wave may be measured for one minute and displayed as a heart rate, but as described above, the pulse wave detected at a predetermined time (several seconds) is converted into a pulse wave appearing in one minute. It may be displayed as a heart rate. In the example shown in FIG. 12, the heart rate (BPM) indicates 127.

  The exercise intensity is an index indicating the intensity of exercise and the load applied to the body, and indicates the percentage of exercise with the maximum oxygen intake taken as 100%. When exercise or training is performed using such exercise intensity, the target exercise intensity that is the target exercise intensity is set, and the exercise amount is the target heart rate that is the heart rate corresponding to this target intensity. How to manage is known.

The numerical value of the exercise intensity is not specified by the exercise to be performed and the type thereof, and even if the same exercise is performed, the numerical value is different depending on the individual. Therefore, in order to know the numerical value accurately, since the energy consumption during long exercise is roughly proportional to the oxygen intake, it is necessary to measure the oxygen intake during exercise. However, this requires a large-scale device and specialized knowledge, and it is generally difficult to know the numerical values.
For this reason, in recent years, instead of measuring oxygen intake during exercise, it is quantified based on the heart rate of the heart that is roughly proportional to the oxygen intake, and the load on the body is grasped by the heart rate. -ing

  As the exercise intensity, a numerical value with% HRR as a unit can be calculated by a known carbonnen method. The exercise intensity (% HRR) by the carbonene method is calculated by the calculation of the following equation. The heart rate is a measured value obtained from the sensor 5, and the maximum heart rate can be obtained by a number obtained by subtracting age from 220.

    Exercise intensity (% HRR) = (heart rate−resting heart rate) ÷ (maximum heart rate−resting heart rate) × 100

  For example, when a person 40 years old wears the wearing apparatus 10 and performs exercise or sports, the heart rate at that time is 135. If the resting heart rate of the user of the wearing device 10 is 70, the exercise intensity (% HRR) is about 59%. FIG. 12 shows the numbers.

  Except for professional athletes who have received special training, it is said that exercise of 50% to 60% of exercise intensity is equivalent to aerobic exercise and fat burning efficiency is high for ordinary people to sports enthusiasts. . If the user of the mounting device 10 exercises while visually observing the numerical value of the exercise intensity, it is effective for dieting.

  In the example shown in FIG. 12, the biometric information display unit 82 increases or decreases the number of exercise intensity in addition to a number, a graphic simulating a person running, or a bar display graduated with 10, 50, 100. The display is used together. In addition, the heart symbol is blinked while measuring the pulse wave or displaying the heart rate.

By the way, the angle (α1, α2) formed between the case body 1 and the band body 20 is mounted with a known tilt sensor inside the case body 1 and the case body 1 and the band body 20 using an angle variable mechanism. When the angle (α1, α2) is set, the angle may be calculated from information from the tilt sensor.
In this case, the calculated angle can be displayed on the tilt angle display unit 83 as, for example, 13 degrees.

Further, the output signal of the 6 × 7 matrix type sensor array 50 shown in FIG. 9 is used so that the case body 1 and the band body 20 have an appropriate angle from the pulse wave detection state of each sensor element. Good.
In that case, the tilt angle display unit 83 may graphically display the detection state of the pulse wave for each sensor element as a dot matrix type display means. In the example shown in FIG. 12, the tilt angle display unit 83 displays a 3 × 6 dot matrix graphic.

The adjustment of the tilt angle of the case body 1 by the tilt angle display unit 83 is preferably performed according to the following procedure.
First, the wearer 10 is worn on the wrist, and although not shown, the pulse rate is measured by operating a switch or the like to start measuring the heart rate.
Loosen the fixing knob 4. In this state, the click mechanism works and the case body 1 maintains its position.
Next, the case body 1 is gradually tilted while viewing the display of the 3 × 6 dot matrix on the tilt angle display portion 83. The optimum tilt angle is a state in which the sensor 5 uniformly presses the wrist along the radial artery, and therefore, the display state of the tilt angle display unit 83 detects a pulse wave with more sensor elements. The inclination of the case body 1 is stopped at the position where the state becomes the state.
Then, the fixing knob 4 of the lock mechanism is fastened and fixed.
By the simple procedure as described above, the angles (α1, α2) formed by the case body 1 and the band body 20 are set to the optimum inclination angle.

  The display method of the tilt angle display unit 83 is not particularly limited. Even in a graphical 3 × 6 dot matrix display, each dot may be in the shape of a cross or a circle, or a display like a line graph may be used. Of course, it goes without saying that notification by sound such as a buzzer sound may be used together.

  The mounting device 10 has an angle variable mechanism that changes the angle formed by the case body 1 and the band body 20 and an urging means that urges the first band 2. Therefore, the mounting device 10 can be used not only for a biological information measuring device equipped with the sensor 5 and a wristwatch but also for an ornament such as a bracelet. Further, the present invention can also be applied to wearable devices such as music players worn on the human body and small portable terminals such as mobile phones.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this. For example, in the above embodiment, the mounting device 10 is mounted on the wrist. It can also be configured to be worn on other living body parts such as ankles, knees, fingers, and necks. In the above embodiment, it is applied to a human body as a living body. For example, animals such as dogs and chimpanzees Various modifications can be made without departing from the object of the present invention, such as being able to be worn for health management.

DESCRIPTION OF SYMBOLS 1 Case body 2 1st band 3 Hinge part 4 Fixing knob 5 Sensor 6 2nd band 7 Band connection part 8 Display part 10 Mounting apparatus 11 Front surface part 11a Front surface 11 surface 11b Front surface 11 back surface 11c Hinge escape portion 11d cut portion 12 rear end portion of case body 1 13 through hole 14 hinge clamp portion 15 locking shaft 16 guide pin hole 17 rectangular hole for guide 20 band body 21 hinge side end portion 22 second band side end portion 23 Opposite surface 24 Opening portion 31 Hole 32a, 32b of hinge connecting portion Cover portion 33 Rack 34 Hinge connecting portion 41 Nut 42 Claw 43 Leaf spring 50 Sensor array 51 Sensor contact surface 61 Branching portion 62 Joining portion 63 Surface fastener 64 Folding portion 71 First 1 connection member 72 2nd connection member 81 clock display part 82 biometric information table Part 83 tilt angle display unit 321 detent of the guide pins 423 nail tip 422 nails fixed cam 321a fixed cam contact surface 322 movable cams 322a movable cam contact surface 323 biasing spring 421 nails

Claims (5)

A case body having a contact surface that comes into contact with an attachment site of a living body; and a band body including a facing surface facing the contact surface; and the contact surface of the case body and the facing surface of the band body. An attachment device for attaching the case body to the attachment site by sandwiching the attachment site,
An angle variable mechanism that couples the case body and the band body and variably couples an angle formed by the contact surface of the case body and the facing surface of the band body;
The band device is formed of a rigid member having a rigidity from a portion ranging from the angle varying mechanism to the facing surface.   The mounting apparatus according to claim 1, wherein the mounting apparatus includes a biasing unit that biases the contact surface of the case body and the rigid member of the band body toward each other.   The mounting apparatus according to claim 1, wherein the angle variable mechanism includes a lock mechanism that fixes the angle of the case body and the band body to a predetermined angle. The case body includes a sensor that measures biological information in contact with the contact surface,
The mounting apparatus according to claim 1, wherein the biological information is any one of pulse, blood pressure, and sweating, or a combination thereof. The case body includes display means for displaying the biological information,
The mounting device according to claim 4, wherein the display unit displays the biometric information in any one of a picture, a character, and a graphic, or a combination thereof.

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